├── .gitignore
├── DES.cs
├── DES.go
├── DES.py
├── EncryptHelper.java
├── LICENSE
├── README.md
└── demo.py


/.gitignore:
--------------------------------------------------------------------------------
 1 | # Compiled class file
 2 | *.class
 3 | 
 4 | # Log file
 5 | *.log
 6 | 
 7 | # BlueJ files
 8 | *.ctxt
 9 | 
10 | # Mobile Tools for Java (J2ME)
11 | .mtj.tmp/
12 | 
13 | # Package Files #
14 | *.jar
15 | *.war
16 | *.ear
17 | *.zip
18 | *.tar.gz
19 | *.rar
20 | 
21 | # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
22 | hs_err_pid*
23 | 


--------------------------------------------------------------------------------
/DES.cs:
--------------------------------------------------------------------------------
  1 | using System;
  2 | using System.Security.Cryptography;
  3 | using System.Text;
  4 | using System.IO;  
  5 | using System.Runtime.InteropServices;
  6 | using  System.Globalization ;
  7 | using System.Collections.Generic ;
  8 | namespace myApp
  9 | {
 10 |     public class DES
 11 |     {   
 12 |          #region DES加密解密
 13 |         /// <owner>
 14 |         /// 张建新
 15 |         /// <summary>
 16 |         /// DES加密
 17 |         /// </summary>
 18 |         /// <param name="data">加密数据</param>
 19 |         /// <param name="key">8位字符的密钥字符串</param>
 20 |         /// <param name="iv">8位字符的初始化向量字符串</param>
 21 |         /// <returns></returns>
 22 |         public static string Encrypt(string data, string key, string iv)
 23 |         {
 24 |             using (DESCryptoServiceProvider des = new DESCryptoServiceProvider())
 25 |              {
 26 |                 byte[] inputByteArray = Encoding.UTF8.GetBytes(data);
 27 |                 des.Key = ASCIIEncoding.ASCII.GetBytes(key);
 28 |                 des.IV = ASCIIEncoding.ASCII.GetBytes(iv);
 29 |                 System.IO.MemoryStream ms = new System.IO.MemoryStream();
 30 |                 using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write))
 31 |                 {
 32 |                     cs.Write(inputByteArray, 0, inputByteArray.Length);
 33 |                     cs.FlushFinalBlock();
 34 |                     cs.Close();
 35 |                 }
 36 |                 string str = bytes2Hex(ms.ToArray());
 37 |                 ms.Close();
 38 |                 return str;
 39 |             }
 40 |          }
 41 | 
 42 |         /// <summary>
 43 |         /// DES解密
 44 |         /// </summary>
 45 |         /// <param name="data">解密数据</param>
 46 |         /// <param name="key">8位字符的密钥字符串(需要和加密时相同)</param>
 47 |         /// <param name="iv">8位字符的初始化向量字符串(需要和加密时相同)</param>
 48 |         /// <returns></returns>
 49 |         public static string Decrypt(string data, string key, string iv)
 50 |         {
 51 |             byte[] byKey = Encoding.UTF8.GetBytes(key);
 52 |             byte[] byIV = Encoding.UTF8.GetBytes(iv);
 53 |  
 54 |             byte[] byEnc;
 55 |             try
 56 |             {
 57 |                 byEnc = hex2Bytes(data);
 58 |             }
 59 |             catch
 60 |             {
 61 |                 return null;
 62 |             }
 63 |             DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
 64 |             MemoryStream ms = new MemoryStream(byEnc);
 65 |             CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateDecryptor(byKey, byIV), CryptoStreamMode.Read);
 66 |             StreamReader sr = new StreamReader(cst);
 67 |             return sr.ReadToEnd();
 68 |         }
 69 | 
 70 |         public static string bytes2Hex(byte[] ba)
 71 |         {
 72 |             StringBuilder hex = new StringBuilder(ba.Length * 2);
 73 |             foreach (byte b in ba)
 74 |                 hex.AppendFormat("{0:x2}", b);
 75 |             return hex.ToString();
 76 |         }
 77 | 
 78 |          public static byte[] hex2Bytes(string str)
 79 |         {
 80 |             if (str.Length == 0 || str.Length % 2 != 0)
 81 |                 return new byte[0];
 82 | 
 83 |             byte[] buffer = new byte[str.Length / 2];
 84 |             char c;
 85 |             for (int bx = 0, sx = 0; bx < buffer.Length; ++bx, ++sx)
 86 |             {
 87 |                 // Convert first half of byte
 88 |                 c = str[sx];
 89 |                 buffer[bx] = (byte)((c > '9' ? (c > 'Z' ? (c - 'a' + 10) : (c - 'A' + 10)) : (c - '0')) << 4);
 90 | 
 91 |                 // Convert second half of byte
 92 |                 c = str[++sx];
 93 |                 buffer[bx] |= (byte)(c > '9' ? (c > 'Z' ? (c - 'a' + 10) : (c - 'A' + 10)) : (c - '0'));
 94 |             }
 95 | 
 96 |             return buffer;
 97 |         }
 98 |         #endregion
 99 |     }
100 | }


