JAVA和C# 3DES加密解密

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原文轉自：http://blog.csdn.net/sdfkfkd/article/details/6004847

 

最近 一個項目.net 要調用Java的WEB SERVICE，資料採用3DES加密，涉及到兩種語言3DES一致性的問題，
下面分享一下，
這裡的KEY採用Base64編碼，便用分發，因為Java的Byte範圍為-128至127，c#的Byte範圍是0-255
核心是確定Mode和Padding，關於這兩個的意思可以搜尋3DES演算法相關文章
一個是C#採用CBC Mode，PKCS7 Padding,Java採用CBC Mode，PKCS5Padding Padding,
另一個是C#採用ECB Mode，PKCS7 Padding,Java採用ECB Mode，PKCS5Padding Padding,
Java的ECB模式不需要IV
對字元加密時，雙方採用的都是UTF-8編碼

下面是C#代碼

/// <summary>  /// DES3加密解密  /// </summary>  public class Des3  {      #region CBC模式**      /// <summary>      /// DES3 CBC模式加密      /// </summary>      /// <param name="key">密鑰</param>      /// <param name="iv">IV</param>      /// <param name="data">明文的byte數組</param>      /// <returns>密文的byte數組</returns>      public static byte[] Des3EncodeCBC( byte[] key, byte[] iv, byte[] data )      {          //複製於MSDN          try          {              // Create a MemoryStream.              MemoryStream mStream = new MemoryStream();              TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider();              tdsp.Mode = CipherMode.CBC;             //預設值              tdsp.Padding = PaddingMode.PKCS7;       //預設值              // Create a CryptoStream using the MemoryStream               // and the passed key and initialization vector (IV).              CryptoStream cStream = new CryptoStream( mStream,                  tdsp.CreateEncryptor( key, iv ),                  CryptoStreamMode.Write );              // Write the byte array to the crypto stream and flush it.              cStream.Write( data, 0, data.Length );              cStream.FlushFinalBlock();              // Get an array of bytes from the               // MemoryStream that holds the               // encrypted data.              byte[] ret = mStream.ToArray();              // Close the streams.              cStream.Close();              mStream.Close();              // Return the encrypted buffer.              return ret;          }          catch ( CryptographicException e )          {              Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message );              return null;          }      }      /// <summary>      /// DES3 CBC模式解密      /// </summary>      /// <param name="key">密鑰</param>      /// <param name="iv">IV</param>      /// <param name="data">密文的byte數組</param>      /// <returns>明文的byte數組</returns>      public static byte[] Des3DecodeCBC( byte[] key, byte[] iv, byte[] data )      {          try          {              // Create a new MemoryStream using the passed               // array of encrypted data.              MemoryStream msDecrypt = new MemoryStream( data );              TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider();              tdsp.Mode = CipherMode.CBC;              tdsp.Padding = PaddingMode.PKCS7;              // Create a CryptoStream using the MemoryStream               // and the passed key and initialization vector (IV).              CryptoStream csDecrypt = new CryptoStream( msDecrypt,                  tdsp.CreateDecryptor( key, iv ),                  CryptoStreamMode.Read );              // Create buffer to hold the decrypted data.              byte[] fromEncrypt = new byte[data.Length];              // Read the decrypted data out of the crypto stream              // and place it into the temporary buffer.              csDecrypt.Read( fromEncrypt, 0, fromEncrypt.Length );              //Convert the buffer into a string and return it.              return fromEncrypt;          }          catch ( CryptographicException e )          {              Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message );              return null;          }      }      #endregion      #region ECB模式      /// <summary>      /// DES3 ECB模式加密      /// </summary>      /// <param name="key">密鑰</param>      /// <param name="iv">IV(當模式為ECB時，IV無用)</param>      /// <param name="str">明文的byte數組</param>      /// <returns>密文的byte數組</returns>      public static byte[] Des3EncodeECB( byte[] key, byte[] iv, byte[] data )      {          try          {              // Create a MemoryStream.              