├── .gitignore ├── project ├── build.properties ├── plugins.sbt └── FluenceCrossType.scala ├── .travis.yml ├── cipher ├── js │ └── src │ │ ├── main │ │ └── scala │ │ │ └── fluence │ │ │ └── crypto │ │ │ ├── facade │ │ │ └── cryptojs │ │ │ │ ├── Key.scala │ │ │ │ ├── Enc.scala │ │ │ │ ├── Lib.scala │ │ │ │ ├── Mode.scala │ │ │ │ ├── Algos.scala │ │ │ │ ├── Hex.scala │ │ │ │ ├── Pad.scala │ │ │ │ ├── WordArrayFactory.scala │ │ │ │ ├── KeyOptions.scala │ │ │ │ ├── CryptoJS.scala │ │ │ │ ├── AES.scala │ │ │ │ └── CryptOptions.scala │ │ │ └── aes │ │ │ └── AesCrypt.scala │ │ └── test │ │ └── scala │ │ └── fluence │ │ └── crypto │ │ └── AesJSSpec.scala ├── src │ └── main │ │ └── scala │ │ └── fluence │ │ └── crypto │ │ └── aes │ │ └── AesConfig.scala └── jvm │ └── src │ ├── test │ └── scala │ │ └── fluence │ │ └── crypto │ │ └── AesSpec.scala │ └── main │ └── scala │ └── fluence │ └── crypto │ └── aes │ └── AesCrypt.scala ├── hashsign ├── js │ └── src │ │ └── main │ │ └── scala │ │ └── fluence │ │ └── crypto │ │ ├── facade │ │ ├── Buffer.scala │ │ ├── ed25519 │ │ │ └── Supercop.scala │ │ └── ecdsa │ │ │ ├── Hash.scala │ │ │ └── Elliptic.scala │ │ ├── hash │ │ ├── CryptoHashers.scala │ │ └── JsCryptoHasher.scala │ │ ├── CryptoJsHelpers.scala │ │ ├── eddsa │ │ └── Ed25519.scala │ │ └── ecdsa │ │ └── Ecdsa.scala ├── jvm │ └── src │ │ ├── main │ │ └── scala │ │ │ └── fluence │ │ │ └── crypto │ │ │ ├── hash │ │ │ ├── CryptoHashers.scala │ │ │ └── JdkCryptoHasher.scala │ │ │ ├── JavaAlgorithm.scala │ │ │ ├── eddsa │ │ │ └── Ed25519.scala │ │ │ └── ecdsa │ │ │ └── Ecdsa.scala │ │ └── test │ │ └── scala │ │ └── fluence │ │ └── crypto │ │ └── JvmEcdsaSpec.scala └── src │ └── test │ └── scala │ └── fluence │ └── crypto │ ├── HashSpec.scala │ ├── EcdsaSpec.scala │ └── Ed25519Spec.scala ├── core └── src │ ├── main │ └── scala │ │ └── fluence │ │ └── crypto │ │ ├── signature │ │ ├── SignatureChecker.scala │ │ ├── PubKeyAndSignature.scala │ │ ├── Signer.scala │ │ ├── Signature.scala │ │ └── SignAlgo.scala │ │ ├── CryptoError.scala │ │ ├── KeyPair.scala │ │ ├── Crypto.scala │ │ ├── DumbCrypto.scala │ │ └── cipher │ │ └── CipherSearch.scala │ └── test │ └── scala │ └── fluence │ └── crypto │ ├── NoOpCryptSpec.scala │ └── CryptoSearchingSpec.scala ├── .scalafmt.conf ├── CONTRIBUTING.md ├── README.md ├── FluenceCLA.md └── LICENSE.md /.gitignore: -------------------------------------------------------------------------------- 1 | .idea 2 | target 3 | log -------------------------------------------------------------------------------- /project/build.properties: -------------------------------------------------------------------------------- 1 | sbt.version = 1.2.8 2 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | sudo: required 2 | 3 | language: scala 4 | scala: 5 | - 2.12.9 6 | 7 | # These directories are cached to S3 at the end of the build 8 | cache: 9 | directories: 10 | - $HOME/.ivy2/cache 11 | - $HOME/.sbt/boot 12 | - $HOME/.sbt/launchers 13 | 14 | before_cache: 15 | # Tricks to avoid unnecessary cache updates 16 | - find $HOME/.sbt -name "*.lock" | xargs rm 17 | - find $HOME/.ivy2 -name "ivydata-*.properties" | xargs rm -------------------------------------------------------------------------------- /project/plugins.sbt: -------------------------------------------------------------------------------- 1 | addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.0.1") 2 | 3 | addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.3.20") 4 | 5 | addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.2.0") 6 | 7 | addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.28") 8 | addSbtPlugin("org.portable-scala" % "sbt-crossproject" % "0.6.0") 9 | addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "0.6.0") 10 | 11 | addSbtPlugin("ch.epfl.scala" % "sbt-scalajs-bundler" % "0.14.0") 12 | 13 | addSbtPlugin("net.virtual-void" % "sbt-dependency-graph" % "0.9.2") 14 | 15 | addSbtPlugin("org.foundweekends" % "sbt-bintray" % "0.5.4") 16 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/Key.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | 22 | @js.native 23 | trait Key extends js.Object 24 | -------------------------------------------------------------------------------- /project/FluenceCrossType.scala: -------------------------------------------------------------------------------- 1 | import sbt._ 2 | import sbtcrossproject.CrossPlugin.autoImport._ 3 | 4 | import scalajscrossproject.ScalaJSCrossPlugin.autoImport._ 5 | 6 | /** 7 | * cross types https://github.com/portable-scala/sbt-crossproject 8 | * http://xuwei-k.github.io/slides/scala-js-matsuri/#21 9 | * avoid move files 10 | */ 11 | object FluenceCrossType extends sbtcrossproject.CrossType { 12 | override def projectDir(crossBase: File, projectType: String) = 13 | crossBase / projectType 14 | 15 | override def projectDir(crossBase: File, projectType: sbtcrossproject.Platform) = { 16 | val dir = projectType match { 17 | case JVMPlatform ⇒ "jvm" 18 | case JSPlatform ⇒ "js" 19 | } 20 | crossBase / dir 21 | } 22 | 23 | def shared(projectBase: File, conf: String) = 24 | projectBase.getParentFile / "src" / conf / "scala" 25 | 26 | override def sharedSrcDir(projectBase: File, conf: String) = 27 | Some(shared(projectBase, conf)) 28 | } 29 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/Enc.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | 22 | @js.native 23 | trait Enc extends js.Object { 24 | def Hex: Hex = js.native 25 | } 26 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/Lib.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | 22 | @js.native 23 | trait Lib extends js.Object { 24 | def WordArray: WordArrayFactory = js.native 25 | } 26 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/Mode.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | 22 | @js.native 23 | trait Modes extends js.Object { 24 | val CBC: Mode = js.native 25 | } 26 | 27 | @js.native 28 | trait Mode extends js.Object 29 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/Algos.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | 22 | @js.native 23 | trait Algos extends js.Object { 24 | def SHA256: Algo = js.native 25 | } 26 | 27 | @js.native 28 | trait Algo extends js.Object 29 | -------------------------------------------------------------------------------- /hashsign/js/src/main/scala/fluence/crypto/facade/Buffer.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade 19 | 20 | import scala.scalajs.js 21 | import scala.scalajs.js.annotation.JSGlobal 22 | 23 | @js.native 24 | @JSGlobal("Buffer") 25 | class Buffer(arr: js.Array[Byte]) extends js.Object { 26 | def toString(enc: String): String = js.native 27 | } 28 | -------------------------------------------------------------------------------- /core/src/main/scala/fluence/crypto/signature/SignatureChecker.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.signature 19 | 20 | import cats.data.Kleisli 21 | import fluence.crypto.Crypto 22 | import scodec.bits.ByteVector 23 | 24 | import scala.language.higherKinds 25 | 26 | case class SignatureChecker(check: Kleisli[Crypto.Result, (Signature, ByteVector), Unit]) 27 | -------------------------------------------------------------------------------- /hashsign/js/src/main/scala/fluence/crypto/hash/CryptoHashers.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.hash 19 | 20 | import fluence.crypto.Crypto 21 | 22 | object CryptoHashers { 23 | lazy val Sha1: Crypto.Hasher[Array[Byte], Array[Byte]] = JsCryptoHasher.Sha1 24 | 25 | lazy val Sha256: Crypto.Hasher[Array[Byte], Array[Byte]] = JsCryptoHasher.Sha256 26 | } 27 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/Hex.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | 22 | @js.native 23 | trait Hex extends js.Object { 24 | 25 | /** 26 | * Parse from HEX to JS byte representation 27 | * @param str Hex 28 | */ 29 | def parse(str: String): WordArray = js.native 30 | } 31 | -------------------------------------------------------------------------------- /hashsign/jvm/src/main/scala/fluence/crypto/hash/CryptoHashers.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.hash 19 | 20 | import fluence.crypto.Crypto 21 | 22 | object CryptoHashers { 23 | lazy val Sha1: Crypto.Hasher[Array[Byte], Array[Byte]] = JdkCryptoHasher.Sha1 24 | 25 | lazy val Sha256: Crypto.Hasher[Array[Byte], Array[Byte]] = JdkCryptoHasher.Sha256 26 | } 27 | -------------------------------------------------------------------------------- /.scalafmt.conf: -------------------------------------------------------------------------------- 1 | version = 2.0.1 2 | 3 | docstrings = JavaDoc 4 | 5 | maxColumn = 120 6 | 7 | align = some 8 | align.tokens = [{code = "=>", owner = "Case"}, ":=", "%", "%%", "%%%"] 9 | 10 | assumeStandardLibraryStripMargin = true 11 | includeCurlyBraceInSelectChains = false 12 | 13 | continuationIndent { 14 | callSite = 2 15 | defnSite = 2 16 | extendSite = 4 17 | } 18 | 19 | danglingParentheses = true 20 | 21 | newlines { 22 | alwaysBeforeTopLevelStatements = true 23 | sometimesBeforeColonInMethodReturnType = true 24 | penalizeSingleSelectMultiArgList = false 25 | alwaysBeforeElseAfterCurlyIf = false 26 | neverInResultType = false 27 | } 28 | 29 | spaces { 30 | afterKeywordBeforeParen = true 31 | } 32 | 33 | binPack { 34 | parentConstructors = true 35 | literalArgumentLists = true 36 | } 37 | 38 | optIn { 39 | breaksInsideChains = false 40 | breakChainOnFirstMethodDot = true 41 | configStyleArguments = true 42 | } 43 | 44 | runner { 45 | optimizer { 46 | forceConfigStyleOnOffset = 150 47 | forceConfigStyleMinArgCount = 2 48 | } 49 | } 50 | 51 | rewrite { 52 | rules = [ 53 | SortImports 54 | ] 55 | } 56 | 57 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/Pad.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | import scala.scalajs.js.annotation.JSGlobal 22 | 23 | @js.native 24 | @JSGlobal 25 | class Paddings extends js.Object { 26 | 27 | val Pkcs7: Pad = js.native 28 | } 29 | 30 | @js.native 31 | @JSGlobal 32 | class Pad extends js.Object 33 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/WordArrayFactory.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | 22 | @js.native 23 | trait WordArrayFactory extends js.Object { 24 | 25 | def random(size: Int): WordArray = js.native 26 | def create(array: js.Any): WordArray = js.native 27 | } 28 | 29 | @js.native 30 | trait WordArray extends js.Object 31 | -------------------------------------------------------------------------------- /cipher/src/main/scala/fluence/crypto/aes/AesConfig.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.aes 19 | 20 | /** 21 | * Config for AES-256 password based encryption 22 | * @param iterationCount The number of iterations of hashing the password 23 | * @param salt Salt, which will be mixed with the password 24 | */ 25 | case class AesConfig( 26 | iterationCount: Int = 50, 27 | salt: String = "fluence" 28 | ) 29 | -------------------------------------------------------------------------------- /hashsign/js/src/main/scala/fluence/crypto/CryptoJsHelpers.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import io.scalajs.nodejs.buffer.Buffer 21 | import scodec.bits.ByteVector 22 | 23 | import scala.language.higherKinds 24 | 25 | object CryptoJsHelpers { 26 | implicit class ByteVectorOp(bv: ByteVector) { 27 | def toJsBuffer: Buffer = Buffer.from(ByteVector(bv.toArray).toHex, "hex") 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /core/src/main/scala/fluence/crypto/CryptoError.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import scala.language.higherKinds 21 | import scala.util.control.NoStackTrace 22 | 23 | case class CryptoError(message: String, causedBy: Option[Throwable] = None) extends NoStackTrace { 24 | override def getMessage: String = message 25 | 26 | override def getCause: Throwable = causedBy getOrElse super.getCause 27 | } 28 | -------------------------------------------------------------------------------- /core/src/main/scala/fluence/crypto/signature/PubKeyAndSignature.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.signature 19 | 20 | import fluence.crypto.KeyPair 21 | 22 | /** 23 | * Container for public key of signer and a signature. 24 | * 25 | * @param publicKey Public key of signature maker 26 | * @param signature Some signature 27 | */ 28 | case class PubKeyAndSignature(publicKey: KeyPair.Public, signature: Signature) 29 | -------------------------------------------------------------------------------- /core/src/main/scala/fluence/crypto/signature/Signer.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.signature 19 | 20 | import cats.instances.either._ 21 | import fluence.crypto.{Crypto, KeyPair} 22 | import scodec.bits.ByteVector 23 | 24 | case class Signer(publicKey: KeyPair.Public, sign: Crypto.Func[ByteVector, Signature]) { 25 | lazy val signWithPK: Crypto.Func[ByteVector, PubKeyAndSignature] = sign.map(PubKeyAndSignature(publicKey, _)) 26 | } 27 | -------------------------------------------------------------------------------- /core/src/main/scala/fluence/crypto/signature/Signature.