blogjava's web log

          blogjava's web log
          ...

          一對加密解密類[導入]

          public ??? string ??Encrypt( string ??pToEncrypt,?? string ??sKey)??
          ????????
          {??
          ????????????DESCryptoServiceProvider??des??
          = ?? new ??DESCryptoServiceProvider();??
          ????????????
          byte []??inputByteArray?? = ??Encoding.Default.GetBytes(pToEncrypt);???
          ????????????des.Key??
          = ??ASCIIEncoding.ASCII.GetBytes(sKey);??
          ????????????des.IV??
          = ??ASCIIEncoding.ASCII.GetBytes(sKey);??
          ????????????MemoryStream??ms??
          = ?? new ??MemoryStream();??
          ????????????CryptoStream??cs??
          = ?? new ??CryptoStream(ms,des.CreateEncryptor(),CryptoStreamMode.Write);??
          ????????????cs.Write(inputByteArray,??
          0 ,??inputByteArray.Length);??
          ????????????cs.FlushFinalBlock();?????????????
          ????????????StringBuilder??ret??
          = ?? new ??StringBuilder();??
          ????????????
          foreach ( byte ??b?? in ??ms.ToArray())??
          ????????????
          {??
          ????????????????
          // Format??as??hex??
          ????????????????ret.AppendFormat( " {0:X2} " ,??b);??
          ????????????}
          ??
          ????????????ret.ToString();??
          ????????????
          return ??ret.ToString();??
          ????????}
          ??
          ????????
          /* *****************************************************************
          ?????????*?密碼解密
          ?????????*?*****************************************************************
          */

          ????????
          public ?? string ??Decrypt( string ??pToDecrypt,?? string ??sKey)??
          ????????
          {??
          ????????????DESCryptoServiceProvider??des??
          = ?? new ??DESCryptoServiceProvider();??????????????
          ????????????
          byte []??inputByteArray?? = ?? new ?? byte [pToDecrypt.Length?? / ?? 2 ];??
          ????????????
          for ( int ??x?? = ?? 0 ;??x?? < ??pToDecrypt.Length?? / ?? 2 ;??x ++ )??
          ????????????
          {??
          ????????????????
          int ??i?? = ??(Convert.ToInt32(pToDecrypt.Substring(x?? * ?? 2 ,?? 2 ),?? 16 ));??
          ????????????????inputByteArray[x]??
          = ??( byte )i;??
          ????????????}
          ??
          ????????????des.Key??
          = ??ASCIIEncoding.ASCII.GetBytes(sKey);??
          ????????????des.IV??
          = ??ASCIIEncoding.ASCII.GetBytes(sKey);??
          ????????????MemoryStream??ms??
          = ?? new ??MemoryStream();??
          ????????????CryptoStream??cs??
          = ?? new ??CryptoStream(ms,des.CreateDecryptor(),CryptoStreamMode.Write);?????????????
          ????????????cs.Write(inputByteArray,??
          0 ,??inputByteArray.Length);??
          ????????????cs.FlushFinalBlock();?????????????
          ????????????StringBuilder??ret??
          = ?? new ??StringBuilder();??
          ?????????????
          ????????????
          return ??System.Text.Encoding.Default.GetString(ms.ToArray());??
          ????????}

          posted on 2006-05-28 14:45 record java and net 閱讀(341) 評論(0)  編輯  收藏 所屬分類: dot net相關

          導航

          常用鏈接

          留言簿(44)

          新聞檔案

          2.動態語言

          3.工具箱

          9.文檔教程

          友情鏈接

          搜索

          最新評論

          主站蜘蛛池模板: 临桂县| 内乡县| 玛纳斯县| 襄樊市| 平顶山市| 栖霞市| 石狮市| 长宁县| 银川市| 方山县| 云和县| 犍为县| 资阳市| 南召县| 徐州市| SHOW| 凌源市| 镶黄旗| 西乡县| 崇文区| 温泉县| 松滋市| 北票市| 米易县| 沈阳市| 宕昌县| 柘城县| 冀州市| 太和县| 承德市| 资溪县| 德格县| 永宁县| 行唐县| 松阳县| 葫芦岛市| 钟祥市| 莱芜市| 高要市| 冷水江市| 隆安县|