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jQuery+C#實(shí)現(xiàn)參數(shù)RSA加密傳輸功能【附j(luò)sencrypt.js下載】

更新時(shí)間：2017年06月26日 09:27:43 作者：隨緣夢(mèng)中人

這篇文章主要介紹了jQuery+C#實(shí)現(xiàn)參數(shù)RSA加密傳輸功能,結(jié)合具體實(shí)例形式分析了js使用jsencrypt.js插件前端字符數(shù)據(jù)處理傳輸及C#后臺(tái)數(shù)據(jù)轉(zhuǎn)換與RSA加密相關(guān)操作技巧,并附帶jsencrypt.js供讀者下載參考使用,需要的朋友可以參考下

本文實(shí)例講述了jQuery+C#實(shí)現(xiàn)參數(shù)RSA加密傳輸功能。分享給大家供大家參考，具體如下：

注意：

參數(shù)傳遞的+號(hào)處理，在傳輸時(shí)會(huì)把+變成空格，不處理后端就報(bào)錯(cuò)了。

1、前端代碼

<!DOCTYPE html>
<html>
<head>
  <meta name="viewport" content="width=device-width" />
  <title>Login</title>
  <script src="jquery-1.10.2.min.js"></script>
  <script src="jsencrypt.min.js"></script>
  <script type="text/javascript">
    $(function () {
      var encrypt = new JSEncrypt();
      encrypt.setPublicKey($("#tra").val());
      var data = encrypt.encrypt("123456789");
      alert(data);
      $("#btn").click(function () {
        $.ajax({
          url: '@Url.Action("Login")',
          data: "pwd=" + encodeURI(data).replace(/\+/g, '%2B'), //+號(hào)的處理：因?yàn)閿?shù)據(jù)在網(wǎng)絡(luò)上傳輸時(shí)，非字母數(shù)字字符都將被替換成百分號(hào)（%）后跟兩位十六進(jìn)制數(shù)，而base64編碼在傳輸?shù)胶蠖说臅r(shí)候，+會(huì)變成空格，因此先替換掉。后端再替換回來(lái)
          type: 'post',
          success: function (msg) {
            alert(msg);
          }
        });
      });
    });
  </script>
</head>
<body>
  <div>
    <input type="button" id="btn" value="點(diǎn)我" />
    <textarea id="tra" rows="15" cols="65">
      MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCa4KHNwDX44gGmmIAtRu4gjVYt
GWZzcm4t+1wjUD4dn7fMLPvuK7ai4UrfDeEJE1RPwudJw+lJ6crql8wSIg7/DbTl
      G3ihsCT6dT9H5B9OoeR7K9VWUesaW/iyVL6HXiYOANabW14pvJATDmdq91Tfgp6P
      SQyvdfiRdV4r07crpQIDAQAB
    </textarea>
    <hr/>
    注意+號(hào)的處理
  </div>
</body>
</html>

