BN089-BS开发框架MVC4版/source20131023/Zephyr.Net/Zephyr.Utils/Security/DES.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Security.Cryptography;
using System.IO;
using Zephyr.Utils;
namespace Zephyr.Utils
{
    public partial class ZEncypt
    {
        /// <summary>
        /// 32位Key值：
        /// </summary>
        private static byte[] DESKey = new byte[] { 0x03, 0x0B, 0x13, 0x1B, 0x23, 0x2B, 0x33, 0x3B, 0x43, 0x4B, 0x9B, 0x93, 0x8B, 0x83, 0x7B, 0x73, 0x6B, 0x63, 0x5B, 0x53, 0xF3, 0xFB, 0xA3, 0xAB, 0xB3, 0xBB, 0xC3, 0xEB, 0xE3, 0xDB, 0xD3, 0xCB };

        #region DES加密
        /// <summary>
        /// DES加密
        /// </summary>
        /// <param name="strSource">待加密字串</param>
        /// <returns>加密后的字符串</returns>
        public static string DESEncrypt(string strSource)
        {
            return DESEncrypt(strSource, DESKey);
        }
        /// <summary>
        /// DES加密
        /// </summary>
        /// <param name="strSource">待加密字串</param>
        /// <param name="key">Key值</param>
        /// <returns>加密后的字符串</returns>
        public static string DESEncrypt(string strSource, byte[] key)
        {
            SymmetricAlgorithm sa = Rijndael.Create();
            sa.Key = key;
            sa.Mode = CipherMode.ECB;
            sa.Padding = PaddingMode.Zeros;
            MemoryStream ms = new MemoryStream();
            CryptoStream cs = new CryptoStream(ms, sa.CreateEncryptor(), CryptoStreamMode.Write);
            byte[] byt = Encoding.Unicode.GetBytes(strSource);
            cs.Write(byt, 0, byt.Length);
            cs.FlushFinalBlock();
            cs.Close();
            return Convert.ToBase64String(ms.ToArray());
        }
        #endregion

        #region DES解密
        /// <summary>
        /// DES解密
        /// </summary>
        /// <param name="strSource">待解密的字串</param>
        /// <returns>解密后的字符串</returns>
        public static string DESDecrypt(string strSource)
        {
            return DESDecrypt(strSource, DESKey);
        }
        /// <summary>
        /// DES解密
        /// </summary>