jQuery+C#实现参数RSA加密传输功能

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

  
  
  
  
  


  
    
          MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCa4KHNwDX44gGmmIAtRu4gjVYt
GWZzcm4t+1wjUD4dn7fMLPvuK7ai4UrfDeEJE1RPwudJw+lJ6crql8wSIg7/DbTl
      G3ihsCT6dT9H5B9OoeR7K9VWUesaW/iyVL6HXiYOANabW14pvJATDmdq91Tfgp6P
      SQyvdfiRdV4r07crpQIDAQAB
    
    

    注意+号的处理
  

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 = @"MIICWwIBAAKBgQCa4KHNwDX44gGmmIAtRu4gjVYtGWZzcm4t+1wjUD4dn7fMLPvuK7ai4UrfDeEJE1RPwudJw+lJ6crql8wSIg7/DbTlG3ihsCT6dT9H5B9OoeR7K9VW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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.jb51.net/password/CreateMD5Password

迅雷、快车、旋风URL加密/解密工具:
http://tools.jb51.net/password/urlrethunder

在线散列/哈希算法加密工具:
http://tools.jb51.net/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.jb51.net/password/hash_md5_sha

在线sha1/sha224/sha256/sha384/sha512加密工具：
http://tools.jb51.net/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。