C# 3DES加密 解密

標籤：

    /// <summary>    ///3DES加密    /// </summary>    /// <param name="originalValue">加密資料</param>    /// <param name="key">24位字元的密鑰字串</param>    /// <param name="IV">8位字元的初始化向量字串</param>    /// <returns></returns>    public string DESEncrypt(string originalValue, string key, string IV)    {        SymmetricAlgorithm sa;        ICryptoTransform ct;        MemoryStream ms;        CryptoStream cs;        byte[] byt;        sa = new TripleDESCryptoServiceProvider();        sa.Key = Encoding.UTF8.GetBytes(key);        sa.IV = Encoding.UTF8.GetBytes(IV);        ct = sa.CreateEncryptor();        byt = Encoding.UTF8.GetBytes(originalValue);        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());    }     /// <summary>    /// 3DES解密     /// </summary>    /// <param name="data">解密資料</param>    /// <param name="key">24位字元的密鑰字串(需要和加密時相同)</param>    /// <param name="iv">8位字元的初始化向量字串(需要和加密時相同)</param>    /// <returns></returns>    public static string DESDecrypst(string data, string key, string IV)    {        SymmetricAlgorithm mCSP = new TripleDESCryptoServiceProvider() ;        mCSP.Key = Encoding.UTF8.GetBytes(key);        mCSP.IV = Encoding.UTF8.GetBytes(IV);        ICryptoTransform ct;        MemoryStream ms;        CryptoStream cs;        byte[] byt;        ct = mCSP.CreateDecryptor(mCSP.Key, mCSP.IV);        byt = Convert.FromBase64String(data);        ms = new MemoryStream();        cs = new CryptoStream(ms, ct, CryptoStreamMode.Write);        cs.Write(byt, 0, byt.Length);        cs.FlushFinalBlock();        cs.Close();        return Encoding.UTF8.GetString(ms.ToArray());    }


調用方法：

String desKey = "1dcrm4goRY8KODsgV1PPuHLB";//24位密鑰
String desIv = "QCsJ2SKR"; ///8位向量

 

var request = DESEncrypt("123456789", desKey, desIv);//加密

var request = DESDecrypt("123456789", desKey, desIv);//解密

 

 

 

C# 3DES加密 解密