(PHP 5 >= 5.6.0, PHP 7, PHP 8)
openssl_spki_new — Generate a new signed public key and challenge
$private_key, string $challenge, int $digest_algo = OPENSSL_ALGO_MD5): string|falseGenerates a signed public key and challenge using specified hashing algorithm
private_key
private_key should be set to a private key that was
previously generated by openssl_pkey_new() (or
otherwise obtained from the other openssl_pkey family of functions).
The corresponding public portion of the key will be used to sign the
CSR.
challengeThe challenge associated to associate with the SPKAC
digest_algoThe digest algorithm. See openssl_get_md_method().
Returns a signed public key and challenge string or false on failure.
Emits an E_WARNING level error if an unknown signature algorithm
is passed via the digest_algo parameter.
| Version | Description |
|---|---|
| 8.0.0 |
private_key accepts an OpenSSLAsymmetricKey instance now;
previously, a resource of type OpenSSL key was accepted.
|
Example #1 openssl_spki_new() example
Generate a new SPKAC with the default digest (MD5)
<?php
$pkey = openssl_pkey_new('secret password');
$spkac = openssl_spki_new($pkey, 'testing');
if ($spkac !== NULL) {
echo $spkac;
} else {
echo "SPKAC generation failed";
}
?>The above example will output something similar to:
MIICRzCCAS8wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDM3V3sS4o4 mB9dczziRnjGAmSp+JwPrHoYMAFGvDNmZGyiWfU586X4BKs++BAj7e/FsAfno0Hd hN9FwpCNFSox30L03nQvLYJE7f/WqigwBeMRT7Op/xvFks4sT70xP2HRYv4KqP9a WRcKU6cFH8VxhFhqM2txEIxZKdFLaL28yT7bEDmcglf4JLDdgNMb9rET1dkgtKE6 dOaJHPGjf1uvnOH4YwkQr7n4sLUR3Kdbh0ZJAFuQVDZulo+LLzxBBkqJJcB6FhF+ oXCdHTKZnqAhpWDz+NXYytAmevab6IYm5TWPWsJUv1YKJA5lg2mXbbloIZlN9Mgc i9fi03bdw+crAgMBAAEWB3Rlc3RpbmcwDQYJKoZIhvcNAQEEBQADggEBALyUvP/o pPSoWBlorFyZ2RnGwKf9qMpE0q2IJP7G3oDR4LyK/m933DUiZ+YnqThrH/CWb4Ek y5I3OCyl3S4wCuU1ibZZwDVwYShr5ELp0J9PEf7qMQZOhNsizoC7k+Czb2xB6hYW sKfsfTKm3cXBtH3fdgc/Z1Z7VSWnAzYo38snqm72NTf5yFRnrQdphNNXi+kn1zHA lxXRyFDXHOcYsOnwAWfyXFA4QDHQ0ezz0UoCY8gJXovcZb4GRYqOLUAsF2HcNboy 29WN8VqE29sL9QxVZFlwMcqyoLcNnyw38GvNvAGqSvzzbnEFP2MAQXJVe0H0hdp/ MML5G2iNVgNozAo=
The usage of openssl_pkey_new() in the example above is wrong.
openssl_pkey_new() requires an array as first parameter
Working example for openssl_pkey_new():
http://php.net/manual/de/function.openssl-pkey-new.php#111769