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openssl_x509_check_private_key

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

openssl_x509_check_private_key — Comprueba si una clave privada se corresponde a un certificado

Descripción

openssl_x509_check_private_key(mixed $cert, mixed $key): bool

Comprueba si key es la clave privada que se corresponde con cert.

Parámetros

cert: El certificado.
key: La clave privada.

Valores devueltos

Devuelve true si key el la clave privada que se conrresponde con cert, o false si no.

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User Contributed Notes 2 notes

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tomsie at toms dot ie ¶

4 years 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 =&gt; key, 1 =&gt; 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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jared at enhancesoft dot com ¶

7 years ago


This function will return FALSE if the private key requires a pass phrase.

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