.NetDES加密解密（不带向量）

///

/// DES加密字符串
///

/// 待加密的字符串
/// 密钥
/// 加密成功返回加密后的字符串&＃xff0c;失败返回源串
public static string EncryptDES(string encryptString, byte[] Key)
{
try
{
byte[] inputByteArray &＃61; Encoding.UTF8.GetBytes(encryptString);
DESCryptoServiceProvider des &＃61; new DESCryptoServiceProvider();
des.Key &＃61; Key;
des.Mode &＃61; CipherMode.ECB;
MemoryStream mStream &＃61; new MemoryStream();
CryptoStream cStream &＃61; new CryptoStream(mStream, des.CreateEncryptor(), CryptoStreamMode.Write);
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
return Convert.ToBase64String(mStream.ToArray());
}
catch
{
return encryptString;
}
}
///

/// DES解密字符串
///

/// 待解密的字符串
/// 解密成功返回解密后的字符串&＃xff0c;失败返源串
public static string DecryptDES(string decryptString, byte[] Key)
{
try
{
byte[] inputByteArray &＃61; Convert.FromBase64String(decryptString);
DESCryptoServiceProvider des &＃61; new DESCryptoServiceProvider();
des.Key &＃61; Key;
des.Mode &＃61; CipherMode.ECB;
MemoryStream mStream &＃61; new MemoryStream();
CryptoStream cStream &＃61; new CryptoStream(mStream, des.CreateDecryptor(), CryptoStreamMode.Write);
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
return Encoding.UTF8.GetString(mStream.ToArray());
}
catch
{
return decryptString;
}
}