Description

int openssl_verify (string data, string signature, mixed pub_key_id)

- Returns 1 if the signature is correct, 0 if it is incorrect, and

-1 on error.

- openssl_verify() verifies that the

signature is correct for the specified

data using the public key associated with

pub_key_id. This must be the public key

corresponding to the private key used for signing.

-

Пример 1. openssl_verify() example
<?php // $data and $signature are assumed to contain the data and the signature // fetch public key from certificate and ready it $fp = fopen("/src/openssl-0.9.6/demos/sign/cert.pem", "r"); $cert = fread($fp, 8192); fclose($fp); $pubkeyid = openssl_get_publickey($cert); // state whether signature is okay or not $ok = openssl_verify($data, $signature, $pubkeyid); if ($ok == 1) { echo "good"; } elseif ($ok == 0) { echo "bad"; } else { echo "ugly, error checking signature"; } // free the key from memory openssl_free_key($pubkeyid); ?>

- See also openssl_sign().

openssl_sign

openssl_x509_check_private_key 22222