HS256::getHashAlgorithm()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 4
rs 10
c 0
b 0
f 0
cc 1
nc 1
nop 0
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<?php
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declare(strict_types=1);
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/*
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 * The MIT License (MIT)
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 *
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 * Copyright (c) 2014-2019 Spomky-Labs
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 *
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 * This software may be modified and distributed under the terms
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 * of the MIT license.  See the LICENSE file for details.
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 */
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namespace Jose\Component\Signature\Algorithm;
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use InvalidArgumentException;
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use Jose\Component\Core\JWK;
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final class HS256 extends HMAC
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{
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    public function name(): string
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    {
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        return 'HS256';
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    }
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    protected function getHashAlgorithm(): string
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    {
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        return 'sha256';
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    }
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    /**
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     * @throws InvalidArgumentException if the key is invalid
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     */
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    protected function getKey(JWK $key): string
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    {
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        $k = parent::getKey($key);
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        if (mb_strlen($k, '8bit') < 32) {
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            throw new InvalidArgumentException('Invalid key length.');
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        }
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        return $k;
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    }
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}
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