openssl_x509_check_private_key

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

openssl_x509_check_private_key — Checks if a private key corresponds to a certificate

bool openssl_x509_check_private_key ( mixed $cert , mixed $key )

Checks whether the given key is the private key that corresponds to cert.

Returns TRUE if key is the private key that corresponds to cert, or FALSE otherwise.

1 year ago


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

5 years ago


Please note that this function only compares the public key component of the private key with the public key residing in the certificate.