├── .gitkeep
├── go.mod
├── RandomAddresses
    └── README.md
├── Addresses
    └── README.md
├── .github
    └── FUNDING.yml
├── go.sum
├── LICENSE
├── README.md
├── main.go
└── random.go


/.gitkeep:
--------------------------------------------------------------------------------
1 | Addresses
2 | RandomAddresses
3 | 
4 | 


--------------------------------------------------------------------------------
/go.mod:
--------------------------------------------------------------------------------
1 | module oniongen-go
2 | 
3 | go 1.14
4 | 
5 | require (
6 | 	golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad
7 | 	golang.org/x/sys v0.0.0-20201223074533-0d417f636930 // indirect
8 | )
9 | 


--------------------------------------------------------------------------------
/RandomAddresses/README.md:
--------------------------------------------------------------------------------
 1 | ## Random Onion Address
 2 | To generate v3 .onion random address.
 3 | 
 4 | ```go
 5 | go run random.go
 6 | ```
 7 | 
 8 | This will generate a random onion address.
 9 | 
10 | > The onion addresses will be stored in RandomAddress dictionary.
11 | 


--------------------------------------------------------------------------------
/Addresses/README.md:
--------------------------------------------------------------------------------
1 | ## Address
2 | This folder contains onion address you have generated  with below command.
3 | ```sh
4 | go run main.go <regex> <number>
5 | 
6 |     regex   regex pattern addresses should match, consisiting of: A-Z, 2-7
7 |     number  number of matching addresses to generate before exiting
8 | ```
9 | 


--------------------------------------------------------------------------------
/.github/FUNDING.yml:
--------------------------------------------------------------------------------
 1 | 
 2 | # These are supported funding model platforms
 3 | 
 4 | github: # sumithemmadi
 5 | patreon: # Replace with a single Patreon username
 6 | open_collective: # Replace with a single Open Collective username
 7 | ko_fi: # Replace with a single Ko-fi username
 8 | tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
 9 | community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
10 | liberapay: sumithemmadi
11 | issuehunt: sumithemmadi
12 | otechie: # Replace with a single Otechie username
13 | custom: # ["https://paypal.me/sumithemmadi"]
14 | 


--------------------------------------------------------------------------------
/go.sum:
--------------------------------------------------------------------------------
 1 | golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 2 | golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad h1:DN0cp81fZ3njFcrLCytUHRSUkqBjfTo4Tx9RJTWs0EY=
 3 | golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
 4 | golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 5 | golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 6 | golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 7 | golang.org/x/sys v0.0.0-20201223074533-0d417f636930 h1:vRgIt+nup/B/BwIS0g2oC0haq0iqbV3ZA+u6+0TlNCo=
 8 | golang.org/x/sys v0.0.0-20201223074533-0d417f636930/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 9 | golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
10 | golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
11 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | MIT License
 2 | 
 3 | Copyright (c) 2021 Emmadi Sumith Kumar
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # oniongen
 2 | 
 3 | v3 .onion address vanity URL generator written in Go.
 4 | 
 5 | This implementation generates random ed25519 keys across all CPU cores. The ed25519 public key is converted to a Tor v3 .onion address which is then compared to a user supplied regex to find a vanity URL. If the regex for the .onion address matches, the secret key is expanded for use by Tor and the public key, secret key, and hostname are written to file in a new directory named for the .onion address. The program terminates when the user supplied number of addresses have been generated.
 6 | 
 7 | ## Usage
 8 | 
 9 | ```go
10 | go run main.go <regex> <number>
11 | 
12 |     regex   regex pattern addresses should match, consisiting of: A-Z, 2-7
13 |     number  number of matching addresses to generate before exiting
14 | ```
15 | 
16 | ## Example
17 | 
18 | ```go
19 | go run main.go "^test" 5
20 | 
21 |     generate 5 onion addresses starting with "test"
22 | ```
23 | > The onion addresses will be stored in `Addresses` directory.
24 | ## Random Onion Address
25 | 
26 | To generate v3 .onion random address.
27 | 
28 | ```go
29 | go run random.go
30 | ```
31 | This will generate a random onion addresses.
32 | 
33 | > The onion addresses will be stored in `RandomAddress` directory.
34 | <!--
35 | ## References
36 | 
37 | - public key -> onion: https://github.com/torproject/torspec/blob/12271f0e6db00dee9600425b2de063e02f19c1ee/rend-spec-v3.txt#L2136-L2158
38 | - secret key expansion:
39 |     - implementation in mkp224o: https://github.com/cathugger/mkp224o/blob/af5a7cfe122ba62e819b92c8b5a662151a284c69/ed25519/ed25519.h#L153-L161
40 |     - possibly related: https://github.com/torproject/torspec/blob/12271f0e6db00dee9600425b2de063e02f19c1ee/rend-spec-v3.txt#L2268-L2327 ??
41 | -->
42 | 