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.signature 19 | 20 | import scodec.bits.ByteVector 21 | 22 | /** Container for a signature. */ 23 | case class Signature private (sign: ByteVector) extends AnyVal { 24 | def bytes: Array[Byte] = sign.toArray 25 | } 26 | 27 | object Signature { 28 | 29 | def apply(sign: ByteVector): Signature = new Signature(sign) 30 | 31 | def apply(sign: Array[Byte]): Signature = new Signature(ByteVector(sign)) 32 | 33 | } 34 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/KeyOptions.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | 22 | @js.native 23 | trait KeyOptions extends js.Object { 24 | val keySize: Int 25 | val iterations: Int 26 | val hasher: Algo 27 | } 28 | 29 | object KeyOptions { 30 | 31 | def apply(keySizeBits: Int, iterations: Int, hasher: Algo): KeyOptions = { 32 | js.Dynamic.literal(keySize = keySizeBits / 32, iterations = iterations, hasher = hasher).asInstanceOf[KeyOptions] 33 | } 34 | } 35 | -------------------------------------------------------------------------------- /core/src/main/scala/fluence/crypto/KeyPair.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import scodec.bits.ByteVector 21 | 22 | case class KeyPair(publicKey: KeyPair.Public, secretKey: KeyPair.Secret) 23 | 24 | object KeyPair { 25 | 26 | case class Public(value: ByteVector) extends AnyVal { 27 | def bytes: Array[Byte] = value.toArray 28 | } 29 | 30 | case class Secret(value: ByteVector) extends AnyVal { 31 | def bytes: Array[Byte] = value.toArray 32 | } 33 | 34 | def fromBytes(pk: Array[Byte], sk: Array[Byte]): KeyPair = fromByteVectors(ByteVector(pk), ByteVector(sk)) 35 | def fromByteVectors(pk: ByteVector, sk: ByteVector): KeyPair = KeyPair(Public(pk), Secret(sk)) 36 | } 37 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/CryptoJS.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | import scala.scalajs.js.annotation.JSImport 22 | 23 | @js.native 24 | @JSImport("crypto-js", JSImport.Namespace) 25 | object CryptoJS extends js.Object { 26 | 27 | def pad: Paddings = js.native 28 | def mode: Modes = js.native 29 | def AES: AES = js.native 30 | 31 | /** 32 | * https://en.wikipedia.org/wiki/PBKDF2 33 | * @return Salted and hashed key 34 | */ 35 | def PBKDF2(pass: String, salt: String, options: KeyOptions): Key = js.native 36 | 37 | def lib: Lib = js.native 38 | 39 | def enc: Enc = js.native 40 | 41 | def algo: Algos = js.native 42 | } 43 | -------------------------------------------------------------------------------- /hashsign/js/src/main/scala/fluence/crypto/facade/ed25519/Supercop.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.ed25519 19 | 20 | import io.scalajs.nodejs.buffer.Buffer 21 | 22 | import scala.scalajs.js 23 | import scala.scalajs.js.annotation.JSImport 24 | 25 | @js.native 26 | trait KeyPair extends js.Object { 27 | val publicKey: Buffer 28 | val secretKey: Buffer 29 | } 30 | 31 | @js.native 32 | @JSImport("supercop.js", JSImport.Namespace) 33 | object Supercop extends js.Object { 34 | def verify(sig: Buffer, msg: Buffer, pubKey: Buffer): Boolean = js.native 35 | def sign(msg: Buffer, pubKey: Buffer, privKey: Buffer): Buffer = js.native 36 | def createKeyPair(seed: Buffer): KeyPair = js.native 37 | def createSeed(): Buffer = js.native 38 | } 39 | -------------------------------------------------------------------------------- /CONTRIBUTING.md: -------------------------------------------------------------------------------- 1 | ## Contribute Code 2 | 3 | You are welcome to contribute to Fluence. 4 | 5 | Things you need to know: 6 | 7 | 1. You need to **agree to the Contributors License Agreement**. This is a common practice in all major Open Source projects. At the current moment we are unable to accept contributions made on behalf of a company. Only individual contributions will be accepted. 8 | 2. **Not all proposed contributions can be accepted**. Some features may e.g. just fit a third-party add-on better. The contribution must fit the overall direction of Fluence and really improve it. The more effort you invest, the better you should clarify in advance whether the contribution fits: the best way would be to just open an issue to discuss the contribution you plan to make. 9 | 10 | ### Contributor License Agreement 11 | 12 | When you contribute, you have to be aware that your contribution is covered by **GNU Affero General Public License**, but might relicensed under few other software licenses mentioned in the **Contributor License Agreement**. 13 | In particular you need to agree to the [Contributor License Agreement](https://gist.github.com/fluencelabs-org/3f4cbb3cc14c1c0fb9ad99d8f7316ed7). If you agree to its content, you simply have to click on the link posted by the CLA assistant as a comment to the pull request. Click it to check the CLA, then accept it on the following screen if you agree to it. CLA assistant will save this decision for upcoming contributions and will notify you if there is any change to the CLA in the meantime. 14 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/AES.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | import scala.scalajs.js.annotation.JSGlobal 22 | 23 | @js.native 24 | @JSGlobal 25 | class AES extends js.Object { 26 | 27 | /** 28 | * @param msg Message to encrypt in JS WordArray. 29 | * Could be created with CryptoJS.lib.WordArray.create(new Int8Array(arrayByte.toJSArray)) 30 | * @param options { iv: iv, padding: CryptoJS.pad.Pkcs7, mode: CryptoJS.mode.CBC } 31 | * @return Encrypted message 32 | */ 33 | def encrypt(msg: WordArray, key: Key, options: CryptOptions): js.Any = js.native 34 | 35 | def decrypt(encrypted: String, key: Key, options: CryptOptions): js.Any = js.native 36 | } 37 | -------------------------------------------------------------------------------- /hashsign/js/src/main/scala/fluence/crypto/facade/ecdsa/Hash.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.ecdsa 19 | 20 | import scala.scalajs.js 21 | import scala.scalajs.js.annotation.JSImport 22 | import scala.scalajs.js.typedarray.Uint8Array 23 | 24 | //TODO hide enc argument in methods, make it `hex` by default 25 | /** 26 | * https://github.com/indutny/hash.js - part of elliptic library 27 | */ 28 | @js.native 29 | @JSImport("hash.js", "sha256") 30 | class SHA256() extends js.Object { 31 | def update(msg: Uint8Array): Unit = js.native 32 | def digest(enc: String): String = js.native 33 | } 34 | 35 | @js.native 36 | @JSImport("hash.js", "sha1") 37 | class SHA1() extends js.Object { 38 | def update(msg: Uint8Array): Unit = js.native 39 | def digest(enc: String): String = js.native 40 | } 41 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/facade/cryptojs/CryptOptions.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.cryptojs 19 | 20 | import scala.scalajs.js 21 | 22 | @js.native 23 | trait CryptOptions extends js.Object { 24 | val iv: Option[js.Any] 25 | val padding: Pad 26 | val mode: Mode 27 | } 28 | 29 | object CryptOptions { 30 | 31 | def apply(iv: Option[WordArray], padding: Pad, mode: Mode): CryptOptions = { 32 | iv match { 33 | case Some(i) ⇒ 34 | js.Dynamic.literal(iv = i, padding = padding, mode = mode).asInstanceOf[CryptOptions] 35 | case None ⇒ 36 | //if IV is empty, there will be an error in JS lib 37 | js.Dynamic 38 | .literal(iv = CryptoJS.lib.WordArray.random(0), padding = padding, mode = mode) 39 | .asInstanceOf[CryptOptions] 40 | } 41 | 42 | } 43 | } 44 | -------------------------------------------------------------------------------- /hashsign/jvm/src/main/scala/fluence/crypto/JavaAlgorithm.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import java.security.Security 21 | 22 | import org.bouncycastle.jce.provider.BouncyCastleProvider 23 | 24 | import scala.language.{higherKinds, implicitConversions} 25 | 26 | /** 27 | * trait that initializes a JVM-specific provider to work with cryptography 28 | */ 29 | private[crypto] trait JavaAlgorithm { 30 | JavaAlgorithm.addProvider 31 | } 32 | 33 | object JavaAlgorithm { 34 | 35 | /** 36 | * add JVM-specific security provider in class loader 37 | */ 38 | private lazy val addProvider = { 39 | Option(Security.getProvider(BouncyCastleProvider.PROVIDER_NAME)) 40 | .foreach(_ ⇒ Security.removeProvider(BouncyCastleProvider.PROVIDER_NAME)) 41 | Security.addProvider(new BouncyCastleProvider()) 42 | } 43 | } 44 | -------------------------------------------------------------------------------- /core/src/test/scala/fluence/crypto/NoOpCryptSpec.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import org.scalatest.{Matchers, WordSpec} 21 | 22 | class NoOpCryptSpec extends WordSpec with Matchers { 23 | 24 | "NoOpCrypt" should { 25 | "convert a string to bytes back and forth without any cryptography" in { 26 | 27 | val noOpCrypt = DumbCrypto.cipherString 28 | 29 | val emptyString = "" 30 | noOpCrypt.decrypt(noOpCrypt.encrypt(emptyString).right.get).right.get shouldBe emptyString 31 | val nonEmptyString = "some text here" 32 | noOpCrypt.decrypt(noOpCrypt.encrypt(nonEmptyString).right.get).right.get shouldBe nonEmptyString 33 | val byteArray = Array(1.toByte, 23.toByte, 45.toByte) 34 | noOpCrypt.encrypt(noOpCrypt.decrypt(byteArray).right.get).right.get shouldBe byteArray 35 | } 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /hashsign/jvm/src/test/scala/fluence/crypto/JvmEcdsaSpec.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import fluence.crypto.ecdsa.Ecdsa 21 | import org.scalatest.{Matchers, WordSpec} 22 | import scodec.bits.ByteVector 23 | 24 | import scala.util.Random 25 | 26 | class JvmEcdsaSpec extends WordSpec with Matchers { 27 | 28 | def rndBytes(size: Int): Array[Byte] = Random.nextString(10).getBytes 29 | 30 | def rndByteVector(size: Int) = ByteVector(rndBytes(size)) 31 | 32 | "jvm ecdsa algorithm" should { 33 | 34 | "restore key pair from secret key" in { 35 | val algo = Ecdsa.signAlgo 36 | val testKeys = algo.generateKeyPair(None).right.get 37 | 38 | val ecdsa = Ecdsa.ecdsa_secp256k1_sha256 39 | 40 | val newKeys = ecdsa.restorePairFromSecret(testKeys.secretKey).right.get 41 | 42 | testKeys shouldBe newKeys 43 | } 44 | } 45 | } 46 | -------------------------------------------------------------------------------- /core/src/main/scala/fluence/crypto/Crypto.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import cats.data.Kleisli 21 | 22 | import scala.util.Try 23 | 24 | object Crypto { 25 | type Result[T] = Either[CryptoError, T] 26 | 27 | type Hasher[A, B] = Kleisli[Result, A, B] 28 | 29 | type Func[A, B] = Kleisli[Result, A, B] 30 | 31 | case class Cipher[A]( 32 | encrypt: Kleisli[Result, A, Array[Byte]], 33 | decrypt: Kleisli[Result, Array[Byte], A] 34 | ) 35 | 36 | type KeyPairGenerator = Kleisli[Result, Option[Array[Byte]], KeyPair] 37 | 38 | def apply[A, B](fn: A ⇒ Result[B]): Func[A, B] = Kleisli[Result, A, B](fn) 39 | 40 | def tryFn[A, B](fn: A ⇒ B)(errorText: String): Crypto.Func[A, B] = 41 | Crypto(a ⇒ tryUnit(fn(a))(errorText)) 42 | 43 | def tryUnit[B](fn: ⇒ B)(errorText: String): Result[B] = 44 | Try(fn).toEither.left.map(t ⇒ CryptoError(errorText, Some(t))) 45 | 46 | def cond[B](ifTrue: ⇒ B, errorText: ⇒ String): Crypto.Func[Boolean, B] = 47 | Crypto(Either.cond(_, ifTrue, CryptoError(errorText))) 48 | } 49 | -------------------------------------------------------------------------------- /hashsign/jvm/src/main/scala/fluence/crypto/hash/JdkCryptoHasher.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.hash 19 | 20 | import java.security.MessageDigest 21 | 22 | import fluence.crypto.{Crypto, CryptoError} 23 | 24 | import scala.util.Try 25 | 26 | object JdkCryptoHasher { 27 | 28 | lazy val Sha256: Crypto.Hasher[Array[Byte], Array[Byte]] = apply("SHA-256") 29 | lazy val Sha1: Crypto.Hasher[Array[Byte], Array[Byte]] = apply("SHA-1") 30 | 31 | /** 32 | * Thread-safe implementation of [[Crypto.Hasher]] with standard jdk [[java.security.MessageDigest]] 33 | * 34 | * @param algorithm one of allowed hashing algorithms 35 | * [[https://docs.oracle.com/javase/7/docs/technotes/guides/security/StandardNames.html#MessageDigest]] 36 | */ 37 | def apply(algorithm: String): Crypto.Hasher[Array[Byte], Array[Byte]] = 38 | Crypto( 39 | bytes ⇒ 40 | Try(MessageDigest.getInstance(algorithm).digest(bytes)).toEither.left 41 | .map(err ⇒ CryptoError(s"Cannot get $algorithm hash", Some(err))) 42 | ) 43 | 44 | } 45 | -------------------------------------------------------------------------------- /core/src/test/scala/fluence/crypto/CryptoSearchingSpec.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import fluence.crypto.cipher.CipherSearch 21 | import org.scalatest.{Matchers, WordSpec} 22 | 23 | import scala.collection.Searching.{Found, InsertionPoint} 24 | 25 | class CryptoSearchingSpec extends WordSpec with Matchers { 26 | 27 | "search" should { 28 | "correct search plainText key in encrypted data" in { 29 | 30 | val crypt: Crypto.Cipher[String] = DumbCrypto.cipherString 31 | 32 | val plainTextElements = Array("A", "B", "C", "D", "E") 33 | val encryptedElements = plainTextElements.map(t ⇒ crypt.encrypt.run(t).right.get) 34 | 35 | val search = CipherSearch.binarySearch(encryptedElements, crypt.decrypt) 36 | 37 | search("B").right.get shouldBe Found(1) 38 | search("D").right.get shouldBe Found(3) 39 | search("E").right.get shouldBe Found(4) 40 | 41 | search("0").right.get shouldBe InsertionPoint(0) 42 | search("BB").right.get shouldBe InsertionPoint(2) 43 | search("ZZ").right.get shouldBe InsertionPoint(5) 44 | 45 | } 46 | } 47 | 48 | } 49 | -------------------------------------------------------------------------------- /core/src/main/scala/fluence/crypto/signature/SignAlgo.