Beispiel #1
0
function core_md5($x, $len)
{
    /* append padding */
    $x[$len >> 5] = NULL;
    $x[$len >> 5] |= 0x80 << $len % 32;
    $x[(zeroFill($len + 64, 9) << 4) + 14] = $len;
    $a = 1732584193;
    $b = -271733879;
    $c = -1732584194;
    $d = 271733878;
    for ($i = 0; $i < count($x); $i += 16) {
        $olda = $a;
        $oldb = $b;
        $oldc = $c;
        $oldd = $d;
        for ($j = 0; $j <= 15; $j++) {
            if (!isset($x[$i + $j])) {
                $x[$i + $j] = NULL;
            }
        }
        $a = md5_ff($a, $b, $c, $d, $x[$i + 0], 7, -680876936);
        $d = md5_ff($d, $a, $b, $c, $x[$i + 1], 12, -389564586);
        $c = md5_ff($c, $d, $a, $b, $x[$i + 2], 17, 606105819);
        $b = md5_ff($b, $c, $d, $a, $x[$i + 3], 22, -1044525330);
        $a = md5_ff($a, $b, $c, $d, $x[$i + 4], 7, -176418897);
        $d = md5_ff($d, $a, $b, $c, $x[$i + 5], 12, 1200080426);
        $c = md5_ff($c, $d, $a, $b, $x[$i + 6], 17, -1473231341);
        $b = md5_ff($b, $c, $d, $a, $x[$i + 7], 22, -45705983);
        $a = md5_ff($a, $b, $c, $d, $x[$i + 8], 7, 1770035416);
        $d = md5_ff($d, $a, $b, $c, $x[$i + 9], 12, -1958414417);
        $c = md5_ff($c, $d, $a, $b, $x[$i + 10], 17, -42063);
        $b = md5_ff($b, $c, $d, $a, $x[$i + 11], 22, -1990404162);
        $a = md5_ff($a, $b, $c, $d, $x[$i + 12], 7, 1804603682);
        $d = md5_ff($d, $a, $b, $c, $x[$i + 13], 12, -40341101);
        $c = md5_ff($c, $d, $a, $b, $x[$i + 14], 17, -1502002290);
        $b = md5_ff($b, $c, $d, $a, $x[$i + 15], 22, 1236535329);
        $a = md5_gg($a, $b, $c, $d, $x[$i + 1], 5, -165796510);
        $d = md5_gg($d, $a, $b, $c, $x[$i + 6], 9, -1069501632);
        $c = md5_gg($c, $d, $a, $b, $x[$i + 11], 14, 643717713);
        $b = md5_gg($b, $c, $d, $a, $x[$i + 0], 20, -373897302);
        $a = md5_gg($a, $b, $c, $d, $x[$i + 5], 5, -701558691);
        $d = md5_gg($d, $a, $b, $c, $x[$i + 10], 9, 38016083);
        $c = md5_gg($c, $d, $a, $b, $x[$i + 15], 14, -660478335);
        $b = md5_gg($b, $c, $d, $a, $x[$i + 4], 20, -405537848);
        $a = md5_gg($a, $b, $c, $d, $x[$i + 9], 5, 568446438);
        $d = md5_gg($d, $a, $b, $c, $x[$i + 14], 9, -1019803690);
        $c = md5_gg($c, $d, $a, $b, $x[$i + 3], 14, -187363961);
        $b = md5_gg($b, $c, $d, $a, $x[$i + 8], 20, 1163531501);
        $a = md5_gg($a, $b, $c, $d, $x[$i + 13], 5, -1444681467);
        $d = md5_gg($d, $a, $b, $c, $x[$i + 2], 9, -51403784);
        $c = md5_gg($c, $d, $a, $b, $x[$i + 7], 14, 1735328473);
        $b = md5_gg($b, $c, $d, $a, $x[$i + 12], 20, -1926607734);
        $a = md5_hh($a, $b, $c, $d, $x[$i + 5], 4, -378558);
        $d = md5_hh($d, $a, $b, $c, $x[$i + 8], 11, -2022574463);
        $c = md5_hh($c, $d, $a, $b, $x[$i + 11], 16, 1839030562);
        $b = md5_hh($b, $c, $d, $a, $x[$i + 14], 23, -35309556);
        $a = md5_hh($a, $b, $c, $d, $x[$i + 1], 4, -1530992060);
        $d = md5_hh($d, $a, $b, $c, $x[$i + 4], 11, 1272893353);
        $c = md5_hh($c, $d, $a, $b, $x[$i + 7], 16, -155497632);
        $b = md5_hh($b, $c, $d, $a, $x[$i + 10], 23, -1094730640);
        $a = md5_hh($a, $b, $c, $d, $x[$i + 13], 4, 681279174);
        $d = md5_hh($d, $a, $b, $c, $x[$i + 0], 11, -358537222);
        $c = md5_hh($c, $d, $a, $b, $x[$i + 3], 16, -722521979);
        $b = md5_hh($b, $c, $d, $a, $x[$i + 6], 23, 76029189);
        $a = md5_hh($a, $b, $c, $d, $x[$i + 9], 4, -640364487);
        $d = md5_hh($d, $a, $b, $c, $x[$i + 12], 11, -421815835);
        $c = md5_hh($c, $d, $a, $b, $x[$i + 15], 16, 530742520);