--------------------------------------------------------------------------------
/main.go:
--------------------------------------------------------------------------------
  1 | /*
  2 | 
  3 | MIT License
  4 | 
  5 | Copyright (c) 2021 Emmadi Sumith Kumar
  6 | 
  7 | Permission is hereby granted, free of charge, to any person obtaining a copy
  8 | of this software and associated documentation files (the "Software"), to deal
  9 | in the Software without restriction, including without limitation the rights
 10 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 11 | copies of the Software, and to permit persons to whom the Software is
 12 | furnished to do so, subject to the following conditions:
 13 | 
 14 | The above copyright notice and this permission notice shall be included in all
 15 | copies or substantial portions of the Software.
 16 | 
 17 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 18 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 19 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 20 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 21 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 22 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 23 | SOFTWARE.
 24 | 
 25 | */
 26 | package main
 27 | 
 28 | import (
 29 | 	"bytes"
 30 | 	"crypto/ed25519"
 31 | 	"crypto/sha512"
 32 | 	"encoding/base32"
 33 | 	"fmt"
 34 | 	"io/ioutil"
 35 | 	"os"
 36 | 	"regexp"
 37 | 	"runtime"
 38 | 	"strconv"
 39 | 	"strings"
 40 | 	"sync"
 41 | 
 42 | 	"golang.org/x/crypto/sha3"
 43 | )
 44 | 
 45 | func generate(wg *sync.WaitGroup, re *regexp.Regexp) {
 46 | 
 47 | 	for {
 48 | 
 49 | 		publicKey, secretKey, err := ed25519.GenerateKey(nil)
 50 | 		checkErr(err)
 51 | 
 52 | 		onionAddress := encodePublicKey(publicKey)
 53 | 
 54 | 		// If a matching address is found, save key and notify wait group
 55 | 		if re.MatchString(onionAddress) == true {
 56 | 			fmt.Println(onionAddress+".onion")
 57 | 			save(onionAddress, publicKey, expandSecretKey(secretKey))
 58 | 			wg.Done()
 59 | 		}
 60 | 	}
 61 | }
 62 | 
 63 | func expandSecretKey(secretKey ed25519.PrivateKey) [64]byte {
 64 | 
 65 | 	hash := sha512.Sum512(secretKey[:32])
 66 | 	hash[0] &= 248
 67 | 	hash[31] &= 127
 68 | 	hash[31] |= 64
 69 | 	return hash
 70 | 
 71 | }
 72 | 
 73 | func encodePublicKey(publicKey ed25519.PublicKey) string {
 74 | 
 75 | 	// checksum = H(".onion checksum" || pubkey || version)
 76 | 	var checksumBytes bytes.Buffer
 77 | 	checksumBytes.Write([]byte(".onion checksum"))
 78 | 	checksumBytes.Write([]byte(publicKey))
 79 | 	checksumBytes.Write([]byte{0x03})
 80 | 	checksum := sha3.Sum256(checksumBytes.Bytes())
 81 | 
 82 | 	// onion_address = base32(pubkey || checksum || version)
 83 | 	var onionAddressBytes bytes.Buffer
 84 | 	onionAddressBytes.Write([]byte(publicKey))
 85 | 	onionAddressBytes.Write([]byte(checksum[:2]))
 86 | 	onionAddressBytes.Write([]byte{0x03})
 87 | 	onionAddress := base32.StdEncoding.EncodeToString(onionAddressBytes.Bytes())
 88 | 
 89 | 	return strings.ToLower(onionAddress)
 90 | 
 91 | }
 92 | 
 93 | func save(onionAddress string, publicKey ed25519.PublicKey, secretKey [64]byte) {
 94 | 	os.MkdirAll("Addresses/"+onionAddress, 0700)
 95 | 
 96 | 	secretKeyFile := append([]byte("== ed25519v1-secret: type0 ==\x00\x00\x00"), secretKey[:]...)
 97 | 	checkErr(ioutil.WriteFile("Addresses/"+onionAddress+"/hs_ed25519_secret_key", secretKeyFile, 0600))
 98 | 
 99 | 	publicKeyFile := append([]byte("== ed25519v1-public: type0 ==\x00\x00\x00"), publicKey...)
100 | 	checkErr(ioutil.WriteFile("Addresses/"+onionAddress+"/hs_ed25519_public_key", publicKeyFile, 0600))
101 | 
102 | 	checkErr(ioutil.WriteFile("Addresses/"+onionAddress+"/hostname", []byte(onionAddress+".onion"), 0600))
103 | }
104 | 
105 | func checkErr(err error) {
106 | 	if err != nil {
107 | 		panic(err)
108 | 	}
109 | }
110 | 
111 | func main() {
112 | 
113 | 	// Set runtime to use all available CPUs.
114 | 	runtime.GOMAXPROCS(runtime.NumCPU())
115 | 
116 | 	// Compile regex from first argument.
117 | 	re, _ := regexp.Compile(os.Args[1])
118 | 
119 | 	// Get the number of desired addreses from second argument.
120 | 	numAddresses, _ := strconv.Atoi(os.Args[2])
121 | 
122 | 	// WaitGroup of size equal to desired number of addresses
123 | 	var wg sync.WaitGroup
124 | 	wg.Add(numAddresses)
125 | 
126 | 	// For each CPU, run a generate goroutine
127 | 	for i := 0; i < runtime.NumCPU(); i++ {
128 | 		go generate(&wg, re)
129 | 	}
130 | 
131 | 	// Exit after the desired number of addresses have been found.
132 | 	wg.Wait()
133 | 
134 | }
135 | 


