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keep Travis happy by only conditional defining hash_pbkdf2 in polyfill

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Ralf Becker 2016-06-20 11:04:19 +02:00
parent 39c37afb6a
commit 65a26d707a
1 changed files with 19 additions and 15 deletions
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34
api/src/Mail/hash_pbkdf2.php
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@ -5,21 +5,25 @@
* @author Sebastiaan Stok <s.stok@rollerscapes.net>
* @link https://github.com/symfony/polyfill-php55/blob/master/Php55.php
*/
function hash_pbkdf2($algorithm, $password, $salt, $iterations, $length = 0, $rawOutput = false)
if (!function_exists('hash_pbkdf2'))
{
// Number of blocks needed to create the derived key
$blocks = ceil($length / strlen(hash($algorithm, null, true)));
$digest = '';
for ($i = 1; $i <= $blocks; ++$i) {
$ib = $block = hash_hmac($algorithm, $salt.pack('N', $i), $password, true);
// Iterations
for ($j = 1; $j < $iterations; ++$j) {
$ib ^= ($block = hash_hmac($algorithm, $block, $password, true));
function hash_pbkdf2($algorithm, $password, $salt, $iterations, $length = 0, $rawOutput = false)
{
// Number of blocks needed to create the derived key
$blocks = ceil($length / strlen(hash($algorithm, null, true)));
$digest = '';
for ($i = 1; $i <= $blocks; ++$i) {
$ib = $block = hash_hmac($algorithm, $salt.pack('N', $i), $password, true);
// Iterations
for ($j = 1; $j < $iterations; ++$j) {
$ib ^= ($block = hash_hmac($algorithm, $block, $password, true));
}
$digest .= $ib;
}
$digest .= $ib;
if (!$rawOutput) {
$digest = bin2hex($digest);
}
return substr($digest, 0, $length);
}
if (!$rawOutput) {
$digest = bin2hex($digest);
}
return substr($digest, 0, $length);
}
}