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">
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCa4KHNwDX44gGmmIAtRu4gjVYt
GWZzcm4t+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 = @"MIICWwIBAAKBgQCa4KHNwDX44gGmmIAtRu4gjVYtGWZzcm4t+1wjUD4dn7fMLPvuK7ai4UrfDeEJE1RPwudJw+lJ6crql8wSIg7/DbTlG3ihsCT6dT9H5B9OoeR7K9VW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