openssl_spki_export_challenge

(PHP 5 >= 5.6.0)

openssl_spki_export_challenge — Exports the challenge assoicated with a signed public key and challenge

설명

string openssl_spki_export_challenge ( string &$spkac )

Exports challenge from encoded signed public key and challenge

인수

spkac: Expects a valid signed public key and challenge

반환값

Returns the associated challenge string or NULL on failure.

오류/예외

Emits an E_WARNING level error if an invalid argument is passed via the spkac parameter.

예제

Example #1 openssl_spki_export_challenge() example

Extracts the associated challenge string or NULL on failure.


<?php
$pkey = openssl_pkey_new('secret password');
$spkac = openssl_spki_new($pkey, 'challenge string');
$challenge = openssl_spki_export_challenge(preg_replace('/SPKAC=/', '', $spkac));
?>

Example #2 openssl_spki_export_challenge() example from <keygen>

Extracts the associated challenge string issued from the <keygen> element


<?php
$challenge = openssl_spki_export_challenge(preg_replace('/SPKAC=/', '', $_POST['spkac']));
?>
<keygen name="spkac" challenge="challenge string" keytype="RSA">

참고

openssl_spki_new() - Generate a new signed public key and challenge
openssl_spki_verify() - Verifies a signed public key and challenge
openssl_spki_export() - Exports a valid PEM formatted public key signed public key and challenge
openssl_md_method()
openssl_csr_new() - Generates a CSR
openssl_csr_sign() - Sign a CSR with another certificate (or itself) and generate a certificate