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<?php |
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/** |
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* The SHA-3 family HKDF-SHA-384 hashing algorithm class. |
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*/ |
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namespace CryptoManana\Hashing; |
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use CryptoManana\Core\Abstractions\MessageDigestion\AbstractKeyMaterialDerivationFunction as KeyDerivationAlgorithm; |
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/** |
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* Class HkdfShaThree384 - The SHA-3 family HKDF-SHA-384 hashing algorithm object. |
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* |
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* @package CryptoManana\Hashing |
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*/ |
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class HkdfShaThree384 extends KeyDerivationAlgorithm |
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{ |
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/** |
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* The internal name of the algorithm. |
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*/ |
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const ALGORITHM_NAME = 'sha3-384'; |
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/** |
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* The internal maximum length in bytes of the output digest for the algorithm. |
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* |
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* @note For the current algorithm: `48 * 255 = 12240` |
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*/ |
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const ALGORITHM_MAXIMUM_OUTPUT = 12240; |
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/** |
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* The derivation output digest size in bytes length property storage. |
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* |
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* @var int The derivation output digest size in bytes length value. |
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* |
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* @note The default output size in bytes for this algorithm. |
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*/ |
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protected $outputLength = 48; |
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/** |
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* Key derivation algorithm constructor. |
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*/ |
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public function __construct() |
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{ |
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parent::__construct(); |
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$this->useNative = !in_array(static::ALGORITHM_NAME, hash_algos(), true); |
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} |
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/** |
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* Calculates a hash value for the given data. |
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* |
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* @param string $data The input string. |
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* |
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* @return string The digest. |
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* @throws \Exception Validation errors. |
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*/ |
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public function hashData($data) |
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{ |
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if (!is_string($data)) { |
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throw new \InvalidArgumentException('The data for hashing must be a string or a binary string.'); |
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} |
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$data = $this->addSaltString(($data === '') ? ' ' : $data); |
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// @codeCoverageIgnoreStart |
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/** |
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* {@internal Backward compatibility native realization for SHA-3 must be used. }} |
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*/ |
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$digest = ($this->useNative) ? |
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\CryptoManana\Compatibility\NativeHkdfSha3::digest384( |
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$data, |
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$this->outputLength, |
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$this->contextualString, |
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$this->derivationSalt, |
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true |
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) |
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: |
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hash_hkdf( |
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static::ALGORITHM_NAME, |
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$data, |
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$this->outputLength, |
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$this->contextualString, |
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$this->derivationSalt |
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); |
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// @codeCoverageIgnoreEnd |
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if ($this->digestFormat !== self::DIGEST_OUTPUT_RAW) { |
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$digest = bin2hex($digest); |
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} |
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$digest = $this->changeOutputFormat($digest); |
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return $digest; |
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} |
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} |
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TonyKaravasilev /
CryptoManana