--------------------------------------------------------------------------------
/random.go:
--------------------------------------------------------------------------------
  1 | /*
  2 | MIT License
  3 | 
  4 | Copyright (c) 2021 Emmadi Sumith Kumar
  5 | 
  6 | Permission is hereby granted, free of charge, to any person obtaining a copy
  7 | of this software and associated documentation files (the "Software"), to deal
  8 | in the Software without restriction, including without limitation the rights
  9 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 10 | copies of the Software, and to permit persons to whom the Software is
 11 | furnished to do so, subject to the following conditions:
 12 | 
 13 | The above copyright notice and this permission notice shall be included in all
 14 | copies or substantial portions of the Software.
 15 | 
 16 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 17 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 18 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 19 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 20 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 21 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 22 | SOFTWARE.
 23 | */
 24 | package main
 25 | 
 26 | import (
 27 | 	"bytes"
 28 | 	"crypto/ed25519"
 29 | 	"crypto/sha512"
 30 | 	"encoding/base32"
 31 | 	"fmt"
 32 | 	"io/ioutil"
 33 | 	"os"
 34 | 	"regexp"
 35 | 	"runtime"
 36 | 	"strconv"
 37 | 	"strings"
 38 | 	"sync"
 39 | //        "time"
 40 |         "math/rand"
 41 | 	"golang.org/x/crypto/sha3"
 42 | )
 43 | //var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
 44 | var letters = []rune("abcdefghijklmnopqrstuvwxyz")
 45 | 
 46 | 
 47 | func RandomVariable(n int) string {
 48 |     b := make([]rune, n)
 49 |     for i := range b {
 50 |         b[i] = letters[rand.Intn(len(letters))]
 51 |     }
 52 |     return string(b)
 53 | }
 54 | /*
 55 | func main() {
 56 |     rand.Seed(time.Now().UnixNano())
 57 | 
 58 |     fmt.Println(RandomVariable(1))
 59 | }
 60 | */
 61 | func generate(wg *sync.WaitGroup, re *regexp.Regexp) {
 62 | 
 63 | 	for {
 64 | 
 65 | 		publicKey, secretKey, err := ed25519.GenerateKey(nil)
 66 | 		checkErr(err)
 67 | 
 68 | 		onionAddress := encodePublicKey(publicKey)
 69 | 
 70 | 		// If a matching address is found, save key and notify wait group
 71 | 		if re.MatchString(onionAddress) == true {
 72 | 			fmt.Println(onionAddress+".onion")
 73 | 			save(onionAddress, publicKey, expandSecretKey(secretKey))
 74 | 			wg.Done()
 75 | 		}
 76 | 	}
 77 | }
 78 | 
 79 | func expandSecretKey(secretKey ed25519.PrivateKey) [64]byte {