MemoryStream mStream = new MemoryStream();              TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider();              tdsp.Mode = CipherMode.ECB;              tdsp.Padding = PaddingMode.PKCS7;              // Create a CryptoStream using the MemoryStream               // and the passed key and initialization vector (IV).              CryptoStream cStream = new CryptoStream( mStream,                  tdsp.CreateEncryptor( key, iv ),                  CryptoStreamMode.Write );              // Write the byte array to the crypto stream and flush it.              cStream.Write( data, 0, data.Length );              cStream.FlushFinalBlock();              // Get an array of bytes from the               // MemoryStream that holds the               // encrypted data.              byte[] ret = mStream.ToArray();              // Close the streams.              cStream.Close();              mStream.Close();              // Return the encrypted buffer.              return ret;          }          catch ( CryptographicException e )          {              Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message );              return null;          }      }      /// <summary>      /// DES3 ECB模式解密      /// </summary>      /// <param name="key">密鑰</param>      /// <param name="iv">IV(當模式為ECB時，IV無用)</param>      /// <param name="str">密文的byte數組</param>      /// <returns>明文的byte數組</returns>      public static byte[] Des3DecodeECB( byte[] key, byte[] iv, byte[] data )      {          try          {              // Create a new MemoryStream using the passed               // array of encrypted data.              MemoryStream msDecrypt = new MemoryStream( data );              TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider();              tdsp.Mode = CipherMode.ECB;              tdsp.Padding = PaddingMode.PKCS7;              // Create a CryptoStream using the MemoryStream               // and the passed key and initialization vector (IV).              CryptoStream csDecrypt = new CryptoStream( msDecrypt,                  tdsp.CreateDecryptor( key, iv ),                  CryptoStreamMode.Read );              // Create buffer to hold the decrypted data.              byte[] fromEncrypt = new byte[data.Length];              // Read the decrypted data out of the crypto stream              // and place it into the temporary buffer.              csDecrypt.Read( fromEncrypt, 0, fromEncrypt.Length );              //Convert the buffer into a string and return it.              return fromEncrypt;          }          catch ( CryptographicException e )          {              Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message );              return null;          }      }      #endregion      /// <summary>      /// 類<a href="http://lib.csdn.net/base/softwaretest" class=‘replace_word‘ title="軟體測試知識庫" target=‘_blank‘ style=‘color:#df3434; font-weight:bold;‘>測試</a>      /// </summary>      public static void Test()      {          System.Text.Encoding utf8 = System.Text.Encoding.UTF8;          //key為abcdefghijklmnopqrstuvwx的Base64編碼          byte[] key = Convert.FromBase64String( "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4" );          byte[] iv = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };      //當模式為ECB時，IV無用          byte[] data = utf8.GetBytes( "中國ABCabc123" );          System.Console.WriteLine( "ECB模式:" );          byte[] str1 = Des3.Des3EncodeECB( key, iv, data );          byte[] str2 = Des3.Des3DecodeECB( key, iv, str1 );          System.Console.WriteLine( Convert.ToBase64String( str1 ) );          System.Console.WriteLine( System.Text.Encoding.UTF8.GetString( str2 ) );          System.Console.WriteLine();          System.Console.WriteLine( "CBC模式:" );          byte[] str3 = Des3.Des3EncodeCBC( key, iv, data );          byte[] str4 = Des3.Des3DecodeCBC( key, iv, str3 );          System.Console.WriteLine( Convert.ToBase64String( str3 ) );          System.Console.WriteLine( utf8.GetString( str4 ) );          System.Console.WriteLine();      }  }  

