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當我加密字符串時收到錯誤信息,但是,當我嘗試解密字符串時收到錯誤消息,它說Input.Length無效。有任何想法嗎?C#TripleDES解密時輸入長度不正確
public class Crypt
{
public string Encrypt(string Key, string Input)
{
ICryptoTransform crypted = tran(Key).CreateEncryptor();
UTF8Encoding utf8 = new UTF8Encoding();
return utf8.GetString(crypted.TransformFinalBlock(utf8.GetBytes(Input), 0, Input.Length));
}
public string Decrypt(string Key, string Input)
{
ICryptoTransform crypted = tran(Key).CreateDecryptor();
UTF8Encoding utf8 = new UTF8Encoding();
return utf8.GetString(crypted.TransformFinalBlock(utf8.GetBytes(Input), 0, Input.Length));
}
private TripleDESCryptoServiceProvider tran(string Key)
{
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
UTF8Encoding utf8 = new UTF8Encoding();
TripleDESCryptoServiceProvider tDES = new TripleDESCryptoServiceProvider();
tDES.Key = md5.ComputeHash(utf8.GetBytes(Key));
tDES.Mode = CipherMode.ECB;
tDES.Padding = PaddingMode.PKCS7;
return tDES;
}
}
不需要'new UTF8Encoding()','Encoding.UTF8'已經可用。 – spender 2012-08-01 16:08:25