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.signature 19 | 20 | import cats.data.Kleisli 21 | import fluence.crypto.{Crypto, KeyPair} 22 | import scodec.bits.ByteVector 23 | 24 | import scala.language.higherKinds 25 | 26 | /** 27 | * Signature algorithm -- cryptographically coupled keypair, signer and signature checker. 28 | * 29 | * @param name Algorithm name 30 | * @param generateKeyPair Keypair generator; note that you must ensure the seed entropy is secure 31 | * @param signer Signer for a given keypair 32 | * @param checker Checker for a given public key 33 | */ 34 | case class SignAlgo( 35 | name: String, 36 | generateKeyPair: Crypto.KeyPairGenerator, 37 | signer: SignAlgo.SignerFn, 38 | implicit val checker: SignAlgo.CheckerFn 39 | ) 40 | 41 | object SignAlgo { 42 | type SignerFn = KeyPair ⇒ Signer 43 | 44 | type CheckerFn = KeyPair.Public ⇒ SignatureChecker 45 | 46 | /** 47 | * For CheckerFn, builds a function that takes PubKeyAndSignature along with plain data, and checks the signature. 48 | */ 49 | def checkerFunc(fn: CheckerFn): Crypto.Func[(PubKeyAndSignature, ByteVector), Unit] = 50 | Kleisli { 51 | case (pks, msg) ⇒ 52 | fn(pks.publicKey).check.run(pks.signature -> msg) 53 | } 54 | 55 | } 56 | -------------------------------------------------------------------------------- /hashsign/src/test/scala/fluence/crypto/HashSpec.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import fluence.crypto.hash.CryptoHashers 21 | import org.scalatest.{Matchers, WordSpec} 22 | import scodec.bits.ByteVector 23 | 24 | class HashSpec extends WordSpec with Matchers { 25 | "jvm hasher" should { 26 | //test values get from third-party hash services 27 | "work with sha256" in { 28 | val str = "sha256Tester" 29 | val sha256TesterHex = "513c17f8cf6ba96ce412cc2ae82f68821e9a2c6ae7a2fb1f5e46d08c387c8e65" 30 | 31 | val hasher = CryptoHashers.Sha256 32 | ByteVector(hasher(str.getBytes()).right.get).toHex shouldBe sha256TesterHex 33 | } 34 | 35 | "work with sha1" in { 36 | val str = "sha1Tester" 37 | val sha1TesterHex = "879db20eabcecea7d4736a8bae5bc64564b76b2f" 38 | 39 | val hasher = CryptoHashers.Sha1 40 | ByteVector(hasher(str.getBytes()).right.get).toHex shouldBe sha1TesterHex 41 | } 42 | 43 | "check unsigned array with sha1" in { 44 | 45 | val arr = Array[Byte](3, -9, -31, 48, 10, 125, 51, -39, -20, -125, 123, 61, -36, 49, 76, 90, -16, 54, -61, 62, 50, 46 | -116, -37, -88, -125, -32, -105, 120, 118, 13, -37, 33, -36) 47 | 48 | val base64Check = "9keNwsj08vKTlwIpHAEYvsfpdP4=" 49 | 50 | val hasher = CryptoHashers.Sha1 51 | 52 | ByteVector(hasher(arr).right.get).toBase64 shouldBe base64Check 53 | } 54 | } 55 | } 56 | -------------------------------------------------------------------------------- /hashsign/js/src/main/scala/fluence/crypto/facade/ecdsa/Elliptic.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.facade.ecdsa 19 | 20 | import scala.scalajs.js 21 | import scala.scalajs.js.annotation._ 22 | import scala.scalajs.js.typedarray.Uint8Array 23 | 24 | //TODO hide enc argument in methods, make it `hex` by default 25 | /** 26 | * https://github.com/indutny/elliptic - fast elliptic-curve cryptography in a plain javascript implementation 27 | */ 28 | @js.native 29 | @JSImport("elliptic", "ec") 30 | class EC(curve: String) extends js.Object { 31 | def genKeyPair(options: Option[js.Dynamic] = None): KeyPair = js.native 32 | def keyPair(options: js.Dynamic): KeyPair = js.native 33 | def keyFromPublic(pub: String, enc: String): KeyPair = js.native 34 | def keyFromPrivate(priv: String, enc: String): KeyPair = js.native 35 | } 36 | 37 | @js.native 38 | @JSImport("elliptic", "ec") 39 | class KeyPair(ec: EC, options: js.Dynamic) extends js.Object { 40 | def verify(msg: Uint8Array, signature: String): Boolean = js.native 41 | def sign(msg: Uint8Array): Signature = js.native 42 | 43 | def getPublic(compact: Boolean, enc: String): String = js.native 44 | def getPrivate(enc: String): String = js.native 45 | val priv: js.Any = js.native 46 | val pub: js.Any = js.native 47 | } 48 | 49 | @js.native 50 | @JSImport("elliptic", "ec") 51 | class Signature(der: String, enc: String = "hex") extends js.Object { 52 | def toDER(enc: String): String = js.native 53 | } 54 | -------------------------------------------------------------------------------- /core/src/main/scala/fluence/crypto/DumbCrypto.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import java.security.SecureRandom 21 | 22 | import cats.data.Kleisli 23 | import fluence.crypto.signature.{SignAlgo, Signature, SignatureChecker, Signer} 24 | import cats.syntax.either._ 25 | import scodec.bits.ByteVector 26 | 27 | import scala.language.higherKinds 28 | 29 | object DumbCrypto { 30 | 31 | lazy val signAlgo: SignAlgo = 32 | SignAlgo( 33 | "dumb", 34 | Kleisli[Crypto.Result, Option[Array[Byte]], KeyPair] { seedOpt ⇒ 35 | val seed = seedOpt.getOrElse { 36 | new SecureRandom().generateSeed(32) 37 | } 38 | KeyPair.fromBytes(seed, seed).asRight 39 | }, 40 | keyPair ⇒ 41 | Signer( 42 | keyPair.publicKey, 43 | Kleisli[Crypto.Result, ByteVector, Signature](plain ⇒ Signature(plain.reverse).asRight) 44 | ), 45 | publicKey ⇒ 46 | SignatureChecker( 47 | Kleisli { 48 | case (sgn, msg) ⇒ Either.cond(sgn.sign == msg.reverse, (), CryptoError("Signatures mismatch")) 49 | } 50 | ) 51 | ) 52 | 53 | lazy val cipherString: Crypto.Cipher[String] = 54 | Crypto.Cipher( 55 | Kleisli[Crypto.Result, String, Array[Byte]](_.getBytes.asRight[CryptoError]), 56 | Kleisli[Crypto.Result, Array[Byte], String](bytes ⇒ new String(bytes).asRight[CryptoError]) 57 | ) 58 | 59 | lazy val noOpHasher: Crypto.Hasher[Array[Byte], Array[Byte]] = 60 | Kleisli[Crypto.Result, Array[Byte], Array[Byte]](_.asRight) 61 | 62 | lazy val testHasher: Crypto.Hasher[Array[Byte], Array[Byte]] = 63 | Kleisli[Crypto.Result, Array[Byte], Array[Byte]](bytes ⇒ ("H<" + new String(bytes) + ">").getBytes().asRight) 64 | } 65 | -------------------------------------------------------------------------------- /hashsign/js/src/main/scala/fluence/crypto/hash/JsCryptoHasher.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.hash 19 | 20 | import cats.instances.either._ 21 | import cats.syntax.either._ 22 | import fluence.crypto.{Crypto, CryptoError} 23 | import fluence.crypto.facade.ecdsa.{SHA1, SHA256} 24 | import scodec.bits.ByteVector 25 | 26 | import scala.language.higherKinds 27 | import scala.scalajs.js 28 | import scala.scalajs.js.JSConverters._ 29 | import scala.scalajs.js.typedarray.Uint8Array 30 | 31 | object JsCryptoHasher { 32 | 33 | lazy val Sha256: Crypto.Hasher[Array[Byte], Array[Byte]] = 34 | Crypto.tryFn[Array[Byte], Array[Byte]] { msg ⇒ 35 | val sha256 = new SHA256() 36 | sha256.update(new Uint8Array(msg.toJSArray)) 37 | ByteVector.fromValidHex(sha256.digest("hex")).toArray 38 | }("Cannot calculate Sha256 hash") 39 | 40 | lazy val Sha1: Crypto.Hasher[Array[Byte], Array[Byte]] = 41 | Crypto.tryFn[Array[Byte], Array[Byte]] { msg ⇒ 42 | val sha1 = new SHA1() 43 | sha1.update(new Uint8Array(msg.toJSArray)) 44 | ByteVector.fromValidHex(sha1.digest("hex")).toArray 45 | }("Cannot calculate Sha256 hash") 46 | 47 | /** 48 | * Calculates hash of message. 49 | * 50 | * @return hash in Scala array 51 | */ 52 | val hash: Crypto.Func[(ByteVector, Option[Crypto.Hasher[Array[Byte], Array[Byte]]]), Array[Byte]] = 53 | Crypto { 54 | case (message, hasher) ⇒ 55 | val arr = message.toArray 56 | hasher 57 | .fold(arr.asRight[CryptoError]) { h ⇒ 58 | h(arr) 59 | } 60 | } 61 | 62 | /** 63 | * Calculates hash of message. 64 | * 65 | * @return hash in JS array 66 | */ 67 | val hashJs: Crypto.Func[(ByteVector, Option[Crypto.Hasher[Array[Byte], Array[Byte]]]), js.Array[Byte]] = 68 | hash 69 | .map(_.toJSArray) 70 | } 71 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | [![Build Status](https://travis-ci.org/fluencelabs/crypto.svg?branch=master)](https://travis-ci.org/fluencelabs/crypto) 2 | 3 | # Сrypto 4 | 5 | Cryptography for Scala and Scala.js, FP-flavoured. 6 | 7 | APIs are mostly based on [codec](https://github.com/fluencelabs/codec) approach with partial bijections, using `CryptoError` case class for errors. 8 | 9 | ## Submodules 10 | 11 | ### crypto-core 12 | 13 | Provides APIs and data types for various cryptographical operations, but without implementations. 14 | 15 | This library should be added as dependency to both implementations of crypto algorithms and on the user side, if particular app doesn't require a particular algorithm. 16 | 17 | ### crypto-hashsign 18 | 19 | Cross-platform hashing and signing algos. 20 | 21 | Use a `fluence.crypto.hash.CryptoHashers` to access a hashing algorithm. Currently `Sha1` and `Sha256` are provided. 22 | 23 | `fluence.crypto.ecdsa.Ecdsa.signAlgo` is an instance of `SignAlgo` with `ecdsa_secp256k1_sha256` under the hood. 24 | 25 | ### crypto-cipher 26 | 27 | Encryption and decryption algorithms, coded as arrows and bijections. Currently contains `AES` ciphering. 28 | 29 | ### crypto-keystore 30 | 31 | Provides a JSON format for serializing a keypair, using `codec-circe` for JSON processing. 32 | 33 | For Scala on JVM, storing on the disc is implemented with use of `cats-effect`. 34 | 35 | ### crypto-jwt 36 | 37 | Simplified JWT implementation, meaning a JSON-serialized header and claim with signature checking. 38 | 39 | `codec-circe` is used for JSON encoding/decoding, and `codec-bits` for binary data manipulations. 40 | 41 | ## Installation 42 | 43 | ```scala 44 | // Bintray repo is used so far. Migration to Maven Central is planned 45 | resolvers += Resolver.bintrayRepo("fluencelabs", "releases") 46 | 47 | val cryptoV = "0.0.3" 48 | 49 | libraryDependencies ++= Seq( 50 | "one.fluence" %%% "crypto-core" % cryptoV, // basic types and APIs 51 | "one.fluence" %%% "crypto-hashsign" % cryptoV, // hashers and signatures 52 | "one.fluence" %%% "crypto-cipher" % cryptoV, // encoding and decoding 53 | "one.fluence" %%% "crypto-keystore" % cryptoV, // serialize and store a keypair 54 | "one.fluence" %%% "crypto-jwt" % cryptoV // simple JWT implementation 55 | ) 56 | ``` 57 | 58 | ## License 59 | 60 | Fluence is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License v3 (AGPLv3) as published by the Free Software Foundation. 61 | 62 | Fluence includes some [external modules](https://github.com/fluencelabs/crypto/blob/master/build.sbt) that carry their own licensing. -------------------------------------------------------------------------------- /core/src/main/scala/fluence/crypto/cipher/CipherSearch.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.cipher 19 | 20 | import cats.Monad 21 | import cats.data.Kleisli 22 | import fluence.crypto.Crypto 23 | import cats.instances.either._ 24 | import cats.syntax.either._ 25 | 26 | import scala.collection.Searching.{Found, InsertionPoint, SearchResult} 27 | import scala.language.higherKinds 28 | 29 | object CipherSearch { 30 | 31 | /** 32 | * Searches the specified indexedSeq for the search element using the binary search algorithm. 33 | * The sequence should be sorted with the same `Ordering` before calling, otherwise, the results are undefined. 34 | * 35 | * @param coll Ordered collection of encrypted elements to search in. 36 | * @param decrypt Decryption function for sequence elements. 37 | * @param ordering The ordering to be used to compare elements. 38 | * 39 | * @return A `Found` value containing the index corresponding to the search element in the 40 | * sequence. A `InsertionPoint` value containing the index where the element would be inserted if 41 | * the search element is not found in the sequence. 42 | */ 43 | def binarySearch[A, B](coll: IndexedSeq[A], decrypt: Crypto.Func[A, B])( 44 | implicit ordering: Ordering[B] 45 | ): Crypto.Func[B, SearchResult] = 46 | Kleisli { input ⇒ 47 | { 48 | implicitly[Monad[Crypto.Result]].tailRecM((0, coll.length)) { 49 | case (from, to) if from == to ⇒ Right(InsertionPoint(from)).asRight 50 | case (from, to) ⇒ 51 | val idx = from + (to - from - 1) / 2 52 | decrypt(coll(idx)).map { d ⇒ 53 | math.signum(ordering.compare(input, d)) match { 54 | case -1 ⇒ Left((from, idx)) 55 | case 1 ⇒ Left((idx + 1, to)) 56 | case _ ⇒ Right(Found(idx)) 57 | } 58 | } 59 | } 60 | } 61 | } 62 | } 63 | -------------------------------------------------------------------------------- /cipher/jvm/src/test/scala/fluence/crypto/AesSpec.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import fluence.crypto.aes.{AesConfig, AesCrypt} 21 | import org.scalactic.source.Position 22 | import org.scalatest.{Assertion, Matchers, WordSpec} 23 | import scodec.bits.ByteVector 24 | 25 | import scala.util.