openssl_spki_export_challenge

(PHP 5 >= 5.6.0)

openssl_spki_export_challengeExports the challenge assoicated with a signed public key and challenge

Опис

string openssl_spki_export_challenge ( string &$spkac )

Exports challenge from encoded signed public key and challenge

Параметри

spkac

Expects a valid signed public key and challenge

Значення, що повертаються

Returns the associated challenge string or NULL on failure.

Помилки/Винятки

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

Приклади

Приклад #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));
?>

Приклад #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">

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