PHP cryptr Cryptographic functions

classCrypthelper {/** * Encryption * @param unknown $password * @param unknown $salt * @return String*/     public Static function Crypt($password,$salt){        //$saltPrefix. = ' $2y$ ';//Blowfish algorithm//$saltPrefix. = ' 13 ';//two-bit cost parameter//$saltPrefix. = ' $ '; A $//$saltSuffix. = ' lgsf2ctmkkhe1yr2py.vtu ';        return Crypt($password,$salt); }        /** * Character comparison * @param unknown $expected * @param unknown $actual * @return Boolean*/     public Static functionCompareString ($expected,$actual)    {        $expected. = "+"; $actual. = "+"; $expectedLength= Mb_strlen ($expected, ' 8bit '); $actualLength= Mb_strlen ($actual, ' 8bit '); $diff=$expectedLength-$actualLength;  for($i= 0;$i<$actualLength;$i++) {            $diff|= (Ord($actual[$i]) ^Ord($expected[$i%$expectedLength])); }        return $diff= = 0; }        /** * Check password * @param unknown $password * @param unknown $hash * @return Boolean*/     public Static functionValidatePassword ($password,$hash)    {        if(!is_string($password) ||$password= = = "") {            return false; }                if(!Preg_match('/^\$2[axy]\$ (\d\d) \$[\.\/0-9a-za-z]{22}/',$hash,$matches)            ||$matches[1] < 4 | |$matches[1] > 30        ) {            return false; }                $test= self::Crypt($password,$hash); $n=strlen($test); if($n!== 60) {            return false; }        returnSelf::comparestring ($test,$hash); }}

Test

//---------test--------//encryption$salt= ' $2y$13$lgsf2ctmkkhe1yr2py.vtu ';//7 + = =$password= ' Aa123456 ';Echocrypthelper::Crypt($password,$salt);Echo Php_eol;//Checksum$hash= ' $2y$13$lgsf2ctmkkhe1yr2py.vtuiur/a0c6tarkcxmo.lulsirisu7u53m ';Echocrypthelper::Crypt($password,$hash);Echo Php_eol;Echo strlen($hash);Echo Php_eol;EchoCrypthelper::validatepassword ($password,$hash);

PHP cryptr Cryptographic functions