尝试使用私钥解密消息时出现node-rsa错误

Question

所以我一直在尝试使用带有node-rsa的节点和带有jsencrypt的 javascript 来创建一个网站(用于分配),其中javascript客户端获取服务器生成的公钥(node-rsa),加密消息(jsencrypt)用户已输入,将其发送到服务器并让服务器对其进行解密(node-rsa).密钥的生成起作用,加密工作但解密不起作用.当我启动节点脚本时,我执行以下加密...

var NodeRSA = require('node-rsa');
var myDecrypter = new NodeRSA({b: 512});

当客户端请求密钥(我使用快速)时,运行以下内容.

app.get('/getPublicKey', function(req, res){
    var publicKeyJson = {"Key": ""};
    console.log(myDecrypter.exportKey('public'));
    publicKeyJson.Key = myDecrypter.exportKey('public');
    res.json(JSON.stringify(publicKeyJson));
});

然后客户端像这样保存该密钥......

var myEncrypter = new JSEncrypt();
var myJson  = "";
$.getJSON( "getPublicKey", function( data ) {
    myJson = JSON.parse(data).Key;
        setKey();
});
function setKey() {
    myEncrypter.setPublicKey(myJson);
}

当我在客户端加密并发送消息时,我这样做......

function messageEncrypt() {
    message = document.getElementById("message").value;
    var encrypted = myEncrypter.encrypt(message);
    myMessage = {"username": "", "userId": 0.0, "message": ""};
    myMessage.username = me.username;
    myMessage.userId = me.userId;
    myMessage.message = encrypted;
    console.log(encrypted);
    $.post("sendMessage", myMessage);
}

当服务器收到消息时,会发生这种情况,这就是我收到错误的地方.

app.post('/sendMessage', function(req, res){
    var message = req.body;
    var user = message.username;
    var id = message.userId;
    console.log("What a mess, " + user + " said " + message.message + " what on earth does that mean");
    //This line below errors
    var clearMessage = myDecrypter.decrypt(message.message, 'utf8');
    console.log(user + " said " + clearMessage);
});

我得到的错误是......

Error: Error during decryption (probably incorrect key). Original error: Error: error:040A1079:rsa routines:RSA_padding_check_PKCS1_OAEP_mgf1:oaep decoding error
    at Error (native)
    at NodeRSA.module.exports.NodeRSA.$$decryptKey (/home/node_modules/node-rsa/src/NodeRSA.js:295:19)
    at NodeRSA.module.exports.NodeRSA.decrypt (/home/node_modules/node-rsa/src/NodeRSA.js:243:21)
    at /home/securechat/securechat.js:36:36
    at Layer.handle [as handle_request] (/home/node_modules/express/lib/router/layer.js:95:5)
    at next (/home/node_modules/express/lib/router/route.js:131:13)
    at Route.dispatch (/home/node_modules/express/lib/router/route.js:112:3)
    at Layer.handle [as handle_request] (/home/node_modules/express/lib/router/layer.js:95:5)
    at /home/node_modules/express/lib/router/index.js:277:22
    at Function.process_params (/home/node_modules/express/lib/router/index.js:330:12)

然而,在这里它变得有趣,为了得到上面的错误信息,我有一个私钥...

-----BEGIN RSA PRIVATE KEY-----
MIIBOgIBAAJBAIhdx31QICGN1LKRW4WngeL3RtzPh7cEHmhFJB8m4bQUSTcSi4eg
sUvMeZkWyaF9gOxtZKzk5TI6q+8hg8TY6S8CAwEAAQJASds423cVH/c4NsqhXh8e
KvYwjBFeeNIjQegIq1KctbHmKNM5MMb4jnDqdY/S5XHHS22EGvLNheLgV8tlRjwG
UQIhANpNmbl215eOsGPJ0jqz1XPMBrO35V6I3P04kvr66R1JAiEAn+oL0jtAFETR
4PRfenye5MAu9US3V5MoDN8xUoEvKrcCIQDQT2ZWNNIrHAyzXB2QyJPxqInoqp1j
5QPDWl3ewtj5iQIgY3E1nKw/stsA8LTGUvMAFBv2l4r9wDXAaBC7KSUwYY0CIAj4
0gA9etDbPm3H/XDwK4WXs9mXkKroyxewkWoOoAw/
-----END RSA PRIVATE KEY-----

并且发送给客户的公钥是......

-----BEGIN PUBLIC KEY-----
MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAIhdx31QICGN1LKRW4WngeL3RtzPh7cE
HmhFJB8m4bQUSTcSi4egsUvMeZkWyaF9gOxtZKzk5TI6q+8hg8TY6S8CAwEAAQ==
-----END PUBLIC KEY-----

加密的消息(stackoverflow)是......

XDViV0InCSnpyBxbNu5Herut0JYSsp87buvhzM4g2f9z3khIx2zA8Ou0Uq0TtmqtvBBVtZi5wZbcS6em/vB78g==

有趣的是,当我在jsencrypt网站上使用该演示并输入我的私钥以及加密消息时,我得到了正确的解密消息.

所以我的问题是......

我的node-rsa解密怎么办？

如果您需要更多信息/代码,请将其放在下面的评论中.

Answer 1

要回答您的问题@Curious_Programmer是默认节点-rsa使用pkcs1_oaep进行加密和解密,而jsencrypt使用pkcs1.谢天谢地,node允许你更改encryptionScheme,你需要做的就是添加...

myDecrypter.setOptions({encryptionScheme: 'pkcs1'});

下

var myDecrypter = new NodeRSA({b: 512});

所有人都会像魅力一样工作,我希望我能帮助你;)