尝试使用私钥解密消息时出现 node-rsa 错误 [英] node-rsa errors when trying to decrypt message with private key
问题描述
所以我一直在尝试将 node 与 node-rsa 和 javascript 一起使用jsencrypt 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)，对用户输入的消息(jsencrypt)进行加密，将其发送到服务器并让服务器对其进行解密(node-rsa).密钥的生成有效，加密有效，但解密无效.当我启动节点脚本时，我会为加密执行以下操作...
So I've been trying to use node with node-rsa and javascript with jsencrypt to create a website (for an assignment) where the javascript client gets the public key generated by the server (node-rsa), encrypts the message (jsencrypt) that the user has entered, sends it to the server and gets the server to decrypt it (node-rsa). The generation of the keys works, the encryption works however the decryption doesn't. When I start the node script I do the following for the encryption...
var NodeRSA = require('node-rsa');
var myDecrypter = new NodeRSA({b: 512});
当客户端请求密钥(我使用的是 express)时，会运行以下内容.
When the client requests the key (I am using express) the following is ran.
app.get('/getPublicKey', function(req, res){
var publicKeyJson = {"Key": ""};
console.log(myDecrypter.exportKey('public'));
publicKeyJson.Key = myDecrypter.exportKey('public');
res.json(JSON.stringify(publicKeyJson));
});
客户端然后像这样保存该密钥...
The client then saves that key like this...
var myEncrypter = new JSEncrypt();
var myJson = "";
$.getJSON( "getPublicKey", function( data ) {
myJson = JSON.parse(data).Key;
setKey();
});
function setKey() {
myEncrypter.setPublicKey(myJson);
}
当我必须在客户端上加密并发送消息时，我会这样做......
When I got to encrypt and send the message on the client I do this...
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);
}
当服务器收到一条消息时，就会发生这种情况，这就是我得到错误的地方.
When the server receives a message this is what happens, this is where I get the errors.
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......
The error I get is ...
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，有趣的是，为了得到上面的错误消息，我有一个私钥......
Here however is where it gets interesting, to get that error message above I had a private key of...
-----BEGIN RSA PRIVATE KEY-----
MIIBOgIBAAJBAIhdx31QICGN1LKRW4WngeL3RtzPh7cEHmhFJB8m4bQUSTcSi4eg
sUvMeZkWyaF9gOxtZKzk5TI6q+8hg8TY6S8CAwEAAQJASds423cVH/c4NsqhXh8e
KvYwjBFeeNIjQegIq1KctbHmKNM5MMb4jnDqdY/S5XHHS22EGvLNheLgV8tlRjwG
UQIhANpNmbl215eOsGPJ0jqz1XPMBrO35V6I3P04kvr66R1JAiEAn+oL0jtAFETR
4PRfenye5MAu9US3V5MoDN8xUoEvKrcCIQDQT2ZWNNIrHAyzXB2QyJPxqInoqp1j
5QPDWl3ewtj5iQIgY3E1nKw/stsA8LTGUvMAFBv2l4r9wDXAaBC7KSUwYY0CIAj4
0gA9etDbPm3H/XDwK4WXs9mXkKroyxewkWoOoAw/
-----END RSA PRIVATE KEY-----
发送给客户端的公钥是……
and the public key sent to the client was...
-----BEGIN PUBLIC KEY-----
MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAIhdx31QICGN1LKRW4WngeL3RtzPh7cE
HmhFJB8m4bQUSTcSi4egsUvMeZkWyaF9gOxtZKzk5TI6q+8hg8TY6S8CAwEAAQ==
-----END PUBLIC KEY-----
加密的消息(stackoverflow)是...
The encrypted messages (stackoverflow) was ...
XDViV0InCSnpyBxbNu5Herut0JYSsp87buvhzM4g2f9z3khIx2zA8Ou0Uq0TtmqtvBBVtZi5wZbcS6em/vB78g==
有趣的是，当我在 jsencrypt 网站上使用 demo 并输入我的私钥以及加密消息我得到了正确的解密消息.
The interesting thing is that when I used the demo on jsencrypt website and enter my private key as well as the encrypted message I get the correct decrypted message.
所以我的问题是......
So my question is...
我的 node-rsa 解密有什么问题???
What am I doing wrong with my node-rsa decryption???
如果您需要更多信息/代码，请将其放在下面的评论中.
If you need anymore information/code please put it in the comments below.
推荐答案
回答你的问题 @Curious_Programmer 默认 node-rsa 使用 pkcs1_oaep 进行加密和解密，而 jsencrypt 使用 pkcs1.值得庆幸的是 node 可以让你更改加密方案，你需要做的是添加 ...
To answer your question @Curious_Programmer be default node-rsa uses pkcs1_oaep for encryption and decryption while jsencrypt uses pkcs1. Thankfully node lets you change the encryptionScheme, what you need to do is add ...
myDecrypter.setOptions({encryptionScheme: 'pkcs1'});
下
var myDecrypter = new NodeRSA({b: 512});
一切都会像魅力一样工作，我希望我能帮助你；)
and all will work like a charm, I hoped I helped you ;)
这篇关于尝试使用私钥解密消息时出现 node-rsa 错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
