c#加密后用java解密(采用3DES加密)

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C#加密核心代码：

        //密钥        private const string sKey = "A3F2569DESJEIWBCJOTY45DYQWF68H1Y";        //矢量，矢量可以为空        private const string sIV = "qcDY6X+aPLw=";        //构造一个对称算法        private SymmetricAlgorithm mCSP = new TripleDESCryptoServiceProvider();        #region public string EncryptString(string Value)        /// 加密字符串        /// 输入的字符串        /// 加密后的字符串        public string EncryptString(string Value)        {            ICryptoTransform ct;            MemoryStream ms;            CryptoStream cs;            byte[] byt;            mCSP.Key = Convert.FromBase64String(sKey);            mCSP.IV = Convert.FromBase64String(sIV);            //指定加密的运算模式            mCSP.Mode = System.Security.Cryptography.CipherMode.ECB;            //获取或设置加密算法的填充模式            mCSP.Padding = System.Security.Cryptography.PaddingMode.PKCS7;            ct = mCSP.CreateEncryptor(mCSP.Key, mCSP.IV);            byt = Encoding.UTF8.GetBytes(Value);            ms = new MemoryStream();            cs = new CryptoStream(ms, ct, CryptoStreamMode.Write);            cs.Write(byt, 0, byt.Length);            cs.FlushFinalBlock();            cs.Close();            return Convert.ToBase64String(ms.ToArray());        }

JAVA解密核心代码：

// 把密钥参数转为byte数组 public byte[] dBase64(String parm) throws IOException {  BASE64Decoder dec = new BASE64Decoder();  byte[] dnParm = dec.decodeBuffer(parm);  return dnParm; } /**  * 对 Byte 数组进行解密  * @param buff  *            要解密的数据  * @return 返回加密后的 String  */ public static String createDecryptor(byte[] buff)   throws NoSuchPaddingException, NoSuchAlgorithmException,   UnsupportedEncodingException {  try {   c.init(Cipher.DECRYPT_MODE, deskey);// 初始化密码器，用密钥deskey,进入解密模式   cipherByte = c.doFinal(buff);  } catch (java.security.InvalidKeyException ex) {   ex.printStackTrace();  } catch (javax.crypto.BadPaddingException ex) {   ex.printStackTrace();  } catch (javax.crypto.IllegalBlockSizeException ex) {   ex.printStackTrace();  }  return (new String(cipherByte, "UTF-8")); } public void getKey(String key) throws IOException, InvalidKeyException,   InvalidKeySpecException {  byte[] dKey = dBase64(key);  try {   deskey = new javax.crypto.spec.SecretKeySpec(dKey, Algorithm);   c = Cipher.getInstance(Algorithm);  } catch (NoSuchPaddingException ex) {  } catch (NoSuchAlgorithmException ex) {  } }

源码下载地址：http://download.csdn.net/detail/u011213088/5986257