DotNet中用到的加密算法总结

  1public class CryptUtil
  2    {
  3        public static string DecryptString(string input)
  4        {
  5            if (input.Equals(string.Empty))
  6            {
  7                return input;
  8            }
  9
 10            byte[] byKey = {0x63, 0x68, 0x65, 0x6E, 0x79, 0x75, 0x61, 0x6E};
 11            byte[] IV = {0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10};
 12            byte[] inputByteArray = new Byte[input.Length];
 13            DESCryptoServiceProvider des = new DESCryptoServiceProvider();
 14            inputByteArray = Convert.FromBase64String(input);
 15            MemoryStream ms = new MemoryStream();
 16            CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(byKey, IV), CryptoStreamMode.Write);
 17            cs.Write(inputByteArray, 0, inputByteArray.Length);
 18            cs.FlushFinalBlock();
 19            Encoding encoding = new UTF8Encoding();
 20            return encoding.GetString(ms.ToArray());

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