JS中的加密解密操作，以及对应的C#中的加密解密

浏览数：29 / 时间：2015年06月09日

JS：

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>RSA Login Test</title>
    <script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script>
    <script src="Scripts/jQuery.md5.js" type="text/javascript" ></script>
    <script src="Scripts/BigInt.js" type="text/javascript"></script>
    <script src="Scripts/RSA.js" type="text/javascript"></script>
    <script src="Scripts/Barrett.js" type="text/javascript"></script>
    <script type="text/javascript">
        function cmdEncrypt() {
            setMaxDigits(129);
            var key = new RSAKeyPair("<%=strPublicKeyExponent%>", "", "<%=strPublicKeyModulus%>");
            var pwdMD5Twice = $.md5($.md5($("#txtPassword").attr("value")));
            var pwdRtn = encryptedString(key, pwdMD5Twice);
            $("#encrypted_pwd").attr("value", pwdRtn);
            $("#formLogin").submit();
            return;
        }
    </script>

</head>
<body>
    <form action="Default.aspx" id="formLogin" method="post">
    <div>
        <div>
            User Name:
        </div>
        <div>
            <input id="txtUserName" name="txtUserName" value="<%=postbackUserName%>" type="text" maxlength="16" />
        </div>
        <div>
            Password:
        </div>
        <div>
            <input id="txtPassword" type="password" maxlength="16" />
        </div>
        <div>
            <input id="btnLogin" type="button" value="Login" onclick="return cmdEncrypt()" />
        </div>
    </div>
    <div>
        <input type="hidden" name="encrypted_pwd" id="encrypted_pwd" />
    </div>
    </form>
    <div>
        <%=LoginResult%>
    </div>
</body>
</html>

C#：

static void Main(string[] args)
{
    //用于字符串和byte[]之间的互转
    UTF8Encoding utf8encoder = new UTF8Encoding();

    //产生一对公钥私钥
    RSACryptoServiceProvider rsaKeyGenerator = new RSACryptoServiceProvider(1024);
    string publickey = rsaKeyGenerator.ToXmlString(false);
    string privatekey = rsaKeyGenerator.ToXmlString(true);
            
    //使用公钥加密密码
    RSACryptoServiceProvider rsaToEncrypt = new RSACryptoServiceProvider();
    rsaToEncrypt.FromXmlString(publickey);
    string strPassword = "@123#abc$";
    Console.WriteLine("The original password is: {0}", strPassword);
    byte[] byEncrypted = rsaToEncrypt.Encrypt(utf8encoder.GetBytes(strPassword), false);
    Console.Write("Encoded bytes: ");
    foreach (Byte b in byEncrypted)
    {
        Console.Write("{0}", b.ToString("X"));
    }
    Console.Write("\n");
    Console.WriteLine("The encrypted code length is: {0}", byEncrypted.Length);

    //解密
    RSACryptoServiceProvider rsaToDecrypt = new RSACryptoServiceProvider();
    rsaToDecrypt.FromXmlString(privatekey);
    byte[] byDecrypted = rsaToDecrypt.Decrypt(byEncrypted, false);
    string strDecryptedPwd = utf8encoder.GetString(byDecrypted);
    Console.WriteLine("Decrypted Password is: {0}", strDecryptedPwd);
}