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<?php |
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/** |
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* Hash |
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* |
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* Hashing shorthands. |
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* |
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* @package core |
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* @author [email protected] |
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* @copyright Caffeina srl - 2015 - http://caffeina.it |
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*/ |
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class Hash { |
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use Module; |
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/** |
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* Create ah hash for payload |
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* @param mixed $payload The payload string/object/array |
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* @param integer $method The hashing method, default is "md5" |
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* @return string The hash string |
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*/ |
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public static function make($payload,$method='md5'){ |
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return hash($method,serialize($payload)); |
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} |
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/** |
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* Verify if given payload matches hash |
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* @param mixed $payload The payload string/object/array |
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* @param string $hash The hash string |
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* @param integer $method The hashing method |
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* @return bool Returns `true` if payload matches hash |
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*/ |
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public static function verify($payload,$hash,$method='md5'){ |
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return static::make($payload,$method) == $hash; |
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} |
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/** |
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* List registered hashing algorithms |
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* |
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* @method methods |
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* |
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* @return array Array containing the list of supported hashing algorithms. |
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*/ |
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public static function methods(){ |
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return hash_algos(); |
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} |
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/** |
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* Check if an alghoritm is registered in current PHP |
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* |
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* @method can |
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* |
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* @param string $algo The hashing algorithm name |
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* |
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* @return bool |
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*/ |
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public static function can($algo){ |
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return in_array($algo,hash_algos()); |
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} |
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/** |
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* Static magic for creating hashes with a specified algorithm. |
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* |
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* See [hash-algos](http://php.net/manual/it/function.hash-algos.php) for a list of algorithms |
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*/ |
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public static function __callStatic($method,$params){ |
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return self::make(current($params),$method); |
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} |
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public static function uuid($type=4, $namespace='', $name=''){ |
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switch($type){ |
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View Code Duplication |
case 3: if(preg_match('/^\{?[0-9a-f]{8}\-?[0-9a-f]{4}\-?[0-9a-f]{4}\-?'. |
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'[0-9a-f]{4}\-?[0-9a-f]{12}\}?$/Si', $namespace) !== 1) return false; |
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$nhex = str_replace(array('-','{','}'), '', $namespace); |
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$nstr = ''; for($i = 0; $i < strlen($nhex); $i+=2) |
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$nstr .= chr(hexdec($nhex[$i].$nhex[$i+1])); |
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$hash = md5($nstr . $name); |
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return sprintf('%08s-%04s-%04x-%04x-%12s', |
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substr($hash, 0, 8), substr($hash, 8, 4), |
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(hexdec(substr($hash, 12, 4)) & 0x0fff) | 0x3000, |
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(hexdec(substr($hash, 16, 4)) & 0x3fff) | 0x8000, |
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substr($hash, 20, 12)); |
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View Code Duplication |
case 5: if(preg_match('/^\{?[0-9a-f]{8}\-?[0-9a-f]{4}\-?[0-9a-f]{4}\-?'. |
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'[0-9a-f]{4}\-?[0-9a-f]{12}\}?$/Si', $namespace) !== 1) return false; |
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$nhex = str_replace(array('-','{','}'), '', $namespace); |
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$nstr = ''; for($i = 0; $i < strlen($nhex); $i+=2) |
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$nstr .= chr(hexdec($nhex[$i].$nhex[$i+1])); |
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$hash = sha1($nstr . $name); |
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return sprintf('%08s-%04s-%04x-%04x-%12s', |
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substr($hash, 0, 8), substr($hash, 8, 4), |
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(hexdec(substr($hash, 12, 4)) & 0x0fff) | 0x5000, |
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(hexdec(substr($hash, 16, 4)) & 0x3fff) | 0x8000, |
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substr($hash, 20, 12)); |
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default: case 4: return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x', |
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mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff), |
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mt_rand(0, 0x0fff) | 0x4000, mt_rand(0, 0x3fff) | 0x8000, |
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mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)); |
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} |
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} |
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public static function murmurhash3_int($key, $seed=0){ |
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$key = (string) $key; |
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$klen = strlen($key); |
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$h1 = $seed; |
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for ($i=0,$bytes=$klen-($remainder=$klen&3) ; $i<$bytes ; ) { |
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$k1 = ((ord($key[$i]) & 0xff)) |
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| ((ord($key[++$i]) & 0xff) << 8) |
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| ((ord($key[++$i]) & 0xff) << 16) |
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| ((ord($key[++$i]) & 0xff) << 24); |
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++$i; |
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$k1 = (((($k1 & 0xffff) * 0xcc9e2d51) |
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+ ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000)) * 0xcc9e2d51) & 0xffff) << 16))) |
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& 0xffffffff; |
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$k1 = $k1 << 15 | ($k1 >= 0 ? $k1 >> 17 : (($k1 & 0x7fffffff) >> 17) | 0x4000); |
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$k1 = (((($k1 & 0xffff) * 0x1b873593) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000)) |
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* 0x1b873593) & 0xffff) << 16))) & 0xffffffff; |
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$h1 ^= $k1; |
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$h1 = $h1 << 13 | ($h1 >= 0 ? $h1 >> 19 : (($h1 & 0x7fffffff) >> 19) | 0x1000); |
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$h1b = (((($h1 & 0xffff) * 5) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000)) * 5) |
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& 0xffff) << 16))) & 0xffffffff; |
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$h1 = ((($h1b & 0xffff) + 0x6b64) + ((((($h1b >= 0 ? $h1b >> 16 : (($h1b & 0x7fffffff) >> 16) | 0x8000)) |
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+ 0xe654) & 0xffff) << 16)); |
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} |
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$k1 = 0; |
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switch ($remainder) { |
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case 3: $k1 ^= (ord($key[$i + 2]) & 0xff) << 16; |
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case 2: $k1 ^= (ord($key[$i + 1]) & 0xff) << 8; |
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case 1: $k1 ^= (ord($key[$i]) & 0xff); |
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$k1 = ((($k1 & 0xffff) * 0xcc9e2d51) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000)) |
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* 0xcc9e2d51) & 0xffff) << 16)) & 0xffffffff; |
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$k1 = $k1 << 15 | ($k1 >= 0 ? $k1 >> 17 : (($k1 & 0x7fffffff) >> 17) | 0x4000); |
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$k1 = ((($k1 & 0xffff) * 0x1b873593) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000)) |
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* 0x1b873593) & 0xffff) << 16)) & 0xffffffff; |
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$h1 ^= $k1; |
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} |
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$h1 ^= $klen; |
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$h1 ^= ($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000); |
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$h1 = ((($h1 & 0xffff) * 0x85ebca6b) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000)) |
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* 0x85ebca6b) & 0xffff) << 16)) & 0xffffffff; |
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$h1 ^= ($h1 >= 0 ? $h1 >> 13 : (($h1 & 0x7fffffff) >> 13) | 0x40000); |
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$h1 = (((($h1 & 0xffff) * 0xc2b2ae35) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000)) |
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* 0xc2b2ae35) & 0xffff) << 16))) & 0xffffffff; |
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$h1 ^= ($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000); |
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return $h1; |
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} |
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public static function murmurhash3($key, $seed=0){ |
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return base_convert(static::murmurhash3_int($key, $seed),10,32); |
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} |
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} |
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caffeina-core /
core
