求助加密、解密的问题DES

[踽踽独行8844]

资料上找到的加密、解密类，DES算法的
加密类没问题，可以正常使用
解密类就有问题了，提示错误如下：
http://dl.vmall.com/c02nfzs9gt

错误位置在代码倒数第六行

请高人指教了，谢谢

        private static byte[] key = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
        private static byte[] iv = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };

        /// <summary>
        /// 
        /// </summary>
        /// <param name="notEncryptStr">待加密的明文字符串</param>
        /// <returns>加密后的字符串</returns>
        public static string EncryptString(string notEncryptStr)
        {
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();

            byte[] byteNotEncrypt = Encoding.UTF8.GetBytes(notEncryptStr);
            MemoryStream encryptMs = new MemoryStream();
            CryptoStream encryptCs = new CryptoStream(encryptMs, des.CreateEncryptor(key,iv), CryptoStreamMode.Write);

            //加密数据
            encryptCs.Write(byteNotEncrypt, 0, byteNotEncrypt.Length);
            encryptCs.FlushFinalBlock();
            encryptMs.Seek(0, SeekOrigin.Begin);

            //将加密后的数据读取出来
            byte[] byteEncrypt = new byte[1024];
            int i = encryptMs.Read(byteEncrypt, 0, 1024);

            encryptCs.Close();

            //将加密后的字节转换为BASE64编码
            string decryptStr = Convert.ToBase64String(byteEncrypt, 0, i);
            return decryptStr;
        }

        void test()
        {
            string str1 = "Hello";
            string str2 = myEncrypt.EncryptString(str1);
        }

        /// <summary>
        /// 解密
        /// </summary>
        /// <param name="decryptStr">待解密的密文字符串</param>
        /// <returns>解密后的字符串</returns>
        public static string DecryptString(string decryptStr)
        {
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();


            byte[] byteNotDecrypt = Convert.FromBase64String(decryptStr);
            MemoryStream decryptMs = new MemoryStream(byteNotDecrypt);
            CryptoStream decryptCs = new CryptoStream(decryptMs, des.CreateDecryptor(key, iv), CryptoStreamMode.Read);

            //解密数据
            byte[] byteDecrypt = new byte[1024];
            int i = decryptCs.Read(byteDecrypt, 0, 1024);//这里提示错误了，{"流不支持读取。"}
            decryptCs.Close();

            //将解密后的字节转换为BASE64编码
            string notEncryptStr = Encoding.UTF8.GetString(byteDecrypt, 0, i);
            return notEncryptStr;
        }
    }

[踽踽独行8844]

图片链接有问题

图片只能这里看了，华为网盘
http://dl.vmall.com/c02nfzs9gt

{"流不支持读取。"}
{System.Collections.ListDictionaryInternal}

[踽踽独行8844]

问题解决了，还是自身程序的问题
与加密类无关系

[宝_爸]

呵呵，分享下什么原因啊。