2、后端代碼

public class IndexController : Controller
{
    public ActionResult Login()
    {
      return View();
    }
    [HttpPost]
    public ActionResult Login(string pwd)
    {
      //密鑰格式要生成pkcs#1格式的  而不是pkcs#8格式的
      string privateKey = @"MIICWwIBAAKBgQCa4KHNwDX44gGmmIAtRu4gjVYtGWZzcm4t+1wjUD4dn7fMLPvuK7ai4UrfDeEJE1RPwudJw+lJ6crql8wSIg7/DbTlG3ihsCT6dT9H5B9OoeR7K9VW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";
      try
      {
        RSACryptoServiceProvider rsaCryptoServiceProvider = CreateRsaProviderFromPrivateKey(privateKey);
        //把+號(hào)，再替換回來(lái)
        byte[] res = rsaCryptoServiceProvider.Decrypt(Convert.FromBase64String(pwd.Replace("%2B","+")), false);
        return Content(Encoding.UTF8.GetString(res));
      }
      catch (Exception exception)
      {
      }
      return Content("");
    }
    private RSACryptoServiceProvider CreateRsaProviderFromPrivateKey(string privateKey)
    {
      var privateKeyBits = System.Convert.FromBase64String(privateKey);
      var RSA = new RSACryptoServiceProvider();
      var RSAparams = new RSAParameters();
      using (BinaryReader binr = new BinaryReader(new MemoryStream(privateKeyBits)))
      {
        byte bt = 0;
        ushort twobytes = 0;
        twobytes = binr.ReadUInt16();
        if (twobytes == 0x8130)
          binr.ReadByte();
        else if (twobytes == 0x8230)
          binr.ReadInt16();
        else
          throw new Exception("Unexpected value read binr.ReadUInt16()");
        twobytes = binr.ReadUInt16();
        if (twobytes != 0x0102)
          throw new Exception("Unexpected version");
        bt = binr.ReadByte();
        if (bt != 0x00)
          throw new Exception("Unexpected value read binr.ReadByte()");
        RSAparams.Modulus = binr.ReadBytes(GetIntegerSize(binr));
        RSAparams.Exponent = binr.ReadBytes(GetIntegerSize(binr));
        RSAparams.D = binr.ReadBytes(GetIntegerSize(binr));
        RSAparams.P = binr.ReadBytes(GetIntegerSize(binr));
        RSAparams.Q = binr.ReadBytes(GetIntegerSize(binr));
        RSAparams.DP = binr.ReadBytes(GetIntegerSize(binr));
        RSAparams.DQ = binr.ReadBytes(GetIntegerSize(binr));
        RSAparams.InverseQ = binr.ReadBytes(GetIntegerSize(binr));
      }
      RSA.ImportParameters(RSAparams);
      return RSA;
    }
    private int GetIntegerSize(BinaryReader binr)
    {
      byte bt = 0;
      byte lowbyte = 0x00;
      byte highbyte = 0x00;
      int count = 0;
      bt = binr.ReadByte();
      if (bt != 0x02)
        return 0;
      bt = binr.ReadByte();
      if (bt == 0x81)
        count = binr.ReadByte();
      else
        if (bt == 0x82)
        {
          highbyte = binr.ReadByte();
          lowbyte = binr.ReadByte();
          byte[] modint = { lowbyte, highbyte, 0x00, 0x00 };
          count = BitConverter.ToInt32(modint, 0);
        }
        else
        {
          count = bt;
        }
      while (binr.ReadByte() == 0x00)
      {
        count -= 1;
      }
      binr.BaseStream.Seek(-1, SeekOrigin.Current);
      return count;
    }
}

附：jsencrypt.min.js點(diǎn)擊此處本站下載。

PS：關(guān)于加密解密感興趣的朋友還可以參考本站在線工具：

MD5在線加密工具:
http://tools.jb51.net/password/CreateMD5Password

迅雷、快車(chē)、旋風(fēng)URL加密/解密工具:
http://tools.jb51.net/password/urlrethunder

在線散列/哈希算法加密工具:
http://tools.jb51.net/password/hash_encrypt

在線MD5/hash/SHA-1/SHA-2/SHA-256/SHA-512/SHA-3/RIPEMD-160加密工具：
http://tools.jb51.net/password/hash_md5_sha

在線sha1/sha224/sha256/sha384/sha512加密工具：
http://tools.jb51.net/password/sha_encode

更多關(guān)于jQuery相關(guān)內(nèi)容感興趣的讀者可查看本站專(zhuān)題：《jQuery常用插件及用法總結(jié)》、《jQuery擴(kuò)展技巧總結(jié)》、《jQuery切換特效與技巧總結(jié)》、《jQuery遍歷算法與技巧總結(jié)》、《jQuery常見(jiàn)經(jīng)典特效匯總》、《jQuery動(dòng)畫(huà)與特效用法總結(jié)》及《jquery選擇器用法總結(jié)》

希望本文所述對(duì)大家jQuery程序設(shè)計(jì)有所幫助。

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