节点JS，如何从P12文件中提取X.509证书?

问题描述

我有 p12 文件，该文件应获得X.509证书.为了使用此文件，我使用了 forge 库:

I have p12 file, where I should get X.509 Certificate. In order to work with this file I use forge library:

var forge = require('node-forge');
var fs = require('fs');

var keyFile = fs.readFileSync("/path/to/p12/file.p12", 'binary');
var p12Asn1 = forge.asn1.fromDer(keyFile);

var p12 = forge.pkcs12.pkcs12FromAsn1(p12Asn1, 'password');

var bags = p12.getBags({bagType: forge.pki.oids.certBag});

var cert = bags[forge.pki.oids.certBag][0];

console.log(cert);

控制台向我输出这种信息:

Console outputs to me this kind of information:

{ type: '1.2.840.113549.1.12.10.1.3',
  attributes:
  { localKeyId: [ 'aoa ??xx\u0015-?]%m§ §\f,\u0013' ],
    friendlyName: [ 'e56fe5a0899f787815adaf5d256da7a0a70c2c13' ] },
    cert: null,
    asn1:
    { tagClass: 0,
      type: 16,
      constructed: true,
      composed: true,
      value: [ [Object], [Object], [Object] ] } }

此结果意味着我有一个别名为 e56fe5a0899f787815adaf5d256da7a0a70c2c13 的别名，但是为什么 cert 为 null ?

This result means that I have an alias with name e56fe5a0899f787815adaf5d256da7a0a70c2c13, but why cert is null?

有Java的安全性api，它可以通过其别名从此p12文件中提取X.509证书.

There is Java's security api's, which is able to extract X.509 certificate from this p12 file by it's alias.

X509Certificate x509Certificate = (X509Certificate) ks.getCertificate(alias);

如何使用 forge 从 p12 文件中提取X.509证书?

How it is possible to extract X.509 certificate from p12 file by using forge?

节点版本 5.4.1

伪造版本 0.6.45

您可以在此处下载我的测试p12文件:链接

There you can download my testing p12 file: link

密码是 123456

推荐答案

根据[ https://github.com/digitalbazaar/forge/issues/237#issuecomment-93555599] :

因此，您需要 转换为ASN.1，然后转换为DER，然后进行PEM编码 :

So, you need convert to ASN.1, then DER, then PEM-encode:

var forge = require('node-forge');
var fs = require('fs');

var keyFile = fs.readFileSync("./gost.p12", 'binary');
var p12Asn1 = forge.asn1.fromDer(keyFile);

var p12 = forge.pkcs12.pkcs12FromAsn1(p12Asn1, '123456');

var bags = p12.getBags({bagType: forge.pki.oids.certBag});

var bag = bags[forge.pki.oids.certBag][0];

// convert to ASN.1, then DER, then PEM-encode
var msg = {
  type: 'CERTIFICATE',
  body: forge.asn1.toDer(bag.asn1).getBytes()
};
var pem = forge.pem.encode(msg);

console.log(pem);

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