C#des加密

  public static string ToDESEncrypt(string encryptString, string sKey)
        {
            try
            {
                byte[] keyBytes = Encoding.UTF8.GetBytes(sKey);
                byte[] keyIV = keyBytes;
                byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);

                DESCryptoServiceProvider desProvider = new DESCryptoServiceProvider();

                // java 默认的是ECB模式，PKCS5padding；c#默认的CBC模式，PKCS7padding 所以这里我们默认使用ECB方式
                desProvider.Mode = CipherMode.ECB;
                MemoryStream memStream = new MemoryStream();
                CryptoStream crypStream = new CryptoStream(memStream, desProvider.CreateEncryptor(keyBytes, keyIV), CryptoStreamMode.Write);

                crypStream.Write(inputByteArray, 0, inputByteArray.Length);
                crypStream.FlushFinalBlock();
                return Convert.ToBase64String(memStream.ToArray());

            }
            catch
            {
                return encryptString;
            }
        }