AES 加密 解密

        /// <summary>
        /// AES 加密
        /// </summary>
        /// <param name="input">待加密的字符串</param>
        /// <param name="key">加密密钥,要求为32位</param>
        /// <returns>加密成功返回加密后的字符串，失败 throw</returns>
        public static string EncryptAES(string CallPassword, string input, string key)
        {
            if (CallPassword != GetCallCert())
                return "";

            byte[] inputData = UTF8Encoding.UTF8.GetBytes(input);

            RijndaelManaged rijndaelProvider = new RijndaelManaged();
            rijndaelProvider.Key = UTF8Encoding.UTF8.GetBytes(key.Substring(0, 32));
            rijndaelProvider.IV = AES_IV;
            ICryptoTransform rijndaelEncrypt = rijndaelProvider.CreateEncryptor();

            byte[] encryptedData = rijndaelEncrypt.TransformFinalBlock(inputData, 0, inputData.Length);

            return Convert.ToBase64String(encryptedData);
        }

        /// <summary>
        /// AES 解密
        /// </summary>
        /// <param name="input">待解密的字符串</param>
        /// <param name="key">解密密钥,要求为32位,和加密密钥相同</param>
        /// <returns>解密成功返回解密后的字符串，失败 throw</returns>
        public static string DecryptAES(string CallPassword, string input, string key)
        {
            if (CallPassword != GetCallCert())
                return "";

            byte[] inputData = Convert.FromBase64String(input);

            RijndaelManaged rijndaelProvider = new RijndaelManaged();
            rijndaelProvider.Key = UTF8Encoding.UTF8.GetBytes(key.Substring(0, 32));
            rijndaelProvider.IV = AES_IV;
            ICryptoTransform rijndaelDecrypt = rijndaelProvider.CreateDecryptor();

            byte[] decryptedData = rijndaelDecrypt.TransformFinalBlock(inputData, 0, inputData.Length);

            return UTF8Encoding.UTF8.GetString(decryptedData);
        }