using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Runtime.Intrinsics.Arm;

using System.Security.Cryptography;

using System.Text;

using System.Threading.Tasks;

using Aes = System.Security.Cryptography.Aes;

namespace desMssql

{

    public class DesMS

    {

        //默认密钥向量

        private static byte[] Keys = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F };

        /// <summary>

        /// DES加密字符串

        /// </summary>

        /// <param name="encryptString">待加密的字符串</param>

        /// <param name="encryptKey">加密密钥,要求为16位</param>

        /// <returns>加密成功返回加密后的字符串，失败返回源串</returns>

        public static string DESEncrypt(string encryptString, string encryptKey = "Key123Ace#321Key")

        {

            try

            {

                byte[] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 16));

                byte[] rgbIV = Keys;

                byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);

                var DCSP = Aes.Create();

                MemoryStream mStream = new MemoryStream();

                CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);

                cStream.Write(inputByteArray, 0, inputByteArray.Length);

                cStream.FlushFinalBlock();

                return Convert.ToBase64String(mStream.ToArray());

            }

            catch (Exception ex)

            {

                return ex.Message + encryptString;

            }

        }

    }

}

   class Program

    {

        static void Main(string[] args)

        {

            var sql = DesMS.DESEncrypt("Data Source=10.31.60.6;Initial Catalog=HONGSHI_SQLSERVER_DATA;User ID=sa;Pwd=123");

            Console.WriteLine(sql);Console.ReadKey();

        }

    }

}

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Security.Cryptography;

using System.Text;

using System.Threading.Tasks;

namespace HONGSHI_Commando_Repository.Helpers

{

    public static class DesMssql

    {

        //默认密钥向量

        private static byte[] Keys = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F };

        /// <summary>

        /// DES解密字符串

        /// </summary>

        /// <param name="MSSQL">待解密的字符串</param>

        /// <param name="decryptKey">解密密钥,要求为16位,和加密密钥相同</param>

        /// <returns>解密成功返回解密后的字符串，失败返源串</returns>

        public static string DESDecrypt(string MSSQL, string decryptKey = "Key123Ace#321Key")

        {

            try

            {

                byte[] rgbKey = Encoding.UTF8.GetBytes(decryptKey.Substring(0, 16));

                byte[] rgbIV = Keys;

                byte[] inputByteArray = Convert.FromBase64String(MSSQL);

                var DCSP = Aes.Create();

                MemoryStream mStream = new MemoryStream();

                CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);

                Byte[] inputByteArrays = new byte[inputByteArray.Length];

                cStream.Write(inputByteArray, 0, inputByteArray.Length);

                cStream.FlushFinalBlock();

                return Encoding.UTF8.GetString(mStream.ToArray());

            }

            catch (Exception ex)

            {

                return ex.Message + MSSQL;

            }

        }

    }

}