openssl_verify (PHP 4 >= 4.0.4, PHP 5) openssl_verify -- Verify signatureDescriptionint 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.
Ejemplo 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);
?> |
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See also openssl_sign().
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