PHP evalCrossTotalの例

コード例 #1

ファイル: crypt_1.php プロジェクト: astrxlegaulois/HTS

function encryptString($strString, $strPassword)
{
    // $strString is the content of the entire file with serials
    echo "strString: " . $strString . "<br/>";
    echo "strPassword: "******"<br/>";
    //$strPasswordMD5 = md5($strPassword);
    $strPasswordMD5 = '00000000000000000000000000000000';
    echo "strPasswordMD5: " . $strPasswordMD5 . "<br/>";
    $intMD5Total = evalCrossTotal($strPasswordMD5);
    echo "intMD5Total: " . $intMD5Total . "<br/>";
    $arrEncryptedValues = array();
    $intStrlen = strlen($strString);
    echo "intStrlen: " . $intStrlen . "<br/>";
    for ($i = 0; $i < $intStrlen; $i++) {
        echo "i: " . $i . "<br/>";
        $arrEncryptedValues[] = ord(substr($strString, $i, 1)) + ('0x0' . substr($strPasswordMD5, $i % 32, 1)) - $intMD5Total;
        echo "ord: " . ord(substr($strString, $i, 1)) . "<br/>";
        echo "substr(strPasswordMD5: " . ('0x0' . substr($strPasswordMD5, $i % 32, 1)) . "<br/>";
        echo "intMD5Total: " . $intMD5Total . "<br/>";
        $temp = ord(substr($strString, $i, 1)) + ('0x0' . substr($strPasswordMD5, $i % 32, 1)) - $intMD5Total;
        echo "temp: " . $temp . "<br/>";
        $intMD5Total = evalCrossTotal(substr(md5(substr($strString, 0, $i + 1)), 0, 16) . substr(md5($intMD5Total), 0, 16));
        echo "newintMD5Total: " . $intMD5Total . "<br/><br/>";
    }
    return implode(' ', $arrEncryptedValues);
}

コード例 #2

ファイル: encryption.php プロジェクト: miumiug/hackthissite

function encryptString($strString, $strPassword)
{
    // $strString is the content of the entire file with serials
    $strPasswordMD5 = md5($strPassword);
    $intMD5Total = evalCrossTotal($strPasswordMD5);
    $arrEncryptedValues = array();
    $intStrlen = strlen($strString);
    for ($i = 0; $i < $intStrlen; $i++) {
        $arrEncryptedValues[] = ord(substr($strString, $i, 1)) + ('0x0' . substr($strPasswordMD5, $i % 32, 1)) - $intMD5Total;
        $intMD5Total = evalCrossTotal(substr(md5(substr($strString, 0, $i + 1)), 0, 16) . substr(md5($intMD5Total), 0, 16));
    }
    return implode(' ', $arrEncryptedValues);
}

コード例 #3

ファイル: encrypt.php プロジェクト: phutchins/hackthissite

function decryptString($encString, $strPassword)
{
    $strPasswordMD5 = md5($strPassword);
    $intMD5Total = evalCrossTotal($strPasswordMD5);
    $strString = '';
    $arrEncryptedValues = explode(' ', $encString);
    $intStrlen = count($arrEncryptedValues);
    for ($i = 0; $i < $intStrlen; $i++) {
        echo "Enc val [" . $i . "]:" . $arrEncryptedValues[$i] . "\n";
        $strString .= chr(intval($arrEncryptedValues[$i]) - ('0x0' . substr($strPasswordMD5, $i % 32, 1)) + $intMD5Total);
        //$strString .= chr('0x0'. substr($strPasswordMD5, $i%32, 1))
        // ord <=> chr   (ord gets decimal for ascii, chr returns ascii for decimal)
        // implode explode (convert to integer with intval)
        $intMD5Total = evalCrossTotal(substr(md5(substr($strString, 0, $i + 1)), 0, 16) . substr(md5($intMD5Total), 0, 16));
    }
    return $strString;
}