Node.js和Webcrypto之间的RSA加密 | js和Webcrypto之间的RSA加密

本文介绍了Node.js和Webcrypto之间的RSA加密的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我真的很坚持！我正在尝试做的事情：

I'm really stuck on this! What i'm trying to do:

使用ursa / webcrypto生成RSA密钥对

发送公钥以PEM方式通过电线

在另一端导入公钥，并用其加密一些文本

发回密文，然后使用私钥在另一端解密它。

Generate a RSA keypair using ursa/webcrypto
Send the public key as PEM over the wire
Import the public key on the other end, and encrypt some text with it
Send back the ciphertext and decrypt it on the other end using the private key

现在，如果尝试执行以下操作，我会在浏览器中收到未定义的DOMException异常用ursa加密部分，或者在浏览器中进行加密时在Node.js中收到此错误：

Now somehow I get either an undefined DOMException in the browser if I try to do the encryption part with ursa, or I get this error in Node.js when I do the encryption in the browser:

Missing error handler on `socket`.
Error: error:040A1079:rsa routines:RSA_padding_check_PKCS1_OAEP_mgf1:oaep decoding error
    at Error (native)
    at Object.decrypt (/home/jeroen/projects/crypto-nodebrowser/node_modules/ursa/lib/ursa.js:358:33)
    at Socket.<anonymous> (/home/jeroen/projects/crypto-nodebrowser/server.js:34:50)
    at emitOne (events.js:77:13)
    at Socket.emit (events.js:169:7)
    at Socket.onevent (/home/jeroen/projects/crypto-nodebrowser/node_modules/socket.io/lib/socket.js:330:8)
    at Socket.onpacket (/home/jeroen/projects/crypto-nodebrowser/node_modules/socket.io/lib/socket.js:290:12)
    at Client.ondecoded (/home/jeroen/projects/crypto-nodebrowser/node_modules/socket.io/lib/client.js:193:14)
    at Decoder.Emitter.emit (/home/jeroen/projects/crypto-nodebrowser/node_modules/component-emitter/index.js:134:20)
    at Decoder.add (/home/jeroen/projects/crypto-nodebrowser/node_modules/socket.io-parser/index.js:247:12)

我在显示了问题。欢迎对此提供任何帮助！

I made a minimal code example at https://github.com/jvanveen/crypto-nodebrowser that shows the issue. Any help on this is welcome!

推荐答案

好，我终于明白了。 Openssl的OAEP填充使用SHA1进行了硬编码，因此，如果您想使用RSA-OAEP-256，则ursa的openssl绑定不适合。我无法找到一种通过node-rsa进行此工作的方法，但是Node-forge在这里非常简单。只需使用以下内容即可：

Ok, I finally got it. Openssl has OAEP padding hardcoded using SHA1, so ursa's openssl bindings are not suitable if you want to use RSA-OAEP-256. I couldn't find a way to make this work with node-rsa, but Node-forge is quite straightforward here. Just use something like:

var encrypted = publicKey.encrypt(bytes, 'RSA-OAEP', {
    md: forge.md.sha256.create()
});

这篇关于Node.js和Webcrypto之间的RSA加密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！