PHP 7.1.20 Released


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

openssl_x509_check_private_keyVérifie si une clé privée correspond à un certificat


bool openssl_x509_check_private_key ( mixed $cert , mixed $key )

Vérifie si le paramètre key fourni est la clé privée qui correspond à cert.

Liste de paramètres


Le certificat.


La clé privée.

Valeurs de retour

Retourne TRUE si key est la clé privée qui correspond à cert, ou FALSE sinon.

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User Contributed Notes 2 notes

jared at enhancesoft dot com
3 years ago
This function will return FALSE if the private key requires a pass phrase.
tomsie at toms dot ie
7 months ago
This function DOES return TRUE if the key has a passphrase, you just need to set up the data in such a way that the function can understand it. It is not documented here.

This error message led me to the solution:

PHP Warning:  openssl_x509_check_private_key(): key array must be of the form array(0 => key, 1 => phrase)

So this works:

$certFile = file_get_contents('cert.crt');
$keyFile = file_get_contents('cert.key');
$keyPassphrase = "password1234";
$keyCheckData = array(0=>$keyFile,1=>$keyPassphrase);
$result = openssl_x509_check_private_key($certFile,$keyCheckData);
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