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<?php
declare(strict_types=1);
/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2018 Spomky-Labs
*
* This software may be modified and distributed under the terms
* of the MIT license. See the LICENSE file for details.
*/
namespace Jose\Component\Signature\Algorithm;
use Jose\Component\Core\JWK;
final class None implements SignatureAlgorithm
{
public function allowedKeyTypes(): array
{
return ['none'];
}
public function sign(JWK $key, string $input): string
{
$this->checkKey($key);
return '';
}
public function verify(JWK $key, string $input, string $signature): bool
{
return '' === $signature;
}
private function checkKey(JWK $key)
{
if (!\in_array($key->get('kty'), $this->allowedKeyTypes(), true)) {
throw new \InvalidArgumentException('Wrong key type.');
}
}
public function name(): string
{
return 'none';
}
}
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