.NET AES加解密（128位）

AES加密（128位）：

        /// <summary>
        /// 有密码的AES加密 
        /// </summary>
        internal static string Encrypt(string toEncrypt)
        {
            var keyArray = Encoding.GetEncoding(Charset).GetBytes(key);;
            var toEncryptArray = Encoding.GetEncoding(Charset).GetBytes(toEncrypt);
            using (var acsp = new AesCryptoServiceProvider { KeySize = 128, BlockSize = 128 })
            {
                acsp.GenerateIV();
                using (var aes = new AesCryptoServiceProvider { Key = keyArray, IV = acsp.IV, Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 })
                {
                    byte[] resultArray;
                    using (var cTransform = aes.CreateEncryptor())
                    {
                        resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
                    }
                    return Convert.ToBase64String(resultArray);
                }
            }
        }

AES解密（128位）：

        /// <summary>
        /// AES解密
        /// </summary>
        internal static string Decrypt(string toDecrypt, string key)
        {
            var keyArray = Encoding.GetEncoding(Charset).GetBytes(key);
            var toDecryptArray = Convert.FromBase64String(toDecrypt);
            using (var acsp = new AesCryptoServiceProvider { KeySize = 128, BlockSize = 128 })
            {
                acsp.GenerateIV();
                using (var aes = new AesCryptoServiceProvider { Key = keyArray, IV = acsp.IV, Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 })
                {
                    byte[] resultArray;
                    using (var cTransform = aes.CreateDecryptor())
                    {
                        resultArray = cTransform.TransformFinalBlock(toDecryptArray, 0, toDecryptArray.Length);
                    }
                    return Encoding.GetEncoding(Charset).GetString(resultArray);
                }
            }
        }