--------------------------------------------------------------------------------
/DES.go:
--------------------------------------------------------------------------------
 1 | package main
 2 | 
 3 | import "crypto/cipher"
 4 | import "crypto/des"
 5 | import "bytes"
 6 | import "fmt"
 7 | import COM  "github.com/bitherhq/go-bither/common"
 8 | 
 9 | func main(){
10 | 	key := []byte("aFefbFca")
11 | 	IV := []byte("Passw0rd")
12 |     Encryptresult, err := DesEncrypt([]byte("Hello World!"), key,IV)
13 |     if err != nil {
14 |         panic(err)
15 | 	}
16 | 	fmt.Println(COM.Bytes2Hex(Encryptresult))
17 | 	
18 | 	DesDecryptresult, err := DesDecrypt([]byte("e529b5bbd2e0e3fb62eeb88ba6a22367"), key,IV)
19 |     if err != nil {
20 |         panic(err)
21 | 	}
22 | 	fmt.Println((string(DesDecryptresult)))
23 | 
24 | 
25 | }
26 | 
27 | func DesEncrypt(origData, key []byte,IV []byte) ([]byte, error) {
28 | 	block, err := des.NewCipher(key)
29 | 	if err != nil {
30 | 		 return nil, err
31 | 	}
32 | 	origData = PKCS5Padding(origData, block.BlockSize())
33 | 	// origData = ZeroPadding(origData, block.BlockSize())
34 | 	blockMode := cipher.NewCBCEncrypter(block, IV)
35 | 	crypted := make([]byte, len(origData))
36 | 	 // 根据CryptBlocks方法的说明，如下方式初始化crypted也可以
37 | 	// crypted := origData
38 | 	blockMode.CryptBlocks(crypted, origData)
39 | 	return crypted, nil
40 | }
41 | 
42 | 
43 | func DesDecrypt(crypted, key []byte ,IV []byte) ([]byte, error) {
44 | 	crypted = COM.Hex2Bytes(string(crypted))
45 | 	block, err := des.NewCipher(key)
46 | 	if err != nil {
47 | 		 return nil, err
48 | 	}
49 | 	blockMode := cipher.NewCBCDecrypter(block, IV)
50 | 	origData := make([]byte, len(crypted))
51 | 	// origData := crypted
52 | 	blockMode.CryptBlocks(origData, crypted)
53 | 	origData = PKCS5UnPadding(origData)
54 | 	// origData = ZeroUnPadding(origData)
55 | 	return origData, nil
56 | }
57 | 
58 | func PKCS5Padding(ciphertext []byte, blockSize int) []byte {
59 |     padding := blockSize - len(ciphertext)%blockSize
60 |     padtext := bytes.Repeat([]byte{byte(padding)}, padding)
61 |     return append(ciphertext, padtext...)
62 | }
63 | 
64 | func PKCS5UnPadding(origData []byte) []byte {
65 |     length := len(origData)
66 |     // 去掉最后一个字节 unpadding 次
67 |     unpadding := int(origData[length-1])
68 |     return origData[:(length - unpadding)]
69 | }


--------------------------------------------------------------------------------
/DES.py:
--------------------------------------------------------------------------------
 1 | #!/usr/bin/python
 2 | # -*- coding: UTF-8 -*-
 3 | import sys
 4 | reload(sys)
 5 | sys.setdefaultencoding('utf-8')
 6 | from pyDes import *
 7 | from binascii import b2a_hex, a2b_hex
 8 | 
 9 | # For Python3, you'll need to use bytes, i.e.:
10 | #   data = b"Please encrypt my data"
11 | #   k = des(b"KEY", CBC, b"VI", pad=None, padmode=PAD_PKCS5)
12 | class DES():
13 |     def encrypt(self,key,iv,data):
14 |         k = des(key, CBC, iv, pad=None, padmode=PAD_PKCS5)
15 |         d = k.encrypt(data)
16 |         return b2a_hex(d)
17 | 
18 |     def decrypt(self,key,iv,data):
19 |         k = des(key, CBC, iv, pad=None, padmode=PAD_PKCS5)
20 |         d = a2b_hex(data)
21 |         return k.decrypt(d)
22 | 
23 |        # print encrypt("test_KEY",Des_IV,data)
24 |        #
25 |        # print decrypt("test_KEY",Des_IV,"82b40012c204887f")
26 | 
27 | 
28 | 
29 | 


