nodejs 加密解密，如何读取.pfx中密钥

Question

nodejs怎么读取.pfx文件中的私钥;

PHP中涉及的代码是下面这个样子，怎么用nodejs来实现呢？

openssl_pkcs12_read(file_get_contents($tMerchantCertFile), $tCertificate, $tMerchantCertPassword);
$pkey = openssl_pkey_get_private($tCertificate['pkey']);

$signature = '';
$data = strval($aMessage);
if (!openssl_sign($data, $signature, $key, OPENSSL_ALGO_SHA1)) {
return null;
}
$signature = base64_encode($signature);