{Random, Try} 26 | 27 | class AesSpec extends WordSpec with Matchers with slogging.LazyLogging { 28 | 29 | def rndString(size: Int): String = Random.nextString(10) 30 | val conf = AesConfig() 31 | 32 | "aes crypto" should { 33 | "work with IV" in { 34 | 35 | val pass = ByteVector("pass".getBytes()) 36 | val crypt = AesCrypt.build(pass, withIV = true, config = conf) 37 | 38 | val str = rndString(200).getBytes 39 | val crypted = crypt.encrypt(str).right.get 40 | crypt.decrypt(crypted).right.get shouldBe str 41 | val fakeAes = AesCrypt.build(ByteVector("wrong".getBytes()), withIV = true, config = conf) 42 | checkCryptoError(fakeAes.decrypt(crypted)) 43 | 44 | //we cannot check if first bytes is iv or already data, but encryption goes wrong 45 | val aesWithoutIV = AesCrypt.build(pass, withIV = false, config = conf) 46 | aesWithoutIV.decrypt(crypted).right.get shouldNot be(str) 47 | 48 | val aesWrongSalt = AesCrypt.build(pass, withIV = true, config = conf.copy(salt = rndString(10))) 49 | checkCryptoError(aesWrongSalt.decrypt(crypted)) 50 | } 51 | 52 | "work without IV" in { 53 | val pass = ByteVector("pass".getBytes()) 54 | val crypt = AesCrypt.build(pass, withIV = false, config = conf) 55 | 56 | val str = rndString(200).getBytes() 57 | val crypted = crypt.encrypt(str).right.get 58 | crypt.decrypt(crypted).right.get shouldBe str 59 | 60 | val fakeAes = AesCrypt.build(ByteVector("wrong".getBytes()), withIV = false, config = conf) 61 | checkCryptoError(fakeAes.decrypt(crypted)) 62 | 63 | //we cannot check if first bytes is iv or already data, but encryption goes wrong 64 | val aesWithIV = AesCrypt.build(pass, withIV = true, config = conf) 65 | aesWithIV.decrypt(crypted).right.get shouldNot be(str) 66 | 67 | val aesWrongSalt = AesCrypt.build(pass, withIV = true, config = conf.copy(salt = rndString(10))) 68 | checkCryptoError(aesWrongSalt.decrypt(crypted)) 69 | } 70 | } 71 | 72 | def checkCryptoError(tr: Crypto.Result[Array[Byte]])(implicit pos: Position): Assertion = { 73 | tr.isLeft shouldBe true 74 | } 75 | 76 | } 77 | -------------------------------------------------------------------------------- /hashsign/src/test/scala/fluence/crypto/EcdsaSpec.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import fluence.crypto.ecdsa.Ecdsa 21 | import fluence.crypto.signature.{SignAlgo, Signature} 22 | import org.scalatest.{Matchers, WordSpec} 23 | import scodec.bits.ByteVector 24 | 25 | import scala.util.{Random, Try} 26 | 27 | class EcdsaSpec extends WordSpec with Matchers { 28 | 29 | def rndBytes(size: Int): Array[Byte] = Random.nextString(10).getBytes 30 | 31 | def rndByteVector(size: Int) = ByteVector(rndBytes(size)) 32 | 33 | "ecdsa algorithm" should { 34 | "correct sign and verify data" in { 35 | val algorithm: SignAlgo = Ecdsa.signAlgo 36 | 37 | val keys = algorithm.generateKeyPair(None).right.get 38 | val pubKey = keys.publicKey 39 | val data = rndByteVector(10) 40 | val sign = algorithm.signer(keys).sign(data).right.get 41 | 42 | algorithm.checker(pubKey).check((sign, data)).isRight shouldBe true 43 | 44 | val randomData = rndByteVector(10) 45 | val randomSign = algorithm.signer(keys).sign(randomData).right.get 46 | 47 | algorithm.checker(pubKey).check(randomSign -> data).isRight shouldBe false 48 | 49 | algorithm.checker(pubKey).check(sign -> randomData).isRight shouldBe false 50 | } 51 | 52 | "correctly work with signer and checker" in { 53 | val algo: SignAlgo = Ecdsa.signAlgo 54 | val keys = algo.generateKeyPair(None).right.get 55 | val signer = algo.signer(keys) 56 | val checker = algo.checker(keys.publicKey) 57 | 58 | val data = rndByteVector(10) 59 | val sign = signer.sign(data).right.get 60 | 61 | checker.check(sign -> data).isRight shouldBe true 62 | 63 | val randomSign = signer.sign(rndByteVector(10)).right.get 64 | checker.check(randomSign -> data).isRight shouldBe false 65 | } 66 | 67 | "throw an errors on invalid data" in { 68 | val algo: SignAlgo = Ecdsa.signAlgo 69 | val keys = algo.generateKeyPair(None).right.get 70 | val signer = algo.signer(keys) 71 | val checker = algo.checker(keys.publicKey) 72 | val data = rndByteVector(10) 73 | 74 | val sign = signer.sign(data).right.get 75 | 76 | the[CryptoError] thrownBy { 77 | checker.check(Signature(rndByteVector(10)) -> data).toTry.get 78 | } 79 | val invalidChecker = algo.checker(KeyPair.fromByteVectors(rndByteVector(10), rndByteVector(10)).publicKey) 80 | the[CryptoError] thrownBy { 81 | invalidChecker 82 | .check(sign -> data) 83 | .toTry 84 | .get 85 | } 86 | } 87 | } 88 | } 89 | -------------------------------------------------------------------------------- /hashsign/src/test/scala/fluence/crypto/Ed25519Spec.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import fluence.crypto.eddsa.Ed25519 21 | import fluence.crypto.signature.{SignAlgo, Signature} 22 | import org.scalatest.{Matchers, WordSpec} 23 | import scodec.bits.ByteVector 24 | 25 | import scala.util.{Random, Try} 26 | 27 | class Ed25519Spec extends WordSpec with Matchers { 28 | 29 | def rndBytes(size: Int): Array[Byte] = Random.nextString(10).getBytes 30 | 31 | def rndByteVector(size: Int) = ByteVector(rndBytes(size)) 32 | 33 | "ed25519 algorithm" should { 34 | "correct sign and verify data" in { 35 | val algorithm: SignAlgo = Ed25519.signAlgo 36 | 37 | val keys = algorithm.generateKeyPair(None).right.get 38 | val pubKey = keys.publicKey 39 | val data = rndByteVector(10) 40 | val sign = algorithm.signer(keys).sign(data).right.get 41 | 42 | algorithm.checker(pubKey).check(sign -> data).isRight shouldBe true 43 | 44 | val randomData = rndByteVector(10) 45 | val randomSign = algorithm.signer(keys).sign(randomData).right.get 46 | 47 | algorithm.checker(pubKey).check(randomSign -> data).contains(true) shouldBe false 48 | 49 | algorithm.checker(pubKey).check(sign -> randomData).contains(true) shouldBe false 50 | } 51 | 52 | "correctly work with signer and checker" in { 53 | val algo: SignAlgo = Ed25519.signAlgo 54 | val keys = algo.generateKeyPair(None).right.get 55 | val signer = algo.signer(keys) 56 | val checker = algo.checker(keys.publicKey) 57 | 58 | val data = rndByteVector(10) 59 | val sign = signer.sign(data).right.get 60 | 61 | checker.check(sign -> data).isRight shouldBe true 62 | 63 | val randomSign = signer.sign(rndByteVector(10)).right.get 64 | checker.check(randomSign, data).contains(true) shouldBe false 65 | } 66 | 67 | "throw an errors on invalid data" in { 68 | val algo: SignAlgo = Ed25519.signAlgo 69 | val keys = algo.generateKeyPair(None).right.get 70 | val signer = algo.signer(keys) 71 | val checker = algo.checker(keys.publicKey) 72 | val data = rndByteVector(10) 73 | 74 | val sign = signer.sign(data).right.get 75 | 76 | the[CryptoError] thrownBy { 77 | checker.check(Signature(rndByteVector(10)), data).toTry.get 78 | } 79 | val invalidChecker = algo.checker(KeyPair.fromByteVectors(rndByteVector(10), rndByteVector(10)).publicKey) 80 | the[CryptoError] thrownBy { 81 | invalidChecker 82 | .check(sign, data) 83 | .toTry 84 | .get 85 | } 86 | } 87 | } 88 | } 89 | -------------------------------------------------------------------------------- /cipher/js/src/test/scala/fluence/crypto/AesJSSpec.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto 19 | 20 | import fluence.crypto.aes.{AesConfig, AesCrypt} 21 | import org.scalactic.source.Position 22 | import org.scalatest.{Assertion, Matchers, WordSpec} 23 | import scodec.bits.ByteVector 24 | 25 | import scala.util.{Random, Try} 26 | 27 | class AesJSSpec extends WordSpec with Matchers with slogging.LazyLogging { 28 | 29 | def rndString(size: Int): String = Random.nextString(10) 30 | 31 | val conf = AesConfig() 32 | 33 | // TODO: use properties testing 34 | "aes crypto" should { 35 | "work with IV" in { 36 | val pass = ByteVector("pass".getBytes()) 37 | val crypt = AesCrypt.build(pass, withIV = true, config = conf) 38 | 39 | val str = rndString(200).getBytes() 40 | val crypted = crypt.encrypt(str).right.get 41 | crypt.decrypt(crypted).right.get shouldBe str 42 | 43 | val fakeAes = AesCrypt.build(ByteVector("wrong".getBytes()), withIV = true, config = conf) 44 | checkCryptoError(fakeAes.decrypt(crypted), str) 45 | 46 | //we cannot check if first bytes is iv or already data, but encryption goes wrong 47 | val aesWithoutIV = AesCrypt.build(pass, withIV = false, config = conf) 48 | aesWithoutIV.decrypt(crypted).right.get shouldNot be(str) 49 | 50 | val aesWrongSalt = AesCrypt.build(pass, withIV = true, config = conf.copy(salt = rndString(10))) 51 | checkCryptoError(aesWrongSalt.decrypt(crypted), str) 52 | } 53 | 54 | "work without IV" in { 55 | val pass = ByteVector("pass".getBytes()) 56 | val crypt = AesCrypt.build(pass, withIV = false, config = conf) 57 | 58 | val str = rndString(200).getBytes() 59 | val crypted = crypt.encrypt(str).right.get 60 | crypt.decrypt(crypted).right.get shouldBe str 61 | 62 | val fakeAes = AesCrypt.build(ByteVector("wrong".getBytes()), withIV = false, config = conf) 63 | checkCryptoError(fakeAes.decrypt(crypted), str) 64 | 65 | //we cannot check if first bytes is iv or already data, but encryption goes wrong 66 | val aesWithIV = AesCrypt.build(pass, withIV = true, config = conf) 67 | aesWithIV.decrypt(crypted).right.get shouldNot be(str) 68 | 69 | val aesWrongSalt = AesCrypt.build(pass, withIV = false, config = conf.copy(salt = rndString(10))) 70 | checkCryptoError(aesWrongSalt.decrypt(crypted), str) 71 | } 72 | 73 | /** 74 | * Checks if there is a crypto error or result is not equal with source result. 75 | */ 76 | def checkCryptoError(tr: Crypto.Result[Array[Byte]], msg: Array[Byte])(implicit pos: Position): Assertion = { 77 | tr.map { r ⇒ 78 | !(r sameElements msg) 79 | }.fold( 80 | _ ⇒ true, 81 | res => res 82 | ) shouldBe true 83 | } 84 | } 85 | } 86 | -------------------------------------------------------------------------------- /hashsign/js/src/main/scala/fluence/crypto/eddsa/Ed25519.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.eddsa 19 | 20 | import fluence.crypto.facade.ed25519.Supercop 21 | import fluence.crypto.hash.JsCryptoHasher 22 | import fluence.crypto.{Crypto, CryptoError, CryptoJsHelpers, KeyPair} 23 | import fluence.crypto.signature.{SignAlgo, Signature, SignatureChecker, Signer} 24 | import scodec.bits.ByteVector 25 | 26 | import scala.language.higherKinds 27 | 28 | class Ed25519(hasher: Option[Crypto.Hasher[Array[Byte], Array[Byte]]]) { 29 | 30 | import CryptoJsHelpers._ 31 | 32 | val sign: Crypto.Func[(KeyPair, ByteVector), Signature] = 33 | Crypto { 34 | case (keyPair, message) ⇒ 35 | for { 36 | hash ← JsCryptoHasher.hash(message, hasher) 37 | sign ← Crypto.tryUnit { 38 | Supercop.sign( 39 | ByteVector(hash).toJsBuffer, 40 | keyPair.publicKey.value.toJsBuffer, 41 | keyPair.secretKey.value.toJsBuffer 42 | ) 43 | }("Error on signing message by js/ed25519 signature") 44 | } yield Signature(ByteVector.fromValidHex(sign.toString("hex"))) 45 | } 46 | 47 | val verify: Crypto.Func[(KeyPair.Public, Signature, ByteVector), Unit] = 48 | Crypto { 49 | case ( 50 | pubKey, 51 | signature, 52 | message 53 | ) ⇒ 54 | for { 55 | hash ← JsCryptoHasher.hash(message, hasher) 56 | verify ← Crypto.tryUnit( 57 | Supercop.verify(signature.sign.toJsBuffer, ByteVector(hash).toJsBuffer, pubKey.value.toJsBuffer) 58 | )("Cannot verify message") 59 | _ ← Either.cond(verify, (), CryptoError("Signature is not verified")) 60 | } yield () 61 | } 62 | 63 | val generateKeyPair: Crypto.KeyPairGenerator = 64 | Crypto[Option[Array[Byte]], KeyPair] { input ⇒ 65 | for { 66 | seed ← Crypto.tryUnit(input.map(ByteVector(_).toJsBuffer).getOrElse(Supercop.createSeed()))( 67 | "Error on seed creation" 68 | ) 69 | jsKeyPair ← Crypto.tryUnit(Supercop.createKeyPair(seed))("Error on key pair generation.") 70 | keyPair ← Crypto.tryUnit( 71 | KeyPair.fromByteVectors( 72 | ByteVector.fromValidHex(jsKeyPair.publicKey.toString("hex")), 73 | ByteVector.fromValidHex(jsKeyPair.secretKey.toString("hex")) 74 | ) 75 | )("Error on decoding public and secret keys") 76 | } yield keyPair 77 | } 78 | } 79 | 80 | object Ed25519 { 81 | 82 | val ed25519: Ed25519 = new Ed25519(None) 83 | 84 | val signAlgo: SignAlgo = 85 | SignAlgo( 86 | name = "ed25519", 87 | generateKeyPair = ed25519.generateKeyPair, 88 | signer = kp ⇒ 89 | Signer( 90 | kp.publicKey, 91 | ed25519.sign.local(kp -> _) 92 | ), 93 | checker = pk ⇒ 94 | SignatureChecker( 95 | ed25519.verify.local { 96 | case (signature, plain) ⇒ (pk, signature, plain) 97 | } 98 | ) 99 | ) 100 | 101 | } 102 | -------------------------------------------------------------------------------- /hashsign/js/src/main/scala/fluence/crypto/ecdsa/Ecdsa.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.ecdsa 19 | 20 | import fluence.crypto._ 21 | import fluence.crypto.facade.ecdsa.EC 22 | import fluence.crypto.hash.JsCryptoHasher 23 | import fluence.crypto.signature.