PHP ʖ²ἯTH
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openssl_verify
Description
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Returns 1 if the signature is correct, 0 if it is incorrect, and -1 on error.
=ד 1. openssl_verify() example
// $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().
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openssl_sign
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openssl_x509_check_private_key