--------------------------------------------------------------------------------
/EncryptHelper.java:
--------------------------------------------------------------------------------
  1 | package com.tod.base.server.utils;
  2 | import javax.crypto.Cipher;
  3 | import javax.crypto.SecretKey;
  4 | import javax.crypto.SecretKeyFactory;
  5 | import javax.crypto.spec.DESKeySpec;
  6 | import javax.crypto.spec.IvParameterSpec;
  7 | 
  8 | /**
  9 |  * Created by zhangjianxin on 2017/10/26.
 10 |  * Github Breakeval13
 11 |  * blog firsh.me
 12 |  */
 13 | public class EncryptHelper {
 14 | 
 15 |     private static String strKey = "Passw0rd", strParam = "Passw0rd";
 16 | 
 17 |     public static String desEncrypt(String source) throws Exception {
 18 |         if (source == null || source.length() == 0){
 19 |             return null;
 20 |         }
 21 |         Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
 22 |         DESKeySpec desKeySpec = new DESKeySpec(strKey.getBytes("UTF-8"));
 23 |         SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
 24 |         SecretKey secretKey = keyFactory.generateSecret(desKeySpec);
 25 |         IvParameterSpec iv = new IvParameterSpec(strParam.getBytes("UTF-8"));
 26 |         cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv);
 27 |         return byte2hex(
 28 |                 cipher.doFinal(source.getBytes("UTF-8"))).toUpperCase();
 29 |     }
 30 | 
 31 |     public static String desEncrypt(String strKey,String source) throws Exception {
 32 |         if (source == null || source.length() == 0){
 33 |             return null;
 34 |         }
 35 |         Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
 36 |         DESKeySpec desKeySpec = new DESKeySpec(strKey.getBytes("UTF-8"));
 37 |         SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
 38 |         SecretKey secretKey = keyFactory.generateSecret(desKeySpec);
 39 |         IvParameterSpec iv = new IvParameterSpec(strParam.getBytes("UTF-8"));
 40 |         cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv);
 41 |         return byte2hex(
 42 |                 cipher.doFinal(source.getBytes("UTF-8"))).toUpperCase();
 43 |     }
 44 | 
 45 |     public static String byte2hex(byte[] inStr) {
 46 |         String stmp;
 47 |         StringBuffer out = new StringBuffer(inStr.length * 2);
 48 | 
 49 |         for (int n = 0; n < inStr.length; n++) {
 50 |             stmp = Integer.toHexString(inStr[n] & 0xFF);
 51 |             if (stmp.length() == 1) {
 52 |                 // 如果是0至F的单位字符串，则添加0
 53 |                 out.append("0" + stmp);
 54 |             } else {
 55 |                 out.append(stmp);
 56 |             }
 57 |         }
 58 |         return out.toString();
 59 |     }
 60 | 
 61 | 
 62 |     public static byte[] hex2byte(byte[] b) {
 63 |         if ((b.length % 2) != 0){
 64 |             throw new IllegalArgumentException("长度不是偶数");
 65 |         }
 66 |         byte[] b2 = new byte[b.length / 2];
 67 |         for (int n = 0; n < b.length; n += 2) {
 68 |             String item = new String(b, n, 2);
 69 |             b2[n / 2] = (byte) Integer.parseInt(item, 16);
 70 |         }
 71 |         return b2;
 72 |     }
 73 | 
 74 |     public static String desDecrypt(String source) throws Exception {
 75 |         if (source == null || source.length() == 0){
 76 |             return null;
 77 |         }
 78 |         byte[] src = hex2byte(source.getBytes());
 79 |         Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
 80 |         DESKeySpec desKeySpec = new DESKeySpec(strKey.getBytes("UTF-8"));
 81 |         SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
 82 |         SecretKey secretKey = keyFactory.generateSecret(desKeySpec);
 83 |         IvParameterSpec iv = new IvParameterSpec(strParam.getBytes("UTF-8"));
 84 |         cipher.init(Cipher.DECRYPT_MODE, secretKey, iv);
 85 |         byte[] retByte = cipher.doFinal(src);
 86 |         return new String(retByte);
 87 |     }
 88 | 
 89 |     public static String desDecrypt(String strKey ,String source) throws Exception {
 90 |         if (source == null || source.length() == 0){
 91 |             return null;
 92 |         }
 93 |         byte[] src = hex2byte(source.getBytes());
 94 |         Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
 95 |         DESKeySpec desKeySpec = new DESKeySpec(strKey.getBytes("UTF-8"));
 96 |         SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
 97 |         SecretKey secretKey = keyFactory.generateSecret(desKeySpec);
 98 |         IvParameterSpec iv = new IvParameterSpec(strParam.getBytes("UTF-8"));
 99 |         cipher.init(Cipher.DECRYPT_MODE, secretKey, iv);
100 |         byte[] retByte = cipher.doFinal(src);
101 |         return new String(retByte);
102 |     }
103 | 
104 | 
105 |     public static  String formatKey(String key){
106 |         // 固定长度
107 |         int length=8;
108 |         // 自动补位
109 |         return key+String.format("%1$0"+(length-key.length())+"d",0);
110 |     }
111 | 
112 | 
113 |     public static void main(String[] args) throws Exception {
114 |         System.out.println(EncryptHelper.desDecrypt("53c8927a4dd1e9b6f44c9d53af92c794"));
115 |         System.out.println(EncryptHelper.desEncrypt("Hello World!"));
116 | 
117 |     }
118 | }
119 | 
120 | 


