使用node-jose,如何解密刚刚加密的数据? [英] Using node-jose, how do I decrypt the data I just encrypted?
问题描述
我正在尝试使用 node-jose
.
I am trying to implement simple JOSE
encrypt
and decrypt
functions using node-jose
.
我的代码如下(使用Node 8.2.1编写)
My code is as follows (written using Node 8.2.1)
const { JWE } = require('node-jose');
const jose = (publicKey, privateKey) => {
async function encrypt(raw) {
if (!raw) throw new Error('Missing raw data.')
const buffer = new Buffer(JSON.stringify(raw));
return JWE.createEncrypt(publicKey).update(buffer).final();
}
async function decrypt(encrypted) {
if (!encrypted) throw new Error('Missing encrypted data.')
const buffer = new Buffer(JSON.stringify(encrypted));
return JWE.createDecrypt(privateKey).decrypt(buffer);
}
return { encrypt, decrypt }
}
module.exports = jose;
我使用 generate-rsa-keypair
生成RSA密钥对.
I generate an RSA keypair using generate-rsa-keypair
.
因此通过此代码测试事物的加密方面可以正常工作
So testing via this code the encryption side of things works fine
const { JWK } = require('node-jose');
const keygen = require('generate-rsa-keypair');
const jose = require('./src/utils/jose');
const rawKeys = keygen();
const makeKey = pem => JWK.asKey(pem, 'pem');
async function start() {
const publicKey = await makeKey(rawKeys.public)
const privateKey = await makeKey(rawKeys.private)
const raw = {
iss: 'test',
exp: new Date().getTime() + 3600,
sub: {
test: 'This is a test',
},
};
const { encrypt, decrypt } = jose(publicKey, privateKey);
return encrypt(raw).then(encrypted => decrypt(encrypted));
}
return start().then((result) => {
console.log('decrypted', result)
}, (err) => {
console.error(err);
});
encrypted
结果是
{
recipients: [ { encrypted_key: 'ciNiK6Unq30zCAXxIl2Dx9b8bZAi79qbpL1yUCwTFnSghFLrIZ11_D2ozt5on3r3ThUu96oDLZPcNShbqWPMV49NvQAsSNGdemhgzmTt3Lf3rJn1YiqvJvqf5NIXdmzjdoEZi-d9224mGpZGVKtIIFeT6-0hYgm5zNqq_aF_X2jy5IiF-mAGspNdXIk_KXPrTVbnU-XL9J5aAoG2Lp51Te1WzGA4Fjg4Ve5ZTzH6TLlQ5R5Ob_14liK-INrSi3armwXrtMgJcTmI_4oBtORtZp8AjaXzecFO_GzifvRVCSKx2vmpy9KaECpskMhZBHVx9RX9cvGKh7hq3Y7vsUucZw' } ],
protected: 'eyJhbGciOiJSU0EtT0FFUCIsImtpZCI6IldLWS1ONDRXM2RnanA4U2ZxSlp3TldqV3AzUG1XZ29UczhjRDh3eWNSUWciLCJlbmMiOiJBMTI4Q0JDLUhTMjU2In0',
iv: 'wvqir2ewtQPfDHQtzl6IUg',
ciphertext: 'ZwIrL_3739LI17rh3gWDUA6lXIL7ewkSh54FO_RwumC0qh9B0DcAr8RyXsfPbW19cV4u7SbZNSRP6B8qNOTy-2iENlqBISfE_kolDt8g5sg',
tag: 'z8nwrJfRgOi1hYMBI9lGeQ'
}
但是当我尝试解密时,我会得到
but when I try to decrypt that I get
Error: no key found
at processKey (node_modules/node-jose/lib/jwe/decrypt.js:157:22)
使用node-jose
的示例很少,所以我不确定以下内容
There are very few examples of using node-jose
so I am unsure of the following
- 我假设我应该使用私钥进行解密.但这只是一个假设.没有一个示例显示使用公钥/私钥对,只是一个密钥.
- 我假设加密的结果可以被简单化并变成一个缓冲区,然后传递给
decrypt
,但事实并非如此.
- I am assuming I ought to be decrypting with the private key. But that's just an assumption. None of the examples show use of public/private key pairs, just a single key.
- I'm assuming that the results of the encryption can just be strringified and turned into a buffer and passed into
decrypt
but perhaps that's not the case.
这真的如何工作?
推荐答案
-
使用公钥/私钥对时,
private
密钥用于解密,public
密钥用于加密.
When using public/private key pairs, the
private
key is used to decrypt and thepublic
key is used to encrypt.
JWEDecrypter.decrypt()
的输入是来自JWEEncrypter.final()
的承诺输出.
The input to JWEDecrypter.decrypt()
is the promised output from JWEEncrypter.final()
.
将您的decrypt
函数更改为:
async function decrypt(encrypted) {
if (!encrypted) throw new Error('Missing encrypted data.')
return JWE.createDecrypt(privateKey).decrypt(encrypted);
}
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