(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

openssl_pkey_get_privateПолучить закрытый ключ


openssl_pkey_get_private ( mixed $key , string $passphrase = "" ) : resource

openssl_pkey_get_private() разбирает key и подготавливает его к использованию в других функциях.

Список параметров


key может быть задан следующим образом:

  1. строка вида file://path/to/file.pem. Файл должен содержать кодированный в PEM сертификат/закрытый ключ (может содержать и то и другое).
  2. Секретный ключ в формате PEM.


Если ключ защищён паролем, то его надо указать в параметре passphrase.

Возвращаемые значения

Возвращает идентификатор ресурса ключа или false в случае ошибки.

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User Contributed Notes 3 notes

kristof1 at mailbox dot hu
6 years ago
It's actually "file://key.pem" when you want to give a relative path using unix systems. It will be three '/' in case of absolute path (e.g "file:///home/username/..."). But this path consists of two '/' originated from "file://" and one '/' from the fact that home is a subfolder of the unix filesystem's root directory ("/home/username/..."). This two part will be concatenated and you will get three '/' characters following each other.

So you only have to concatenate "file://" with an existing path string in every case.
9 years ago
Please note that "file://path/to/file.pem" in documentation means file protocol + file path. In UNIX like OS, that is something like file:///rsa_private_key.pem. There is THREE slashes in the path string, not TWO.
geoff at hostfission dot com
4 years ago
Since this function can be used to load a PEM encoded string also, those that are using it relying on user input should be sure to check that the passed data is indeed a PEM encoded string and not a malicious file path.

The following should be sufficient.

= trim($_POST['private']);
  if (
strpos($private, '-----') !== 0) return false;
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