--------------------------------------------------------------------------------
/LICENSE:
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--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # DES_GO_JAVA_DOTNET_PYTHON
 2 | DES 加密数据通用 四种语言的加密解密 。
 3 | 
 4 | 
 5 | * Python
 6 | 
 7 | ```bash
 8 | ➜  expbox python demo.py
 9 |     53c8927a4dd1e9b6f44c9d53af92c794
10 |     Hello World!    
11 | ```
12 | 
13 | * Golang
14 | 
15 | ```bash
16 | go run *.go
17 | 
18 | # 结果
19 | 53c8927a4dd1e9b6f44c9d53af92c794
20 | Hello World!
21 | 
22 | [Done] exited with code=0 in 0.776 seconds
23 | ```
24 | 
25 | * C#(.NET)
26 | 
27 | ```bash
28 | dotnet run Program.cs
29 | 
30 | ```
31 | 
32 | * Program.cs
33 | 
34 | ```C#
35 | using System;
36 | using System.Security.Cryptography;
37 | using System.IO; 
38 | using System.Text;
39 | namespace myApp
40 | {
41 |     public class Program
42 |     {
43 |          static void Main(string[] args)
44 |         {
45 |              Console.WriteLine("Hello World!");
46 |                     string data = "Hello World!";
47 |             string encryptData =  DES.Encrypt(data,"Passw0rd","Passw0rd");
48 |             Console.WriteLine("加密后数据 1："+encryptData);
49 | 
50 |             string decryptData =  DES.Decrypt(encryptData,"Passw0rd","Passw0rd");
51 |              Console.WriteLine("解密后数据 1："+decryptData);
52 |         }
53 |     }
54 | }
55 | ```
56 | 
57 | 
58 | * Java
59 | 
60 | ```java
61 |    //EncryptHelper 内
62 |    public static void main(String[] args) throws Exception {
63 |         System.out.println(EncryptHelper.desDecrypt("53c8927a4dd1e9b6f44c9d53af92c794"));
64 |         System.out.println(EncryptHelper.desEncrypt("Hello World!"));
65 | 
66 |     }
67 | 
68 | ```
69 | 
70 | ```bash
71 | Hello World!
72 | 53C8927A4DD1E9B6F44C9D53AF92C794
73 | 
74 | Process finished with exit code 0
75 | ```
76 | 
77 | 


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/demo.py:
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 1 | #!/usr/bin/python
 2 | # -*- coding: UTF-8 -*-
 3 | 
 4 | from DES import *;
 5 | 
 6 | 
 7 | 
 8 | def main():
 9 |     des = DES()
10 |     Des_IV = "Passw0rd"
11 |     encode = des.encrypt("Passw0rd",Des_IV,str("Hello World!"))
12 |     encode2 = des.decrypt("Passw0rd",Des_IV,str("53c8927a4dd1e9b6f44c9d53af92c794"))
13 |     print(encode)
14 | 
15 |     print(encode2)
16 | 
17 | main()


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