{SignAlgo, Signature, SignatureChecker, Signer} 24 | import scodec.bits.ByteVector 25 | 26 | import scala.language.higherKinds 27 | import scala.scalajs.js 28 | import scala.scalajs.js.JSConverters._ 29 | import scala.scalajs.js.typedarray.Uint8Array 30 | 31 | /** 32 | * Return in all js methods hex, because in the other case we will receive javascript objects 33 | * @param ec implementation of ecdsa logic for different curves 34 | */ 35 | class Ecdsa(ec: EC, hasher: Option[Crypto.Hasher[Array[Byte], Array[Byte]]]) { 36 | 37 | /** 38 | * Restores key pair by secret key. 39 | * 40 | */ 41 | val restoreKeyPair: Crypto.Func[KeyPair.Secret, KeyPair] = 42 | Crypto.tryFn[KeyPair.Secret, KeyPair] { secretKey ⇒ 43 | val key = ec.keyFromPrivate(secretKey.value.toHex, "hex") 44 | val publicHex = key.getPublic(compact = true, "hex") 45 | val secretHex = key.getPrivate("hex") 46 | val public = ByteVector.fromValidHex(publicHex) 47 | val secret = ByteVector.fromValidHex(secretHex) 48 | KeyPair.fromByteVectors(public, secret) 49 | }("Incorrect secret key format") 50 | 51 | val generateKeyPair: Crypto.KeyPairGenerator = 52 | Crypto.tryFn[Option[Array[Byte]], KeyPair] { input ⇒ 53 | val seedJs = input.map(bs ⇒ js.Dynamic.literal(entropy = bs.toJSArray)) 54 | val key = ec.genKeyPair(seedJs) 55 | val publicHex = key.getPublic(compact = true, "hex") 56 | val secretHex = key.getPrivate("hex") 57 | val public = ByteVector.fromValidHex(publicHex) 58 | val secret = ByteVector.fromValidHex(secretHex) 59 | KeyPair.fromByteVectors(public, secret) 60 | }("Failed to generate key pair") 61 | 62 | val sign: Crypto.Func[(KeyPair, ByteVector), Signature] = 63 | Crypto { 64 | case (keyPair: KeyPair, message: ByteVector) ⇒ 65 | for { 66 | secret ← Crypto.tryUnit { 67 | ec.keyFromPrivate(keyPair.secretKey.value.toHex, "hex") 68 | }("Cannot get private key from key pair") 69 | hash ← JsCryptoHasher.hashJs(message, hasher) 70 | signHex ← Crypto.tryUnit(secret.sign(new Uint8Array(hash)).toDER("hex"))("Cannot sign message") 71 | } yield Signature(ByteVector.fromValidHex(signHex)) 72 | } 73 | 74 | val verify: Crypto.Func[(KeyPair.Public, Signature, ByteVector), Unit] = 75 | Crypto { 76 | case ( 77 | pubKey, 78 | signature, 79 | message 80 | ) ⇒ 81 | for { 82 | public ← Crypto.tryUnit { 83 | val hex = pubKey.value.toHex 84 | ec.keyFromPublic(hex, "hex") 85 | }("Incorrect public key format.") 86 | hash ← JsCryptoHasher.hashJs(message, hasher) 87 | verify ← Crypto.tryUnit(public.verify(new Uint8Array(hash), signature.sign.toHex))("Cannot verify message") 88 | _ ← Either.cond(verify, (), CryptoError("Signature is not verified")) 89 | } yield () 90 | } 91 | 92 | } 93 | 94 | object Ecdsa { 95 | val ecdsa_secp256k1_sha256 = new Ecdsa(new EC("secp256k1"), Some(JsCryptoHasher.Sha256)) 96 | 97 | val signAlgo: SignAlgo = SignAlgo( 98 | "ecdsa/secp256k1/sha256/js", 99 | generateKeyPair = ecdsa_secp256k1_sha256.generateKeyPair, 100 | signer = kp ⇒ 101 | Signer( 102 | kp.publicKey, 103 | ecdsa_secp256k1_sha256.sign.local(kp -> _) 104 | ), 105 | checker = pk ⇒ 106 | SignatureChecker( 107 | ecdsa_secp256k1_sha256.verify.local { 108 | case (signature, plain) ⇒ (pk, signature, plain) 109 | } 110 | ) 111 | ) 112 | } 113 | -------------------------------------------------------------------------------- /cipher/js/src/main/scala/fluence/crypto/aes/AesCrypt.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.aes 19 | 20 | import fluence.crypto.facade.cryptojs.{CryptOptions, CryptoJS, Key, KeyOptions} 21 | import fluence.crypto.{Crypto, CryptoError} 22 | import scodec.bits.ByteVector 23 | 24 | import scala.language.higherKinds 25 | import scala.scalajs.js.JSConverters._ 26 | import scala.scalajs.js.typedarray.Int8Array 27 | 28 | class AesCrypt(password: Array[Char], withIV: Boolean, config: AesConfig) { 29 | 30 | private val salt = config.salt 31 | 32 | private val rndStr = CryptoJS.lib.WordArray 33 | 34 | //number of password hashing iterations 35 | private val iterationCount = config.iterationCount 36 | //initialisation vector must be the same length as block size 37 | private val IV_SIZE = 16 38 | private val BITS = 256 39 | //generate IV in hex 40 | private def generateIV = rndStr.random(IV_SIZE) 41 | 42 | private val pad = CryptoJS.pad.Pkcs7 43 | private val mode = CryptoJS.mode.CBC 44 | private val aes = CryptoJS.AES 45 | 46 | /** 47 | * Encrypt data. 48 | * data Data to encrypt 49 | * key Salted and hashed password 50 | * @return Encrypted data with IV 51 | */ 52 | private val encryptData = 53 | Crypto.tryFn[(Array[Byte], Key), Array[Byte]] { 54 | case (data: Array[Byte], key: Key) ⇒ 55 | //transform data to JS type 56 | val wordArray = CryptoJS.lib.WordArray.create(new Int8Array(data.toJSArray)) 57 | val iv = if (withIV) Some(generateIV) else None 58 | val cryptOptions = CryptOptions(iv = iv, padding = pad, mode = mode) 59 | //encryption return base64 string, transform it to byte array 60 | val crypted = ByteVector.fromValidBase64(aes.encrypt(wordArray, key, cryptOptions).toString) 61 | //IV also needs to be transformed in byte array 62 | val byteIv = iv.map(i ⇒ ByteVector.fromValidHex(i.toString)) 63 | byteIv.map(_.toArray ++ crypted.toArray).getOrElse(crypted.toArray) 64 | }("Cannot encrypt data") 65 | 66 | private val decryptData: Crypto.Func[(Key, String, Option[String]), ByteVector] = 67 | Crypto.tryFn[(Key, String, Option[String]), ByteVector] { 68 | case (key: Key, base64Data: String, iv: Option[String]) ⇒ 69 | //parse IV to WordArray JS format 70 | val cryptOptions = CryptOptions(iv = iv.map(i ⇒ CryptoJS.enc.Hex.parse(i)), padding = pad, mode = mode) 71 | val dec = aes.decrypt(base64Data, key, cryptOptions) 72 | ByteVector.fromValidHex(dec.toString) 73 | }("Cannot decrypt data") 74 | 75 | /** 76 | * cipherText Encrypted data with IV 77 | * @return IV in hex and data in base64 78 | */ 79 | private val detachData: Crypto.Func[Array[Byte], (Option[String], String)] = 80 | Crypto.tryFn { cipherText: Array[Byte] ⇒ 81 | val dataWithParams = if (withIV) { 82 | val ivDec = ByteVector(cipherText.slice(0, IV_SIZE)).toHex 83 | val encMessage = cipherText.slice(IV_SIZE, cipherText.length) 84 | (Some(ivDec), encMessage) 85 | } else (None, cipherText) 86 | val (ivOp, data) = dataWithParams 87 | val base64 = ByteVector(data).toBase64 88 | (ivOp, base64) 89 | }("Cannot detach data and IV") 90 | 91 | /** 92 | * Hash password with salt `iterationCount` times 93 | */ 94 | private val initSecretKey: Crypto.Func[Unit, Key] = 95 | Crypto.tryFn { _: Unit ⇒ 96 | // get raw key from password and salt 97 | val keyOption = KeyOptions(BITS, iterations = iterationCount, hasher = CryptoJS.algo.SHA256) 98 | CryptoJS.PBKDF2(new String(password), salt, keyOption) 99 | }("Cannot init secret key") 100 | 101 | val decrypt: Crypto.Func[Array[Byte], Array[Byte]] = 102 | Crypto { input ⇒ 103 | for { 104 | detachedData ← detachData(input) 105 | (iv, base64) = detachedData 106 | key ← initSecretKey(()) 107 | decData ← decryptData((key, base64, iv)) 108 | _ ← Crypto[Boolean, Unit](Either.cond(_, (), CryptoError("Cannot decrypt message with this password.")))( 109 | decData.nonEmpty 110 | ) 111 | } yield decData.toArray 112 | } 113 | 114 | val encrypt: Crypto.Func[Array[Byte], Array[Byte]] = 115 | Crypto[Array[Byte], Array[Byte]] { input ⇒ 116 | for { 117 | key ← initSecretKey(()) 118 | encrypted ← encryptData(input -> key) 119 | } yield encrypted 120 | } 121 | } 122 | 123 | object AesCrypt { 124 | 125 | def build(password: ByteVector, withIV: Boolean, config: AesConfig): Crypto.Cipher[Array[Byte]] = { 126 | val aes = new AesCrypt(password.toHex.toCharArray, withIV, config) 127 | Crypto.Cipher(aes.encrypt, aes.decrypt) 128 | } 129 | 130 | } 131 | -------------------------------------------------------------------------------- /FluenceCLA.md: -------------------------------------------------------------------------------- 1 | Thank you for your interest in Fluence Labs projects. 2 | 3 | In order to clarify the intellectual property license 4 | granted with Contributions from any person or entity, Fluence Labs 5 | must have a Contributor License Agreement ("CLA") on file that has 6 | been signed by each Contributor, indicating agreement to the license 7 | terms below. 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You agree to notify Fluence Labs of any facts or circumstances of 107 | which you become aware that would make these representations 108 | inaccurate in any respect. 109 | 110 | -------------------------------------------------------------------------------- /hashsign/jvm/src/main/scala/fluence/crypto/eddsa/Ed25519.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.eddsa 19 | 20 | import java.security._ 21 | 22 | import cats.syntax.either._ 23 | import cats.instances.either._ 24 | import cats.syntax.functor._ 25 | import fluence.crypto.KeyPair.Secret 26 | import fluence.crypto.signature.{SignAlgo, SignatureChecker, Signer} 27 | import fluence.crypto.{KeyPair, _} 28 | import org.bouncycastle.crypto.{AsymmetricCipherKeyPair, KeyGenerationParameters} 29 | import org.bouncycastle.crypto.generators.Ed25519KeyPairGenerator 30 | import org.bouncycastle.crypto.params.{Ed25519PrivateKeyParameters, Ed25519PublicKeyParameters} 31 | import org.bouncycastle.crypto.signers.Ed25519Signer 32 | import scodec.bits.ByteVector 33 | 34 | import scala.language.higherKinds 35 | 36 | /** 37 | * Edwards-curve Digital Signature Algorithm (EdDSA) 38 | */ 39 | class Ed25519(strength: Int) extends JavaAlgorithm { 40 | 41 | /** 42 | * Restores pair of keys from the known secret key. 43 | * The public key will be the same each method call with the same secret key. 44 | * sk secret key 45 | * @return key pair 46 | */ 47 | val restorePairFromSecret: Crypto.Func[Secret, KeyPair] = 48 | Crypto.tryFn[Secret, KeyPair] { sk ⇒ 49 | val secret = new Ed25519PrivateKeyParameters(sk.bytes, 0) 50 | KeyPair.fromBytes(secret.generatePublicKey().getEncoded, sk.bytes) 51 | }("Could not generate KeyPair from private key") 52 | 53 | private val signMessage: Crypto.Func[(Array[Byte], Array[Byte]), Array[Byte]] = 54 | Crypto.tryFn[(Array[Byte], Array[Byte]), Array[Byte]] { 55 | case ( 56 | privateKey, 57 | message 58 | ) ⇒ 59 | val privKey = new Ed25519PrivateKeyParameters(privateKey, 0) 60 | val signer = new Ed25519Signer 61 | signer.init(true, privKey) 62 | signer.update(message, 0, message.length) 63 | signer.generateSignature() 64 | }("Cannot sign message") 65 | 66 | val sign: Crypto.Func[(KeyPair, ByteVector), signature.Signature] = 67 | signMessage 68 | .map(bb ⇒ fluence.crypto.signature.Signature(ByteVector(bb))) 69 | .local { 70 | case (keyPair, message) ⇒ 71 | keyPair.secretKey.bytes -> message.toArray 72 | } 73 | 74 | private val verifySign: Crypto.Func[(Array[Byte], Array[Byte], Array[Byte]), Unit] = 75 | Crypto.tryFn[(Array[Byte], Array[Byte], Array[Byte]), Boolean] { 76 | case ( 77 | publicKey, 78 | signature, 79 | message 80 | ) ⇒ 81 | val pubKey = new Ed25519PublicKeyParameters(publicKey, 0) 82 | val signer = new Ed25519Signer 83 | signer.init(false, pubKey) 84 | signer.update(message, 0, message.length) 85 | signer.verifySignature(signature) 86 | }("Cannot verify message") andThen Crypto.cond((), "Signature is not verified") 87 | 88 | val verify: Crypto.Func[(KeyPair.Public, signature.Signature, ByteVector), Unit] = 89 | verifySign.local { 90 | case ( 91 | publicKey, 92 | signature, 93 | message 94 | ) ⇒ 95 | (publicKey.bytes, signature.bytes, message.toArray) 96 | } 97 | 98 | private def getKeyPairGenerator = 99 | Crypto.tryUnit( 100 | new Ed25519KeyPairGenerator() 101 | )( 102 | "Cannot get key pair generator" 103 | ) 104 | 105 | val generateKeyPair: Crypto.KeyPairGenerator = 106 | Crypto[Option[Array[Byte]], KeyPair] { input ⇒ 107 | getKeyPairGenerator.flatMap { g ⇒ 108 | val random = input.map(new SecureRandom(_)).getOrElse(new SecureRandom()) 109 | val keyParameters = new KeyGenerationParameters(random, strength) 110 | g.init(keyParameters) 111 | Either.fromOption(Option(g.generateKeyPair()), CryptoError("Generated keypair is null")) 112 | }.flatMap( 113 | (p: AsymmetricCipherKeyPair) ⇒ 114 | Crypto.tryUnit { 115 | val pk = p.getPublic match { 116 | case pk: Ed25519PublicKeyParameters => pk.getEncoded 117 | case p => 118 | throw new ClassCastException(s"Cannot cast public key (${p.getClass}) to Ed25519PublicKeyParameters") 119 | } 120 | val sk = p.getPrivate match { 121 | case sk: Ed25519PrivateKeyParameters => sk.getEncoded 122 | case s => 123 | throw new ClassCastException(s"Cannot cast private key (${p.getClass}) to Ed25519PrivateKeyParameters") 124 | } 125 | KeyPair.fromBytes(pk, sk) 126 | }("Could not generate KeyPair") 127 | ) 128 | } 129 | } 130 | 131 | object Ed25519 { 132 | 133 | /** 134 | * Keys in tendermint are generating with a random seed of 32 bytes 135 | */ 136 | val ed25519 = new Ed25519(256) 137 | val signAlgo: SignAlgo = signAlgoInit(256) 138 | 139 | /** 140 | * 141 | * @param strength the size, in bits, of the keys we want to produce 142 | */ 143 | def ed25519Init(strength: Int) = new Ed25519(strength) 144 | 145 | /** 146 | * 147 | * @param strength the size, in bits, of the keys we want to produce 148 | */ 149 | def signAlgoInit(strength: Int): SignAlgo = { 150 | val algo = ed25519Init(strength) 151 | SignAlgo( 152 | name = "ed25519", 153 | generateKeyPair = algo.generateKeyPair, 154 | signer = kp ⇒ 155 | Signer( 156 | kp.publicKey, 157 | Crypto[ByteVector, signature.Signature] { input ⇒ 158 | algo.sign(kp -> input) 159 | } 160 | ), 161 | checker = pk ⇒ 162 | SignatureChecker( 163 | Crypto { 164 | case (signature, plain) ⇒ 165 | algo.verify(pk, signature, plain) 166 | } 167 | ) 168 | ) 169 | } 170 | } 171 | -------------------------------------------------------------------------------- /cipher/jvm/src/main/scala/fluence/crypto/aes/AesCrypt.