OPENSSL_SPKI_EXPORT(3) 1 OPENSSL_SPKI_EXPORT(3)
openssl_spki_export - Exports a valid PEM formatted public key signed public key and challenge
SYNOPSIS
string openssl_spki_export (string &$spkac)
DESCRIPTION
Exports PEM formatted public key from encoded signed public key and challenge
PARAMETERS
o $spkac
- Expects a valid signed public key and challenge
RETURN VALUES
Returns the associated PEM formatted public key or NULL on failure.
ERRORS
/EXCEPTIONS
Emits an E_WARNING level error if an invalid argument is passed via the $spkac parameter.
EXAMPLES
Example #1
openssl_spki_export(3) example
Extracts the associated PEM formatted public key or NULL on failure.
<?php
$pkey = openssl_pkey_new('secret password');
$spkac = openssl_spki_new($pkey, 'challenge string');
$pubKey = openssl_spki_export(preg_replace('/SPKAC=/', '', $spkac));
if ($pubKey) {
echo $pubKey;
}
?>
Example #2
openssl_spki_export(3) example from <keygen>
Extracts the associated PEM formatted public key issued from the <keygen> element
<?php
$spkac = openssl_spki_export(preg_replace('/SPKAC=/', '', $_POST['spkac']));
if ($spkac != NULL) {
echo $spkac;
} else {
echo "Extraction of pub key failed";
}
?>
<keygen name="spkac" challenge="challenge string" keytype="RSA">
SEE ALSO
openssl_spki_new(3), openssl_spki_verify(3), openssl_spki_export_challenge(3), openssl_md_method(3), openssl_csr_new(3),
openssl_csr_sign(3).
PHP Documentation Group OPENSSL_SPKI_EXPORT(3)