 

接著是Java代碼

package com.mes.util;import java.security.Key;import java.util.HashMap;import java.util.Map;import javax.crypto.Cipher;import javax.crypto.SecretKeyFactory;import javax.crypto.spec.DESedeKeySpec;import javax.crypto.spec.IvParameterSpec;import sun.misc.BASE64Decoder;@SuppressWarnings("restriction")public class ThreeDESCBC {    /**     *      * @Description ECB加密，不要IV     * @param key 密鑰     * @param data 明文     * @return Base64編碼的密文     * @throws Exception     * @author Shindo        * @date 2016年11月15日 下午4:42:56     */    public static byte[] des3EncodeECB(byte[] key, byte[] data) throws Exception {        Key deskey = null;        DESedeKeySpec spec = new DESedeKeySpec(key);        SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");        deskey = keyfactory.generateSecret(spec);        Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding");        cipher.init(Cipher.ENCRYPT_MODE, deskey);        byte[] bOut = cipher.doFinal(data);        return bOut;    }    /**     *      * @Description ECB解密，不要IV     * @param key 密鑰     * @param data Base64編碼的密文     * @return 明文     * @throws Exception     * @author Shindo        * @date 2016年11月15日 下午5:01:23     */    public static byte[] ees3DecodeECB(byte[] key, byte[] data) throws Exception {        Key deskey = null;        DESedeKeySpec spec = new DESedeKeySpec(key);        SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");        deskey = keyfactory.generateSecret(spec);        Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding");        cipher.init(Cipher.DECRYPT_MODE, deskey);        byte[] bOut = cipher.doFinal(data);        return bOut;    }    /**     *      * @Description CBC加密     * @param key 密鑰     * @param keyiv IV     * @param data 明文     * @return Base64編碼的密文     * @throws Exception     * @author Shindo        * @date 2016年11月15日 下午5:26:46     */    public static byte[] des3EncodeCBC(byte[] key, byte[] keyiv, byte[] data) throws Exception {        Key deskey = null;        DESedeKeySpec spec = new DESedeKeySpec(key);        SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");        deskey = keyfactory.generateSecret(spec);        Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding");        IvParameterSpec ips = new IvParameterSpec(keyiv);        cipher.init(Cipher.ENCRYPT_MODE, deskey, ips);        byte[] bOut = cipher.doFinal(data);        return bOut;    }    /**     *      * @Description CBC解密     * @param key 密鑰     * @param keyiv IV     * @param data Base64編碼的密文     * @return 明文     * @throws Exception     * @author Shindo        * @date 2016年11月16日 上午10:13:49     */    public static byte[] des3DecodeCBC(byte[] key, byte[] keyiv, byte[] data) throws Exception {        Key deskey = null;        DESedeKeySpec spec = new DESedeKeySpec(key);        SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");        deskey = keyfactory.generateSecret(spec);        Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding");        IvParameterSpec ips = new IvParameterSpec(keyiv);        cipher.init(Cipher.DECRYPT_MODE, deskey, ips);        byte[] bOut = cipher.doFinal(data);        return bOut;    }    /**     *      * @Description 浦發所屬渠道入口3DES解密方法      * @param paras 加密參數     * @param key 3DES密鑰     * @return 解密明文     * @author Shindo        * @throws Exception      * @date 2016年11月22日 上午9:34:07     */    public Map<String, String> parasDecryptCBC(Map<String, String> paras, String key) throws Exception {        Map<String, String> map = new HashMap<String, String>();        try {            byte[] pf_3des_key = new BASE64Decoder().decodeBuffer(key);            byte[] keyiv = { 1, 2, 3, 4, 5, 6, 7, 8 };// 3DES解密IV值            String telePhone = paras.get("telePhone");// 浦發新介面電話不加密            byte[] card = new BASE64Decoder().decodeBuffer(ControllerUtils.URLDecode(paras.get("cardNo")));            byte[] cert = new BASE64Decoder().decodeBuffer(ControllerUtils.URLDecode(paras.get("certNo")));            String cardNo = new String(des3DecodeCBC(pf_3des_key, keyiv, card), "UTF-8");// 卡號            String certNo = new String(des3DecodeCBC(pf_3des_key, keyiv, cert), "UTF-8");// 證件號碼            map.put("telePhone", telePhone);            map.put("cardNo", cardNo);            map.put("certNo", certNo);        } catch (Exception e) {            throw new Exception(" 浦發所屬渠道入口參數3DES CBC解密失敗!");        }        return map;    }    /**     *      * @Description 調試方法     * @param args     * @throws Exception     * @author Shindo        * @date 2016年11月22日 上午9:28:22     */    public static void main(String[] args) throws Exception {        byte[] key = new BASE64Decoder().decodeBuffer("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4");        byte[] keyiv = { 1, 2, 3, 4, 5, 6, 7, 8 };//        byte[] data = "420106198203279258".getBytes("UTF-8");        /*System.out.println("ECB加密解密");        byte[] str3 = des3EncodeECB(key, data);        byte[] str4 = ees3DecodeECB(key, str3);        System.out.println(new BASE64Encoder().encode(str3));        System.out.println(new String(str4, "UTF-8"));        System.out.println();*/        /*System.out.println("CBC加密解密");        byte[] str5 = des3EncodeCBC(key, keyiv, data);        byte[] str6 = des3DecodeCBC(key, keyiv, str5);        System.out.println(new BASE64Encoder().encode(str5));        System.out.println(new String(str6, "UTF-8"));*/        String str7 = "uHrew7Thp2taL2NJpSJhF2mdFMP7BZ1W";        byte[] str8 = new BASE64Decoder().decodeBuffer(str7);        byte[] str9 = des3DecodeCBC(key, keyiv, str8);        System.out.println(new String(str9, "UTF-8"));    }}

　　

JAVA和C# 3DES加密解密