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.aes 19 | 20 | import cats.instances.either._ 21 | import fluence.crypto.{Crypto, JavaAlgorithm} 22 | import org.bouncycastle.crypto.digests.SHA256Digest 23 | import org.bouncycastle.crypto.engines.AESEngine 24 | import org.bouncycastle.crypto.generators.PKCS5S2ParametersGenerator 25 | import org.bouncycastle.crypto.modes.CBCBlockCipher 26 | import org.bouncycastle.crypto.paddings.{PKCS7Padding, PaddedBufferedBlockCipher} 27 | import org.bouncycastle.crypto.params.{KeyParameter, ParametersWithIV} 28 | import org.bouncycastle.crypto.{CipherParameters, PBEParametersGenerator} 29 | import scodec.bits.ByteVector 30 | 31 | import scala.language.higherKinds 32 | import scala.util.Random 33 | 34 | case class DetachedData(ivData: Array[Byte], encData: Array[Byte]) 35 | case class DataWithParams(data: Array[Byte], params: CipherParameters) 36 | 37 | /** 38 | * PBEWithSHA256And256BitAES-CBC-BC cryptography 39 | * PBE - Password-based encryption 40 | * SHA256 - hash for password 41 | * AES with CBC BC - Advanced Encryption Standard with Cipher Block Chaining 42 | * https://ru.wikipedia.org/wiki/Advanced_Encryption_Standard 43 | * https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_(CBC) 44 | * @param password User entered password 45 | * @param withIV Initialization vector to achieve semantic security, a property whereby repeated usage of the scheme 46 | * under the same key does not allow an attacker to infer relationships between segments of the encrypted 47 | * message 48 | */ 49 | class AesCrypt(password: Array[Char], withIV: Boolean, config: AesConfig) extends JavaAlgorithm { 50 | 51 | private val rnd = Random 52 | private val salt = config.salt.getBytes() 53 | 54 | //number of password hashing iterations 55 | private val iterationCount = config.iterationCount 56 | //initialisation vector must be the same length as block size 57 | private val IV_SIZE = 16 58 | private val BITS = 256 59 | private def generateIV: Array[Byte] = { 60 | val iv = new Array[Byte](IV_SIZE) 61 | rnd.nextBytes(iv) 62 | iv 63 | } 64 | 65 | /** 66 | * Key spec initialization 67 | */ 68 | private val initSecretKey: Crypto.Func[( /*password*/ Array[Char], /*salt*/ Array[Byte]), Array[Byte]] = 69 | Crypto.tryFn[(Array[Char], Array[Byte]), Array[Byte]] { 70 | case (password, salt) ⇒ 71 | PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(password) 72 | }("Cannot init secret key") 73 | 74 | /** 75 | * Setup AES CBC cipher 76 | * encrypt: True for encryption and false for decryption 77 | * 78 | * @return cipher 79 | */ 80 | private val setupAesCipher: Crypto.Func[(CipherParameters, Boolean), PaddedBufferedBlockCipher] = 81 | Crypto.tryFn[(CipherParameters, Boolean), PaddedBufferedBlockCipher] { 82 | case (params, encrypt) ⇒ 83 | // setup AES cipher in CBC mode with PKCS7 padding 84 | val padding = new PKCS7Padding 85 | val cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine), padding) 86 | cipher.reset() 87 | cipher.init(encrypt, params) 88 | 89 | cipher 90 | }("Cannot setup aes cipher") 91 | 92 | private val cipherBytes: Crypto.Func[(Array[Byte], PaddedBufferedBlockCipher), Array[Byte]] = 93 | Crypto.tryFn[(Array[Byte], PaddedBufferedBlockCipher), Array[Byte]] { 94 | case (data, cipher) ⇒ 95 | // create a temporary buffer to decode into (it'll include padding) 96 | val buf = new Array[Byte](cipher.getOutputSize(data.length)) 97 | val outputLength = cipher.processBytes(data, 0, data.length, buf, 0) 98 | val lastBlockLength = cipher.doFinal(buf, outputLength) 99 | //remove padding 100 | buf.slice(0, outputLength + lastBlockLength) 101 | }("Error in cipher processing") 102 | 103 | /** 104 | * 105 | * dataWithParams Cata with cipher parameters 106 | * addData Additional data (nonce) 107 | * encrypt True for encryption and false for decryption 108 | * @return Crypted bytes 109 | */ 110 | private val processData: Crypto.Func[(DataWithParams, Option[Array[Byte]], Boolean), Array[Byte]] = 111 | Crypto { 112 | case (dataWithParams, addData, encrypt) ⇒ 113 | for { 114 | cipher ← setupAesCipher(dataWithParams.params -> encrypt) 115 | buf ← cipherBytes(dataWithParams.data, cipher) 116 | } yield addData.map(_ ++ buf).getOrElse(buf) 117 | } 118 | 119 | /** 120 | * encrypted data = initialization vector + data 121 | */ 122 | private val detachIV: Crypto.Func[(Array[Byte], Int), DetachedData] = 123 | Crypto.tryFn[(Array[Byte], Int), DetachedData] { 124 | case (data, ivSize) ⇒ 125 | val ivData = data.slice(0, ivSize) 126 | val encData = data.slice(ivSize, data.length) 127 | DetachedData(ivData, encData) 128 | }("Cannot detach data and IV") 129 | 130 | private val params: Crypto.Func[Array[Byte], KeyParameter] = 131 | Crypto.tryFn { key: Array[Byte] ⇒ 132 | val pGen = new PKCS5S2ParametersGenerator(new SHA256Digest) 133 | pGen.init(key, salt, iterationCount) 134 | 135 | pGen.generateDerivedParameters(BITS).asInstanceOf[KeyParameter] 136 | }("Cannot generate key parameters") 137 | 138 | private val paramsWithIV: Crypto.Func[(Array[Byte], Array[Byte]), ParametersWithIV] = 139 | Crypto { 140 | case (key: Array[Byte], iv: Array[Byte]) ⇒ 141 | params 142 | .andThen( 143 | Crypto.tryFn((kp: KeyParameter) ⇒ new ParametersWithIV(kp, iv))("Cannot generate key parameters with IV") 144 | ) 145 | .run(key) 146 | } 147 | 148 | /** 149 | * Generate key parameters with IV if it is necessary 150 | * key Password 151 | * @return Optional IV and cipher parameters 152 | */ 153 | val extDataWithParams: Crypto.Func[Array[Byte], (Option[Array[Byte]], CipherParameters)] = 154 | Crypto( 155 | key ⇒ 156 | if (withIV) { 157 | val ivData = generateIV 158 | 159 | // setup cipher parameters with key and IV 160 | paramsWithIV(key, ivData).map(k ⇒ (Some(ivData), k)) 161 | } else { 162 | params(key).map(k ⇒ (None, k)) 163 | } 164 | ) 165 | 166 | private val detachDataAndGetParams: Crypto.Func[(Array[Byte], Array[Char], Array[Byte], Boolean), DataWithParams] = 167 | Crypto { 168 | case (data, password, salt, withIV) ⇒ 169 | if (withIV) { 170 | for { 171 | ivDataWithEncData ← detachIV(data -> IV_SIZE) 172 | key ← initSecretKey(password -> salt) 173 | // setup cipher parameters with key and IV 174 | paramsWithIV ← paramsWithIV(key, ivDataWithEncData.ivData) 175 | } yield DataWithParams(ivDataWithEncData.encData, paramsWithIV) 176 | } else { 177 | for { 178 | key ← initSecretKey(password -> salt) 179 | // setup cipher parameters with key 180 | params ← params(key) 181 | } yield DataWithParams(data, params) 182 | } 183 | } 184 | 185 | val decrypt: Crypto.Func[Array[Byte], Array[Byte]] = 186 | Crypto[Array[Byte], Array[Byte]] { input: Array[Byte] ⇒ 187 | for { 188 | dataWithParams ← detachDataAndGetParams((input, password, salt, withIV)) 189 | decData ← processData((dataWithParams, None, /*encrypt =*/ false)) 190 | } yield decData 191 | } 192 | 193 | val encrypt: Crypto.Func[Array[Byte], Array[Byte]] = 194 | Crypto { input: Array[Byte] ⇒ 195 | for { 196 | key ← initSecretKey(password -> salt) 197 | extDataWithParams ← extDataWithParams(key) 198 | encData ← processData((DataWithParams(input, extDataWithParams._2), extDataWithParams._1, /*encrypt =*/ true)) 199 | } yield encData 200 | 201 | } 202 | } 203 | 204 | object AesCrypt { 205 | 206 | def build(password: ByteVector, withIV: Boolean, config: AesConfig): Crypto.Cipher[Array[Byte]] = { 207 | val aes = new AesCrypt(password.toHex.toCharArray, withIV, config) 208 | Crypto.Cipher(aes.encrypt, aes.decrypt) 209 | } 210 | 211 | } 212 | -------------------------------------------------------------------------------- /hashsign/jvm/src/main/scala/fluence/crypto/ecdsa/Ecdsa.scala: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 Fluence Labs Limited 3 | * 4 | * This program is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU Affero General Public License as 6 | * published by the Free Software Foundation, either version 3 of the 7 | * License, or (at your option) any later version. 8 | * 9 | * This program is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU Affero General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU Affero General Public License 15 | * along with this program. If not, see . 16 | */ 17 | 18 | package fluence.crypto.ecdsa 19 | 20 | import java.math.BigInteger 21 | import java.security._ 22 | import java.security.interfaces.ECPrivateKey 23 | 24 | import cats.instances.either._ 25 | import cats.syntax.either._ 26 | import fluence.crypto.KeyPair.Secret 27 | import fluence.crypto.{KeyPair, _} 28 | import fluence.crypto.hash.JdkCryptoHasher 29 | import fluence.crypto.signature.{SignAlgo, SignatureChecker, Signer} 30 | import org.bouncycastle.jce.ECNamedCurveTable 31 | import org.bouncycastle.jce.interfaces.ECPublicKey 32 | import org.bouncycastle.jce.provider.BouncyCastleProvider 33 | import org.bouncycastle.jce.spec.{ECParameterSpec, ECPrivateKeySpec, ECPublicKeySpec} 34 | import scodec.bits.ByteVector 35 | 36 | import scala.language.higherKinds 37 | 38 | /** 39 | * Elliptic Curve Digital Signature Algorithm 40 | * @param curveType http://www.bouncycastle.org/wiki/display/JA1/Supported+Curves+%28ECDSA+and+ECGOST%29 41 | * @param scheme https://bouncycastle.org/specifications.html 42 | */ 43 | class Ecdsa(curveType: String, scheme: String, hasher: Option[Crypto.Hasher[Array[Byte], Array[Byte]]]) 44 | extends JavaAlgorithm { 45 | 46 | import Ecdsa._ 47 | 48 | val HEXradix = 16 49 | 50 | /** 51 | * Restores pair of keys from the known secret key. 52 | * The public key will be the same each method call with the same secret key. 53 | * sk secret key 54 | * @return key pair 55 | */ 56 | val restorePairFromSecret: Crypto.Func[Secret, KeyPair] = 57 | Crypto( 58 | sk ⇒ 59 | for { 60 | ecSpec ← Either.fromOption( 61 | Option(ECNamedCurveTable.getParameterSpec(curveType)), 62 | CryptoError("Parameter spec for the curve is not available.") 63 | ) 64 | keyPair ← Crypto.tryUnit { 65 | val hex = sk.value.toHex 66 | val d = new BigInteger(hex, HEXradix) 67 | // to re-create public key from private we need to multiply known from curve point G with D (private key) 68 | // result will be point Q (public key) 69 | // https://en.wikipedia.org/wiki/Elliptic_Curve_Digital_Signature_Algorithm 70 | val g = ecSpec.getG 71 | val q = g.multiply(d) 72 | val pk = ByteVector(q.getEncoded(true)) 73 | KeyPair.fromByteVectors(pk, sk.value) 74 | }("Could not generate KeyPair from private key. Unexpected.") 75 | } yield keyPair 76 | ) 77 | 78 | private def curveSpec: Crypto.Result[ECParameterSpec] = 79 | Crypto.tryUnit(ECNamedCurveTable.getParameterSpec(curveType).asInstanceOf[ECParameterSpec])( 80 | "Cannot get curve parameters" 81 | ) 82 | 83 | private def getKeyPairGenerator = 84 | Crypto.tryUnit(KeyPairGenerator.getInstance(ECDSA, BouncyCastleProvider.PROVIDER_NAME))( 85 | "Cannot get key pair generator" 86 | ) 87 | 88 | val generateKeyPair: Crypto.KeyPairGenerator = 89 | Crypto[Option[Array[Byte]], KeyPair] { input ⇒ 90 | for { 91 | ecSpec ← Either.fromOption( 92 | Option(ECNamedCurveTable.getParameterSpec(curveType)), 93 | CryptoError("Parameter spec for the curve is not available.") 94 | ) 95 | g ← getKeyPairGenerator 96 | _ ← Crypto.tryUnit { 97 | g.initialize(ecSpec, input.map(new SecureRandom(_)).getOrElse(new SecureRandom())) 98 | }(s"Could not initialize KeyPairGenerator") 99 | p ← Either.fromOption(Option(g.generateKeyPair()), CryptoError("Generated key pair is null")) 100 | keyPair ← Crypto.tryUnit { 101 | val pk = p.getPublic match { 102 | case pk: ECPublicKey => ByteVector(p.getPublic.asInstanceOf[ECPublicKey].getQ.getEncoded(true)) 103 | case p => 104 | throw new ClassCastException(s"Cannot cast public key (${p.getClass}) to Ed25519PublicKeyParameters") 105 | } 106 | val sk = p.getPrivate match { 107 | case sk: ECPrivateKey => 108 | val bg = p.getPrivate.asInstanceOf[ECPrivateKey].getS 109 | ByteVector.fromValidHex(bg.toString(HEXradix)) 110 | case s => 111 | throw new ClassCastException(s"Cannot cast private key (${p.getClass}) to Ed25519PrivateKeyParameters") 112 | } 113 | KeyPair.fromByteVectors(pk, sk) 114 | }("Could not generate KeyPair") 115 | } yield keyPair 116 | } 117 | 118 | private def getKeyFactory = 119 | Crypto.tryUnit(KeyFactory.getInstance(ECDSA, BouncyCastleProvider.PROVIDER_NAME))( 120 | "Cannot get key factory instance" 121 | ) 122 | 123 | private def getSignatureProvider = 124 | Crypto.tryUnit(Signature.getInstance(scheme, BouncyCastleProvider.PROVIDER_NAME))( 125 | "Cannot get signature instance" 126 | ) 127 | 128 | private val signMessage: Crypto.Func[(BigInteger, Array[Byte]), Array[Byte]] = 129 | Crypto { 130 | case ( 131 | privateKey, 132 | message 133 | ) ⇒ 134 | for { 135 | ec ← curveSpec 136 | keySpec ← Crypto.tryUnit(new ECPrivateKeySpec(privateKey, ec))("Cannot read private key.") 137 | keyFactory ← getKeyFactory 138 | signProvider ← getSignatureProvider 139 | _ ← Crypto.tryUnit(signProvider.initSign(keyFactory.generatePrivate(keySpec)))("Cannot initSign") 140 | hash ← hasher.fold( 141 | message.asRight[CryptoError] 142 | )(_.apply(message)) 143 | 144 | sign ← Crypto.tryUnit { 145 | signProvider.update(hash) 146 | signProvider.sign() 147 | }("Cannot sign message.") 