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