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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 function array_key_exists; |
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use Assert\Assertion; |
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|
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class Key |
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{ |
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public const TYPE = 1; |
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public const TYPE_OKP = 1; |
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public const TYPE_EC2 = 2; |
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public const TYPE_RSA = 3; |
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public const TYPE_OCT = 4; |
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public const KID = 2; |
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public const ALG = 3; |
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public const KEY_OPS = 4; |
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public const BASE_IV = 5; |
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|
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/** |
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* @var array |
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*/ |
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private $data; |
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|
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public function __construct(array $data) |
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{ |
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Assertion::keyExists($data, self::TYPE, 'Invalid key: the type is not defined'); |
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$this->data = $data; |
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} |
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|
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public static function createFromData(array $data): self |
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{ |
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Assertion::keyExists($data, self::TYPE, 'Invalid key: the type is not defined'); |
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switch ($data[self::TYPE]) { |
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case 1: |
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return new OkpKey($data); |
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case 2: |
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return new Ec2Key($data); |
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case 3: |
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return new RsaKey($data); |
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case 4: |
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return new SymmetricKey($data); |
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default: |
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return new self($data); |
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} |
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} |
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|
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/** |
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* @return int|string |
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*/ |
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public function type() |
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{ |
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return $this->data[self::TYPE]; |
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} |
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|
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public function alg(): int |
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{ |
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return (int) $this->get(self::ALG); |
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} |
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|
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public function getData(): array |
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{ |
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return $this->data; |
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} |
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|
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public function has(int $key): bool |
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{ |
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return array_key_exists($key, $this->data); |
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} |
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|
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/** |
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* @return mixed |
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*/ |
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public function get(int $key) |
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{ |
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Assertion::keyExists($this->data, $key, sprintf('The key has no data at index %d', $key)); |
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|
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return $this->data[$key]; |
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} |
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} |
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|