148 | 149 | } yield sign 150 | } 151 | 152 | val sign: Crypto.Func[(KeyPair, ByteVector), signature.Signature] = 153 | signMessage 154 | .map(bb ⇒ fluence.crypto.signature.Signature(ByteVector(bb))) 155 | .local { 156 | case (keyPair, message) ⇒ (new BigInteger(keyPair.secretKey.value.toHex, HEXradix), message.toArray) 157 | } 158 | 159 | private val verifySign: Crypto.Func[(Array[Byte], Array[Byte], Array[Byte]), Unit] = 160 | Crypto { 161 | case ( 162 | publicKey, 163 | signature, 164 | message 165 | ) ⇒ 166 | for { 167 | ec ← curveSpec 168 | keySpec ← Crypto.tryUnit(new ECPublicKeySpec(ec.getCurve.decodePoint(publicKey), ec))( 169 | "Cannot read public key" 170 | ) 171 | keyFactory ← getKeyFactory 172 | signProvider ← getSignatureProvider 173 | _ ← Crypto.tryUnit( 174 | signProvider.initVerify(keyFactory.generatePublic(keySpec)) 175 | )("Cannot initVerify message") 176 | 177 | hash ← hasher.fold( 178 | message.asRight[CryptoError] 179 | )(_.apply(message)) 180 | 181 | _ ← Crypto.tryUnit(signProvider.update(hash))("Cannot update message") 182 | 183 | verify ← Crypto.tryUnit(signProvider.verify(signature))("Cannot verify message") 184 | 185 | _ ← Either.cond(verify, (), CryptoError("Signature is not verified")) 186 | } yield () 187 | } 188 | 189 | val verify: Crypto.Func[(KeyPair.Public, signature.Signature, ByteVector), Unit] = 190 | verifySign.local { 191 | case ( 192 | publicKey, 193 | signature, 194 | message 195 | ) ⇒ 196 | (publicKey.bytes, signature.bytes, message.toArray) 197 | } 198 | } 199 | 200 | object Ecdsa { 201 | //algorithm name in security provider 202 | val ECDSA = "ECDSA" 203 | 204 | /** 205 | * size of key is 256 bit 206 | * `secp256k1` refers to the parameters of the ECDSA curve 207 | * `NONEwithECDSA with sha-256 hasher` Preferably the size of the key is greater than or equal to the digest algorithm 208 | * don't use `SHA256WithECDSA` because of non-compatibility with javascript libraries 209 | */ 210 | val ecdsa_secp256k1_sha256 = new Ecdsa("secp256k1", "NONEwithECDSA", Some(JdkCryptoHasher.Sha256)) 211 | 212 | val signAlgo: SignAlgo = SignAlgo( 213 | name = "ecdsa_secp256k1_sha256", 214 | generateKeyPair = ecdsa_secp256k1_sha256.generateKeyPair, 215 | signer = kp ⇒ 216 | Signer( 217 | kp.publicKey, 218 | Crypto { input ⇒ 219 | ecdsa_secp256k1_sha256.sign(kp -> input) 220 | } 221 | ), 222 | checker = pk ⇒ 223 | SignatureChecker( 224 | Crypto { 225 | case ( 226 | signature: fluence.crypto.signature.Signature, 227 | plain: ByteVector 228 | ) ⇒ 229 | ecdsa_secp256k1_sha256.verify(pk, signature, plain) 230 | } 231 | ) 232 | ) 233 | } 234 | -------------------------------------------------------------------------------- /LICENSE.md: -------------------------------------------------------------------------------- 1 | GNU Affero General Public License 2 | ================================= 3 | 4 | _Version 3, 19 November 2007_ 5 | _Copyright © 2007 Free Software Foundation, Inc. <>_ 6 | 7 | Everyone is permitted to copy and distribute verbatim copies 8 | of this license document, but changing it is not allowed. 9 | 10 | ## Preamble 11 | 12 | The 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This 256 | alternative is allowed only occasionally and noncommercially, and 257 | only if you received the object code with such an offer, in accord 258 | with subsection 6b. 259 | * **d)** Convey the object code by offering access from a designated 260 | place (gratis or for a charge), and offer equivalent access to the 261 | Corresponding Source in the same way through the same place at no 262 | further charge. You need not require recipients to copy the 263 | Corresponding Source along with the object code. If the place to 264 | copy the object code is a network server, the Corresponding Source 265 | may be on a different server (operated by you or a third party) 266 | that supports equivalent copying facilities, provided you maintain 267 | clear directions next to the object code saying where to find the 268 | Corresponding Source. Regardless of what server hosts the 269 | Corresponding Source, you remain obligated to ensure that it is 270 | available for as long as needed to satisfy these requirements. 271 | * **e)** Convey the object code using peer-to-peer transmission, provided 272 | you inform other peers where the object code and Corresponding 273 | Source of the work are being offered to the general public at no 274 | charge under subsection 6d. 275 | 276 | A separable portion of the object code, whose source code is excluded 277 | from the Corresponding Source as a System Library, need not be 278 | included in conveying the object code work. 279 | 280 | A “User Product” is either **(1)** a “consumer product”, which means any 281 | tangible personal property which is normally used for personal, family, 282 | or household purposes, or **(2)** anything designed or sold for incorporation 283 | into a dwelling. In determining whether a product is a consumer product, 284 | doubtful cases shall be resolved in favor of coverage. For a particular 285 | product received by a particular user, “normally used” refers to a 286 | typical or common use of that class of product, regardless of the status 287 | of the particular user or of the way in which the particular user 288 | actually uses, or expects or is expected to use, the product. A product 289 | is a consumer product regardless of whether the product has substantial 290 | commercial, industrial or non-consumer uses, unless such uses represent 291 | the only significant mode of use of the product. 292 | 293 | “Installation Information” for a User Product means any methods, 294 | procedures, authorization keys, or other information required to install 295 | and execute modified versions of a covered work in that User Product from 296 | a modified version of its Corresponding Source. The information must 297 | suffice to ensure that the continued functioning of the modified object 298 | code is in no case prevented or interfered with solely because 299 | modification has been made. 300 | 301 | If you convey an object code work under this section in, or with, or 302 | specifically for use in, a User Product, and the conveying occurs as 303 | part of a transaction in which the right of possession and use of the 304 | User Product is transferred to the recipient in perpetuity or for a 305 | fixed term (regardless of how the transaction is characterized), the 306 | Corresponding Source conveyed under this section must be accompanied 307 | by the Installation Information. But this requirement does not apply 308 | if neither you nor any third party retains the ability to install 309 | modified object code on the User Product (for example, the work has 310 | been installed in ROM). 311 | 312 | The requirement to provide Installation Information does not include a 313 | requirement to continue to provide support service, warranty, or updates 314 | for a work that has been modified or installed by the recipient, or for 315 | the User Product in which it has been modified or installed. Access to a 316 | network may be denied when the modification itself materially and 317 | adversely affects the operation of the network or violates the rules and 318 | protocols for communication across the network. 319 | 320 | Corresponding Source conveyed, and Installation Information provided, 321 | in accord with this section must be in a format that is publicly 322 | documented (and with an implementation available to the public in 323 | source code form), and must require no special password or key for 324 | unpacking, reading or copying. 325 | 326 | ### 7. Additional Terms 327 | 328 | “Additional permissions” are terms that supplement the terms of this 329 | License by making exceptions from one or more of its conditions. 330 | Additional permissions that are applicable to the entire Program shall 331 | be treated as though they were included in this License, to the extent 332 | that they are valid under applicable law. If additional permissions 333 | apply only to part of the Program, that part may be used separately 334 | under those permissions, but the entire Program remains governed by 335 | this License without regard to the additional permissions. 336 | 337 | When you convey a copy of a covered work, you may at your option 338 | remove any additional permissions from that copy, or from any part of 339 | it. (Additional permissions may be written to require their own 340 | removal in certain cases when you modify the work.) You may place 341 | additional permissions on material, added by you to a covered work, 342 | for which you have or can give appropriate copyright permission. 343 | 344 | Notwithstanding any other provision of this License, for material you 345 | add to a covered work, you may (if authorized by the copyright holders of 346 | that material) supplement the terms of this License with terms: 347 | 348 | * **a)** Disclaiming warranty or limiting liability differently from the 349 | terms of sections 15 and 16 of this License; or 350 | * **b)** Requiring preservation of specified reasonable legal notices or 351 | author attributions in that material or in the Appropriate Legal 352 | Notices displayed by works containing it; or 353 | * **c)** Prohibiting misrepresentation of the origin of that material, or 354 | requiring that modified versions of such material be marked in 355 | reasonable ways as different from the original version; or 356 | * **d)** Limiting the use for publicity purposes of names of licensors or 357 | authors of the material; or 358 | * **e)** Declining to grant rights under trademark law for use of some 359 | trade names, trademarks, or service marks; or 360 | * **f)** Requiring indemnification of licensors and authors of that 361 | material by anyone who conveys the material (or modified versions of 362 | it) with contractual assumptions of liability to the recipient, for 363 | any liability that these contractual assumptions directly impose on 364 | those licensors and authors. 365 | 366 | All other non-permissive additional terms are considered “further 367 | restrictions” within the meaning of section 10. If the Program as you 368 | received it, or any part of it, contains a notice stating that it is 369 | governed by this License along with a term that is a further 370 | restriction, you may remove that term. If a license document contains 371 | a further restriction but permits relicensing or conveying under this 372 | License, you may add to a covered work material governed by the terms 373 | of that license document, provided that the further restriction does 374 | not survive such relicensing or conveying. 375 | 376 | If you add terms to a covered work in accord with this section, you 377 | must place, in the relevant source files, a statement of the 378 | additional terms that apply to those files, or a notice indicating 379 | where to find the applicable terms. 380 | 381 | Additional terms, permissive or non-permissive, may be stated in the 382 | form of a separately written license, or stated as exceptions; 383 | the above requirements apply either way. 384 | 385 | ### 8. Termination 386 | 387 | You may not propagate or modify a covered work except as expressly 388 | provided under this License. Any attempt otherwise to propagate or 389 | modify it is void, and will automatically terminate your rights under 390 | this License (including any patent licenses granted under the third 391 | paragraph of section 11). 392 | 393 | However, if you cease all violation of this License, then your 394 | license from a particular copyright holder is reinstated **(a)** 395 | provisionally, unless and until the copyright holder explicitly and 396 | finally terminates your license, and **(b)** permanently, if the copyright 397 | holder fails to notify you of the violation by some reasonable means 398 | prior to 60 days after the cessation. 399 | 400 | Moreover, your license from a particular copyright holder is 401 | reinstated permanently if the copyright holder notifies you of the 402 | violation by some reasonable means, this is the first time you have 403 | received notice of violation of this License (for any work) from that 404 | copyright holder, and you cure the violation prior to 30 days after 405 | your receipt of the notice. 406 | 407 | Termination of your rights under this section does not terminate the 408 | licenses of parties who have received copies or rights from you under 409 | this License. If your rights have been terminated and not permanently 410 | reinstated, you do not qualify to receive new licenses for the same 411 | material under section 10. 412 | 413 | ### 9. Acceptance Not Required for Having Copies 414 | 415 | You are not required to accept this License in order to receive or 416 | run a copy of the Program. Ancillary propagation of a covered work 417 | occurring solely as a consequence of using peer-to-peer transmission 418 | to receive a copy likewise does not require acceptance. However, 419 | nothing other than this License grants you permission to propagate or 420 | modify any covered work. These actions infringe copyright if you do 421 | not accept this License. Therefore, by modifying or propagating a 422 | covered work, you indicate your acceptance of this License to do so. 423 | 424 | ### 10. Automatic Licensing of Downstream Recipients 425 | 426 | Each time you convey a covered work, the recipient automatically 427 | receives a license from the original licensors, to run, modify and 428 | propagate that work, subject to this License. You are not responsible 429 | for enforcing compliance by third parties with this License. 