網址參數加密

網址: https://aaa.com/controller/?參數1&參數2

加密後參數=Server.UrlEncode(參數.aesEncryptBase64(key))

解密後參數=Request.QueryString[0].aesDecryptBase64(key)

參數1=解密後參數.Split('&')[0]

參數2=解密後參數.Split('&')[1]

※加密使用AES

public static string aesEncryptBase64(this string SourceStr, string CryptoKey)

        {

            string encrypt = "";

            AesCryptoServiceProvider aes = new AesCryptoServiceProvider();

            MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();

            SHA256CryptoServiceProvider sha256 = new SHA256CryptoServiceProvider();

            byte[] key = sha256.ComputeHash(Encoding.UTF8.GetBytes(CryptoKey));

            byte[] iv = md5.ComputeHash(Encoding.UTF8.GetBytes(CryptoKey));

            aes.Key = key;

            aes.IV = iv;

            byte[] dataByteArray = Encoding.UTF8.GetBytes(SourceStr);

            using (MemoryStream ms = new MemoryStream())

            using (CryptoStream cs = new CryptoStream(ms, aes.CreateEncryptor(), CryptoStreamMode.Write))

            {

                cs.Write(dataByteArray, 0, dataByteArray.Length);

                cs.FlushFinalBlock();

                encrypt = Convert.ToBase64String(ms.ToArray());

            }

            return encrypt;

        }

        public static string aesDecryptBase64(this string SourceStr, string CryptoKey)

        {

            string decrypt = "";

            AesCryptoServiceProvider aes = new AesCryptoServiceProvider();

            MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();

            SHA256CryptoServiceProvider sha256 = new SHA256CryptoServiceProvider();

            byte[] key = sha256.ComputeHash(Encoding.UTF8.GetBytes(CryptoKey));

            byte[] iv = md5.ComputeHash(Encoding.UTF8.GetBytes(CryptoKey));

            aes.Key = key;

            aes.IV = iv;

            byte[] dataByteArray = Convert.FromBase64String(SourceStr);

            using (MemoryStream ms = new MemoryStream())

            {

                using (CryptoStream cs = new CryptoStream(ms, aes.CreateDecryptor(), CryptoStreamMode.Write))

                {

                    cs.Write(dataByteArray, 0, dataByteArray.Length);

                    cs.FlushFinalBlock();

                    decrypt = Encoding.UTF8.GetString(ms.ToArray());

                }

            }

            return decrypt;

        }