/// <summary>
/// 解密
/// </summary>
/// <param name="encrypt">要解密的字串</param>
/// <param name="key">KEY</param>
/// <param name="IV">IV</param>
/// <returns>解密後的字串</returns>
private static string desDecryptBase64(string encrypt, string key, string IV)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
byte[] key = Encoding.ASCII.GetBytes(key);
byte[] iv = Encoding.ASCII.GetBytes(IV);
des.Key = key;
des.IV = iv;
byte[] dataByteArray = Convert.FromBase64String(encrypt);
using (MemoryStream ms = new MemoryStream())
{
using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write))
{
cs.Write(dataByteArray, 0, dataByteArray.Length);
cs.FlushFinalBlock();
return Encoding.UTF8.GetString(ms.ToArray());
}
}
}
2015年4月18日 星期六
[C#] 3DES解密
開發上用過的Method,紀錄在此。
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