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<?php |
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namespace WP_DEFENDER_VENDOR\Safe; |
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use WP_DEFENDER_VENDOR\Safe\Exceptions\HashException; |
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|
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/** |
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* |
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* |
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* @param string $algo Name of selected hashing algorithm (i.e. "sha256", "sha512", "haval160,4", etc..) |
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* See hash_algos for a list of supported algorithms. |
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* |
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* |
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* Non-cryptographic hash functions are not allowed. |
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* |
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* |
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* |
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* Non-cryptographic hash functions are not allowed. |
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* @param string $ikm Input keying material (raw binary). Cannot be empty. |
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* @param int $length Desired output length in bytes. |
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* Cannot be greater than 255 times the chosen hash function size. |
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* |
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* If length is 0, the output length |
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* will default to the chosen hash function size. |
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* @param string $info Application/context-specific info string. |
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* @param string $salt Salt to use during derivation. |
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* |
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* While optional, adding random salt significantly improves the strength of HKDF. |
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* @return string Returns a string containing a raw binary representation of the derived key |
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* (also known as output keying material - OKM);. |
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* @throws HashException |
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* |
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*/ |
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function hash_hkdf(string $algo, string $ikm, int $length = 0, string $info = '', string $salt = ''): string |
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{ |
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error_clear_last(); |
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$result = \hash_hkdf($algo, $ikm, $length, $info, $salt); |
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if ($result === false) { |
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throw HashException::createFromPhpError(); |
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} |
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return $result; |
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} |
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|
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/** |
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* |
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* |
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* @param \HashContext $hcontext Hashing context returned by hash_init. |
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* @param string $filename URL describing location of file to be hashed; Supports fopen wrappers. |
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* @param \HashContext|null $scontext Stream context as returned by stream_context_create. |
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* @throws HashException |
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* |
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*/ |
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function hash_update_file(\HashContext $hcontext, string $filename, ?\HashContext $scontext = null): void |
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{ |
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error_clear_last(); |
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$result = \hash_update_file($hcontext, $filename, $scontext); |
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if ($result === false) { |
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throw HashException::createFromPhpError(); |
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} |
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} |
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