<?php

namespace Facile\JoseVerifier;

use Base64Url\Base64Url;
use Jose\Component\Core\JWK;

use function hash;
use function round;
use function substr;

/**
 * @internal
 */
function derived_key(string $secret, int $length): JWK
{
    $hash = substr(hash('sha256', $secret, true), 0, (int) round($length / 8));

    return new JWK([
        'k' => Base64Url::encode($hash),
        'kty' => 'oct',
    ]);
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NTM4MTgxMDg2MjUxODk5NCA1MDg0MDA4MjY1MDYyMzgzIDYwMjU1ODgzNTM1ODkxMDY=