(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
openssl_x509_check_private_key — Checks if a private key corresponds to a certificate
$certificate, OpenSSLAsymmetricKey|OpenSSLCertificate|array|string$private_key): bool Checks whether the given private_key is the private key that corresponds to certificate.
The function does not check if private_key is indeed a private key or not. It merely compares the public materials (e.g. exponent and modulus of an RSA key) and/or key parameters (e.g. EC params of an EC key) of a key pair.
This means, for example, that a public key could be given for private_key and the function may return true.
certificateThe certificate.
private_keyThe private key.
Returns true if private_key is the private key that corresponds to certificate, or false otherwise.
| Version | Description |
|---|---|
| 8.0.0 | certificate accepts an OpenSSLCertificate instance now; previously, a resource of type OpenSSL X.509 was accepted. |
| 8.0.0 | private_key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a resource of type OpenSSL key or OpenSSL X.509 was accepted. |