430 | 431 | An “entity transaction” is a transaction transferring control of an 432 | organization, or substantially all assets of one, or subdividing an 433 | organization, or merging organizations. If propagation of a covered 434 | work results from an entity transaction, each party to that 435 | transaction who receives a copy of the work also receives whatever 436 | licenses to the work the party's predecessor in interest had or could 437 | give under the previous paragraph, plus a right to possession of the 438 | Corresponding Source of the work from the predecessor in interest, if 439 | the predecessor has it or can get it with reasonable efforts. 440 | 441 | You may not impose any further restrictions on the exercise of the 442 | rights granted or affirmed under this License. For example, you may 443 | not impose a license fee, royalty, or other charge for exercise of 444 | rights granted under this License, and you may not initiate litigation 445 | (including a cross-claim or counterclaim in a lawsuit) alleging that 446 | any patent claim is infringed by making, using, selling, offering for 447 | sale, or importing the Program or any portion of it. 448 | 449 | ### 11. Patents 450 | 451 | A “contributor” is a copyright holder who authorizes use under this 452 | License of the Program or a work on which the Program is based. The 453 | work thus licensed is called the contributor's “contributor version”. 454 | 455 | A contributor's “essential patent claims” are all patent claims 456 | owned or controlled by the contributor, whether already acquired or 457 | hereafter acquired, that would be infringed by some manner, permitted 458 | by this License, of making, using, or selling its contributor version, 459 | but do not include claims that would be infringed only as a 460 | consequence of further modification of the contributor version. For 461 | purposes of this definition, “control” includes the right to grant 462 | patent sublicenses in a manner consistent with the requirements of 463 | this License. 464 | 465 | Each contributor grants you a non-exclusive, worldwide, royalty-free 466 | patent license under the contributor's essential patent claims, to 467 | make, use, sell, offer for sale, import and otherwise run, modify and 468 | propagate the contents of its contributor version. 469 | 470 | In the following three paragraphs, a “patent license” is any express 471 | agreement or commitment, however denominated, not to enforce a patent 472 | (such as an express permission to practice a patent or covenant not to 473 | sue for patent infringement). To “grant” such a patent license to a 474 | party means to make such an agreement or commitment not to enforce a 475 | patent against the party. 476 | 477 | If you convey a covered work, knowingly relying on a patent license, 478 | and the Corresponding Source of the work is not available for anyone 479 | to copy, free of charge and under the terms of this License, through a 480 | publicly available network server or other readily accessible means, 481 | then you must either **(1)** cause the Corresponding Source to be so 482 | available, or **(2)** arrange to deprive yourself of the benefit of the 483 | patent license for this particular work, or **(3)** arrange, in a manner 484 | consistent with the requirements of this License, to extend the patent 485 | license to downstream recipients. “Knowingly relying” means you have 486 | actual knowledge that, but for the patent license, your conveying the 487 | covered work in a country, or your recipient's use of the covered work 488 | in a country, would infringe one or more identifiable patents in that 489 | country that you have reason to believe are valid. 490 | 491 | If, pursuant to or in connection with a single transaction or 492 | arrangement, you convey, or propagate by procuring conveyance of, a 493 | covered work, and grant a patent license to some of the parties 494 | receiving the covered work authorizing them to use, propagate, modify 495 | or convey a specific copy of the covered work, then the patent license 496 | you grant is automatically extended to all recipients of the covered 497 | work and works based on it. 498 | 499 | A patent license is “discriminatory” if it does not include within 500 | the scope of its coverage, prohibits the exercise of, or is 501 | conditioned on the non-exercise of one or more of the rights that are 502 | specifically granted under this License. You may not convey a covered 503 | work if you are a party to an arrangement with a third party that is 504 | in the business of distributing software, under which you make payment 505 | to the third party based on the extent of your activity of conveying 506 | the work, and under which the third party grants, to any of the 507 | parties who would receive the covered work from you, a discriminatory 508 | patent license **(a)** in connection with copies of the covered work 509 | conveyed by you (or copies made from those copies), or **(b)** primarily 510 | for and in connection with specific products or compilations that 511 | contain the covered work, unless you entered into that arrangement, 512 | or that patent license was granted, prior to 28 March 2007. 513 | 514 | Nothing in this License shall be construed as excluding or limiting 515 | any implied license or other defenses to infringement that may 516 | otherwise be available to you under applicable patent law. 517 | 518 | ### 12. No Surrender of Others' Freedom 519 | 520 | If conditions are imposed on you (whether by court order, agreement or 521 | otherwise) that contradict the conditions of this License, they do not 522 | excuse you from the conditions of this License. If you cannot convey a 523 | covered work so as to satisfy simultaneously your obligations under this 524 | License and any other pertinent obligations, then as a consequence you may 525 | not convey it at all. For example, if you agree to terms that obligate you 526 | to collect a royalty for further conveying from those to whom you convey 527 | the Program, the only way you could satisfy both those terms and this 528 | License would be to refrain entirely from conveying the Program. 529 | 530 | ### 13. Remote Network Interaction; Use with the GNU General Public License 531 | 532 | Notwithstanding any other provision of this License, if you modify the 533 | Program, your modified version must prominently offer all users 534 | interacting with it remotely through a computer network (if your version 535 | supports such interaction) an opportunity to receive the Corresponding 536 | Source of your version by providing access to the Corresponding Source 537 | from a network server at no charge, through some standard or customary 538 | means of facilitating copying of software. This Corresponding Source 539 | shall include the Corresponding Source for any work covered by version 3 540 | of the GNU General Public License that is incorporated pursuant to the 541 | following paragraph. 542 | 543 | Notwithstanding any other provision of this License, you have 544 | permission to link or combine any covered work with a work licensed 545 | under version 3 of the GNU General Public License into a single 546 | combined work, and to convey the resulting work. The terms of this 547 | License will continue to apply to the part which is the covered work, 548 | but the work with which it is combined will remain governed by version 549 | 3 of the GNU General Public License. 550 | 551 | ### 14. Revised Versions of this License 552 | 553 | The Free Software Foundation may publish revised and/or new versions of 554 | the GNU Affero General Public License from time to time. Such new versions 555 | will be similar in spirit to the present version, but may differ in detail to 556 | address new problems or concerns. 557 | 558 | Each version is given a distinguishing version number. If the 559 | Program specifies that a certain numbered version of the GNU Affero General 560 | Public License “or any later version” applies to it, you have the 561 | option of following the terms and conditions either of that numbered 562 | version or of any later version published by the Free Software 563 | Foundation. If the Program does not specify a version number of the 564 | GNU Affero General Public License, you may choose any version ever published 565 | by the Free Software Foundation. 566 | 567 | If the Program specifies that a proxy can decide which future 568 | versions of the GNU Affero General Public License can be used, that proxy's 569 | public statement of acceptance of a version permanently authorizes you 570 | to choose that version for the Program. 571 | 572 | Later license versions may give you additional or different 573 | permissions. However, no additional obligations are imposed on any 574 | author or copyright holder as a result of your choosing to follow a 575 | later version. 576 | 577 | ### 15. Disclaimer of Warranty 578 | 579 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 580 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 581 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY 582 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 583 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 584 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 585 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 586 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 587 | 588 | ### 16. Limitation of Liability 589 | 590 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 591 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 592 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 593 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 594 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 595 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 596 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 597 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 598 | SUCH DAMAGES. 599 | 600 | ### 17. Interpretation of Sections 15 and 16 601 | 602 | If the disclaimer of warranty and limitation of liability provided 603 | above cannot be given local legal effect according to their terms, 604 | reviewing courts shall apply local law that most closely approximates 605 | an absolute waiver of all civil liability in connection with the 606 | Program, unless a warranty or assumption of liability accompanies a 607 | copy of the Program in return for a fee. 608 | 609 | _END OF TERMS AND CONDITIONS_ 610 | 611 | ## How to Apply These Terms to Your New Programs 612 | 613 | If you develop a new program, and you want it to be of the greatest 614 | possible use to the public, the best way to achieve this is to make it 615 | free software which everyone can redistribute and change under these terms. 616 | 617 | To do so, attach the following notices to the program. It is safest 618 | to attach them to the start of each source file to most effectively 619 | state the exclusion of warranty; and each file should have at least 620 | the “copyright” line and a pointer to where the full notice is found. 621 | 622 | 623 | Copyright (C) 624 | 625 | This program is free software: you can redistribute it and/or modify 626 | it under the terms of the GNU Affero General Public License as published by 627 | the Free Software Foundation, either version 3 of the License, or 628 | (at your option) any later version. 629 | 630 | This program is distributed in the hope that it will be useful, 631 | but WITHOUT ANY WARRANTY; without even the implied warranty of 632 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 633 | GNU Affero General Public License for more details. 634 | 635 | You should have received a copy of the GNU Affero General Public License 636 | along with this program. If not, see . 637 | 638 | Also add information on how to contact you by electronic and paper mail. 639 | 640 | If your software can interact with users remotely through a computer 641 | network, you should also make sure that it provides a way for users to 642 | get its source. For example, if your program is a web application, its 643 | interface could display a “Source” link that leads users to an archive 644 | of the code. There are many ways you could offer source, and different 645 | solutions will be better for different programs; see section 13 for the 646 | specific requirements. 647 | 648 | You should also get your employer (if you work as a programmer) or school, 649 | if any, to sign a “copyright disclaimer” for the program, if necessary. 650 | For more information on this, and how to apply and follow the GNU AGPL, see 651 | <>. --------------------------------------------------------------------------------