js前台加密传输到后台C#解密

最新推荐文章于 2025-03-16 14:33:13 发布

immortal_mcl

最新推荐文章于 2025-03-16 14:33:13 发布

阅读量859

点赞数

分类专栏： asp.net

原文链接：https://blog.youkuaiyun.com/angle_greensky110/article/details/48293653?utm_medium=distribute.pc_relevant_download.none-task-blog-BlogCommendFromBaidu-1.nonecase&depth_1-utm_source=distribute.pc_relevant_download.none-task-blog-BlogCommendFromBaidu-1.nonecas

版权

asp.net 专栏收录该内容

28 篇文章

订阅专栏

引用：https://blog.youkuaiyun.com/angle_greensky110/article/details/48293653?utm_medium=distribute.pc_relevant_download.none-task-blog-BlogCommendFromBaidu-1.nonecase&depth_1-utm_source=distribute.pc_relevant_download.none-task-blog-BlogCommendFromBaidu-1.nonecas

源码下载地址：js前台加密传输到后台c#解密

前提条件：

1、添加3个js，在代码crypto文件夹中

2、添加4个类文件，在代码App_Code\Migrated文件夹中

3、两个加密解密文件，在代码MyXml文件夹中

前台代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="LoginNew.aspx.cs" Inherits="LoginNew" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
<script language="javascript" src="crypto/BigInt.js"></script>
<script language="javascript" src="crypto/Barrett.js"></script>
<script language="javascript" src="crypto/RSA.js"></script>
<script language="javascript">
function cmdEncrypt()
{
setMaxDigits(131);
//这句话在我的代码里面放在这里head之间会报错，把cmdEncrypt()方法移到body上执行不会报错
var key = new RSAKeyPair("<%=GetRSA_E()%>", "", "<%=GetRSA_M()%>");
document.getElementById("posx").value = encryptedString(key,base64encode(document.getElementById("txtUserName").value) + "\\" + base64encode(document.getElementById("txtPassword").value));
document.getElementById("txtPassword").value="";
return;
}
function base64encode(str) {
var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var base64DecodeChars = new Array(
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
-1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1);
var out, i, len;
var c1, c2, c3;
len = str.length;
i = 0;
out = "";
while(i < len) {
c1 = str.charCodeAt(i++) & 0xff;
if(i == len)
{
out += base64EncodeChars.charAt(c1 >> 2);
out += base64EncodeChars.charAt((c1 & 0x3) << 4);
out += "==";
break;
}
c2 = str.charCodeAt(i++);
if(i == len)
{
out += base64EncodeChars.charAt(c1 >> 2);
out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
out += base64EncodeChars.charAt((c2 & 0xF) << 2);
out += "=";
break;
}
c3 = str.charCodeAt(i++);
out += base64EncodeChars.charAt(c1 >> 2);
out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
out += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6));
out += base64EncodeChars.charAt(c3 & 0x3F);
}
return out;
}
</script>
</head>
<body>
<form id="Form1" method="post" runat="server">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td align="right" height="28" nowrap>
</td>
</tr>
</table>
<table width="100%" border="0" cellpadding="3" cellspacing="0" style="background-color: white">
<tr>
<td>
<span>Log On to APPa</span>
<br>
<hr size="1">
</td>
</tr>
</table>
<table width="100%" cellpadding="3" cellspacing="0" border="0">
<tr>
<td>
<br>
Please enter your user name and password:<br>
<hr size="1">
</td>
</tr>
<tr>
<td>
<table border="0" cellpadding="0" cellspacing="1">
<tr>
<td>
User Name:</td>
<td width="20">
</td>
<td>
<asp:TextBox EnableViewState="False" MaxLength="30" ID="txtUserName" runat="server"
Width="200px"></asp:TextBox></td>
<td>
</td>
</tr>
<tr>
<td>
Password:</td>
<td width="20">
</td>
<td>
<asp:TextBox EnableViewState="False" MaxLength="30" ID="txtPassword" runat="server"
TextMode="Password" Width="200px"></asp:TextBox></td>
<td>
</td>
</tr>
<tr>
<td colspan="2">
<td align="left">
<table cellpadding="0" border="0">
<tr>
<td class="">
<div class="">
<input type="button" id="btnLogin" runat="Server" value="Login" οnclick="javascript:cmdEncrypt();"
name="btnLogin" onserverclick="btnLogin_ServerClick">
</div>
</td>
</tr>
</table>
</td>
<td>
</td>
<td>
</tr>
</table>
<asp:Label ID="lblMsg" EnableViewState="False" runat="server"></asp:Label><br>
<asp:Label ID="lblError" EnableViewState="False" runat="server" ForeColor="red"></asp:Label><br>
<asp:HiddenField ID="posx" runat="server" />
</td>
</tr>
</table>
</form>
</body>
</html>

后台代码：

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Security.Cryptography;
using System.IO;
using CodeName.APPa;
public partial class LoginNew : System.Web.UI.Page
{
private RSACrypto rsa = new RSACrypto();
private RSAParameters param;
protected void Page_Load(object sender, System.EventArgs e)
{
if (!IsPostBack)
{
GetKey.GetKeyFunction();
}
string path = Session["key"].ToString() + ConfigurationManager.AppSettings["rsaPrivateKeyFilePath"];
rsa.InitCrypto(Server.MapPath("~/MyXml/") + path);
param = rsa.ExportParameters(true);
}
protected string GetRSA_E()
{
return StringHelper.BytesToHexString(param.Exponent);
}
protected string GetRSA_M()
{
return StringHelper.BytesToHexString(param.Modulus);
}
protected void btnLogin_ServerClick(object sender, System.EventArgs e)
{
string tmp = StringHelper.ASCIIBytesToString(rsa.Decrypt(StringHelper.HexStringToBytes(Request.Params["posx"])));
string[] parts = tmp.Split('\\');
string username = StringHelper.ASCIIBytesToString(StringHelper.FromBase64(parts[0]));
string password = StringHelper.ASCIIBytesToString(StringHelper.FromBase64(parts[1]));
}
}

webconfig配置文件：在appSettings节点中加入这3句话

<appSettings>
		<add key="authDomainServer" value="SERVERa"/>
		<add key="rsaPublicKeyFilePath" value="private.xml"/>
		<add key="rsaPrivateKeyFilePath" value="private.xml"/>
</appSettings>