PHP'；节点JS中的openssl_符号等价物

我正在（慢慢地）学习NodeJS，并试图用它来代替我的PHP脚本。我需要对使用SSL组装的字符串进行签名，以传递给

curl

请求

在PHP中，我是这样做的：

$sig = '2018-08-24T17:33:41Z:abcdef:/path/to/api';

$pkeyid = openssl_pkey_get_private("file://YourMomGoesToCollege.pem"); 

// Sign 'sig' with private key
if(openssl_sign($sig, $signed_signature, $pkeyid, "sha256WithRSAEncryption")) {

  openssl_free_key($pkeyid);

  //Set curl header options ...
  curl_setopt($ch, CURLOPT_HTTPHEADER,
    [
    "X-Apple-CloudKit-Request-SignatureV1: " . base64_encode($signed_signature),
  ]
);

}

因此，我试图生成

$signed\u signature

的值，但我不确定如何继续。节点似乎可以做类似的事情，但其参数似乎不同。这是我最好的猜测：

const crypto = require('crypto')
const sign = crypto.createSign('SHA256')

sign.write(sig)
sign.end()

const privateKey = __dirname + 'YourMomGoesToCollege.pem'
var signedSignature = sign.sign(privateKey, 'hex')

var readyForCurl = Buffer.from(signedSignature).toString('base64')

---

我的思路正确吗？

以您的工作为出发点，进行一些小的修改，以下代码片段将打印相同的签名（base64编码）：

PHP:

节点JS：

const crypto = require('crypto');
const sign = crypto.createSign('SHA256');
const fs = require('fs')

sign.write('some data to sign');
sign.end();

const key = fs.readFileSync('private.pem');
signature_b64 = sign.sign(key, 'base64');
console.log(signature_b64);

diff

-将两个：

$ diff <(php sign.php) <(node sign.js)

$diff
$ diff <(php sign.php) <(node sign.js)