jQuery+C#实现参数RSA加密传输功能【附jsencrypt.js下载】

2019-11-19 16:15:25

字体：大中小

来源：转载

供稿：网友

本文实例讲述了jQuery+C#实现参数RSA加密传输功能。分享给大家供大家参考，具体如下：

注意：

参数传递的+号处理，在传输时会把+变成空格，不处理后端就报错了。

1、前端代码

<!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'), //+号的处理：因为数据在网络上传输时，非字母数字字符都将被替换成百分号（%）后跟两位十六进制数，而base64编码在传输到后端的时候，+会变成空格，因此先替换掉。后端再替换回来          type: 'post',          success: function (msg) {            alert(msg);          }        });      });    });  </script></head><body>  <div>    <input type="button" id="btn" value="点我" />    <textarea id="tra" rows="15" cols="65">      MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCa4KHNwDX44gGmmIAtRu4gjVYtGWZzcm4t+1wjUD4dn7fMLPvuK7ai4UrfDeEJE1RPwudJw+lJ6crql8wSIg7/DbTl      G3ihsCT6dT9H5B9OoeR7K9VWUesaW/iyVL6HXiYOANabW14pvJATDmdq91Tfgp6P      SQyvdfiRdV4r07crpQIDAQAB    </textarea>    <hr/>    注意+号的处理  </div></body></html>

2、后端代码

public class IndexController : Controller{    public ActionResult Login()    {      return View();    }    [HttpPost]    public ActionResult Login(string pwd)    {      //密钥格式要生成pkcs#1格式的  而不是pkcs#8格式的      string privateKey = @"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";      try      {        RSACryptoServiceProvider rsaCryptoServiceProvider = CreateRsaProviderFromPrivateKey(privateKey);        //把+号，再替换回来        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点击此处本站下载。

PS：关于加密解密感兴趣的朋友还可以参考本站在线工具：

MD5在线加密工具:
http://tools.VeVB.COm/password/CreateMD5Password

迅雷、快车、旋风URL加密/解密工具:
http://tools.VeVB.COm/password/urlrethunder

在线散列/哈希算法加密工具:
http://tools.VeVB.COm/password/hash_encrypt

在线MD5/hash/SHA-1/SHA-2/SHA-256/SHA-512/SHA-3/RIPEMD-160加密工具：
http://tools.VeVB.COm/password/hash_md5_sha

在线sha1/sha224/sha256/sha384/sha512加密工具：
http://tools.VeVB.COm/password/sha_encode

更多关于jQuery相关内容感兴趣的读者可查看本站专题：《jQuery常用插件及用法总结》、《jQuery扩展技巧总结》、《jQuery切换特效与技巧总结》、《jQuery遍历算法与技巧总结》、《jQuery常见经典特效汇总》、《jQuery动画与特效用法总结》及《jquery选择器用法总结》

希望本文所述对大家jQuery程序设计有所帮助。

上一篇：jQuery实现一个简单的验证码功能

下一篇：JavaScript实现三级联动菜单实例代码