 80 | 
 81 | 	hash := sha512.Sum512(secretKey[:32])
 82 | 	hash[0] &= 248
 83 | 	hash[31] &= 127
 84 | 	hash[31] |= 64
 85 | 	return hash
 86 | 
 87 | }
 88 | 
 89 | func encodePublicKey(publicKey ed25519.PublicKey) string {
 90 | 
 91 | 	// checksum = H(".onion checksum" || pubkey || version)
 92 | 	var checksumBytes bytes.Buffer
 93 | 	checksumBytes.Write([]byte(".onion checksum"))
 94 | 	checksumBytes.Write([]byte(publicKey))
 95 | 	checksumBytes.Write([]byte{0x03})
 96 | 	checksum := sha3.Sum256(checksumBytes.Bytes())
 97 | 
 98 | 	// onion_address = base32(pubkey || checksum || version)
 99 | 	var onionAddressBytes bytes.Buffer
100 | 	onionAddressBytes.Write([]byte(publicKey))
101 | 	onionAddressBytes.Write([]byte(checksum[:2]))
102 | 	onionAddressBytes.Write([]byte{0x03})
103 | 	onionAddress := base32.StdEncoding.EncodeToString(onionAddressBytes.Bytes())
104 | 
105 | 	return strings.ToLower(onionAddress)
106 | 
107 | }
108 | 
109 | func save(onionAddress string, publicKey ed25519.PublicKey, secretKey [64]byte) {
110 | 	os.MkdirAll("RandomAddresses/"+onionAddress, 0700)
111 | 
112 | 	secretKeyFile := append([]byte("== ed25519v1-secret: type0 ==\x00\x00\x00"), secretKey[:]...)
113 | 	checkErr(ioutil.WriteFile("RandomAddresses/"+onionAddress+"/hs_ed25519_secret_key", secretKeyFile, 0600))
114 | 
115 | 	publicKeyFile := append([]byte("== ed25519v1-public: type0 ==\x00\x00\x00"), publicKey...)
116 | 	checkErr(ioutil.WriteFile("RandomAddresses/"+onionAddress+"/hs_ed25519_public_key", publicKeyFile, 0600))
117 | 
118 | 	checkErr(ioutil.WriteFile("RandomAddresses/"+onionAddress+"/hostname", []byte(onionAddress+".onion"), 0600))
119 | }
120 | 
121 | func checkErr(err error) {
122 | 	if err != nil {
123 | 		panic(err)
124 | 	}
125 | }
126 | 
127 | func main() {
128 | 
129 | 	// Set runtime to use all available CPUs.
130 | 	runtime.GOMAXPROCS(runtime.NumCPU())
131 | 
132 | 	// Compile regex from first argument.
133 | 	re, _ := regexp.Compile(RandomVariable(4))
134 | 
135 | 	// Get the number of desired addreses from second argument.
136 | 	numAddresses, _ := strconv.Atoi("1")
137 | 
138 | 	// WaitGroup of size equal to desired number of addresses
139 | 	var wg sync.WaitGroup
140 | 	wg.Add(numAddresses)
141 | 
142 | 	// For each CPU, run a generate goroutine
143 | 	for i := 0; i < runtime.NumCPU(); i++ {
144 | 		go generate(&wg, re)
145 | 	}
146 | 
147 | 	// Exit after the desired number of addresses have been found.
148 | 	wg.Wait()
149 | 
150 | }
151 | 


--------------------------------------------------------------------------------