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<?php |
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|
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declare(strict_types=1); |
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|
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2021 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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|
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namespace Cose\Key; |
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|
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use Assert\Assertion; |
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|
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class SymmetricKey extends Key |
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{ |
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public const DATA_K = -1; |
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|
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public function __construct(array $data) |
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{ |
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parent::__construct($data); |
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Assertion::eq($data[self::TYPE], self::TYPE_OCT, 'Invalid symmetric key. The key type does not correspond to a symmetric key'); |
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Assertion::keyExists($data, self::DATA_K, 'Invalid symmetric key. The parameter "k" is missing'); |
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} |
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|
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public function k(): string |
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{ |
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return $this->get(self::DATA_K); |
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} |
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} |
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|
