URL参数加密解密过程
加密代码 1 public static string Encode(string str, string key) 2 { 3 DESCryptoServiceProvider provider = new DESCryptoServiceProvider(); 4 provider.Key = Encoding.ASCII.GetBytes(key.Substring(0, 8)); 5 provider.IV = Encoding.ASCII.GetBytes(key.Substring(0, 8)); 6 byte[] bytes = Encoding.UTF8.GetBytes(str); 7 MemoryStream stream = new MemoryStream(); 8 CryptoStream stream2 = new CryptoStream(stream, provider.CreateEncryptor(), CryptoStreamMode.Write); 9 stream2.Write(bytes, 0, bytes.Length); 10 stream2.FlushFinalBlock(); 11 StringBuilder builder = new StringBuilder(); 12 foreach (byte num in stream.ToArray()) 13 { 14 builder.AppendFormat("{0:X2}", num); 15 } 16 stream.Close(); 17 return builder.ToString(); 18 } 解密代码 public static string Decode(string str, string key) { DESCryptoServiceProvider provider = new DESCryptoServiceProvider(); provider.Key = Encoding.ASCII.GetBytes(key.Substring(0, 8)); provider.IV = Encoding.ASCII.GetBytes(key.Substring(0, 8)); byte[] buffer = new byte[str.Length / 2]; for (int i = 0; i < (str.Length / 2); i++) { int num2 = Convert.ToInt32(str.Substring(i * 2, 2), 0x10);   |
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