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JS中的加密解密操作，以及对应的C#中的加密解密

2014-08-14 11:21 471 查看

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);
}

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