openssl_spki_export

(PHP 5 >= 5.6.0)

openssl_spki_export — Exports a valid PEM formatted public key signed public key and challenge

설명

string openssl_spki_export ( string &$spkac )

Exports PEM formatted public key from encoded signed public key and challenge

인수

spkac: Expects a valid signed public key and challenge

반환값

Returns the associated PEM formatted public key 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() 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() 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">

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_challenge() - Exports the challenge assoicated with a 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