        $b = md5_hh($b, $c, $d, $a, $x[$i + 2], 23, -995338651);
        $a = md5_ii($a, $b, $c, $d, $x[$i + 0], 6, -198630844);
        $d = md5_ii($d, $a, $b, $c, $x[$i + 7], 10, 1126891415);
        $c = md5_ii($c, $d, $a, $b, $x[$i + 14], 15, -1416354905);
        $b = md5_ii($b, $c, $d, $a, $x[$i + 5], 21, -57434055);
        $a = md5_ii($a, $b, $c, $d, $x[$i + 12], 6, 1700485571);
        $d = md5_ii($d, $a, $b, $c, $x[$i + 3], 10, -1894986606);
        $c = md5_ii($c, $d, $a, $b, $x[$i + 10], 15, -1051523);
        $b = md5_ii($b, $c, $d, $a, $x[$i + 1], 21, -2054922799);
        $a = md5_ii($a, $b, $c, $d, $x[$i + 8], 6, 1873313359);
        $d = md5_ii($d, $a, $b, $c, $x[$i + 15], 10, -30611744);
        $c = md5_ii($c, $d, $a, $b, $x[$i + 6], 15, -1560198380);
        $b = md5_ii($b, $c, $d, $a, $x[$i + 13], 21, 1309151649);
        $a = md5_ii($a, $b, $c, $d, $x[$i + 4], 6, -145523070);
        $d = md5_ii($d, $a, $b, $c, $x[$i + 11], 10, -1120210379);
        $c = md5_ii($c, $d, $a, $b, $x[$i + 2], 15, 718787259);
        $b = md5_ii($b, $c, $d, $a, $x[$i + 9], 21, -343485551);
        $a = safe_add($a, $olda);
        $b = safe_add($b, $oldb);
        $c = safe_add($c, $oldc);
        $d = safe_add($d, $oldd);
    }
    return array($a, $b, $c, $d);
}
function md5_oneround($s, $io)
{
    $s = str_pad($s, 64, chr(0x0));
    $x = array_fill(0, 16, 0);
    for ($i = 0; $i < 64; $i++) {
        $x[$i >> 2] |= (($io ? 0x36 : 0x5c) ^ ord($s[$i])) << $i % 4 * 8;
    }
    $a = $olda = 1732584193;
    $b = $oldb = -271733879;
    $c = $oldc = -1732584194;
    $d = $oldd = 271733878;
    $a = md5_ff($a, $b, $c, $d, $x[0], 7, -680876936);
    $d = md5_ff($d, $a, $b, $c, $x[1], 12, -389564586);
    $c = md5_ff($c, $d, $a, $b, $x[2], 17, 606105819);
    $b = md5_ff($b, $c, $d, $a, $x[3], 22, -1044525330);
    $a = md5_ff($a, $b, $c, $d, $x[4], 7, -176418897);
    $d = md5_ff($d, $a, $b, $c, $x[5], 12, 1200080426);
    $c = md5_ff($c, $d, $a, $b, $x[6], 17, -1473231341);
    $b = md5_ff($b, $c, $d, $a, $x[7], 22, -45705983);
    $a = md5_ff($a, $b, $c, $d, $x[8], 7, 1770035416);
    $d = md5_ff($d, $a, $b, $c, $x[9], 12, -1958414417);
    $c = md5_ff($c, $d, $a, $b, $x[10], 17, -42063);
    $b = md5_ff($b, $c, $d, $a, $x[11], 22, -1990404162);
    $a = md5_ff($a, $b, $c, $d, $x[12], 7, 1804603682);
    $d = md5_ff($d, $a, $b, $c, $x[13], 12, -40341101);
    $c = md5_ff($c, $d, $a, $b, $x[14], 17, -1502002290);
    $b = md5_ff($b, $c, $d, $a, $x[15], 22, 1236535329);
    $a = md5_gg($a, $b, $c, $d, $x[1], 5, -165796510);
    $d = md5_gg($d, $a, $b, $c, $x[6], 9, -1069501632);
    $c = md5_gg($c, $d, $a, $b, $x[11], 14, 643717713);
    $b = md5_gg($b, $c, $d, $a, $x[0], 20, -373897302);
    $a = md5_gg($a, $b, $c, $d, $x[5], 5, -701558691);
    $d = md5_gg($d, $a, $b, $c, $x[10], 9, 38016083);
    $c = md5_gg($c, $d, $a, $b, $x[15], 14, -660478335);
    $b = md5_gg($b, $c, $d, $a, $x[4], 20, -405537848);
    $a = md5_gg($a, $b, $c, $d, $x[9], 5, 568446438);
    $d = md5_gg($d, $a, $b, $c, $x[14], 9, -1019803690);
    $c = md5_gg($c, $d, $a, $b, $x[3], 14, -187363961);
    $b = md5_gg($b, $c, $d, $a, $x[8], 20, 1163531501);
    $a = md5_gg($a, $b, $c, $d, $x[13], 5, -1444681467);
    $d = md5_gg($d, $a, $b, $c, $x[2], 9, -51403784);
    $c = md5_gg($c, $d, $a, $b, $x[7], 14, 1735328473);
    $b = md5_gg($b, $c, $d, $a, $x[12], 20, -1926607734);
    $a = md5_hh($a, $b, $c, $d, $x[5], 4, -378558);
    $d = md5_hh($d, $a, $b, $c, $x[8], 11, -2022574463);
    $c = md5_hh($c, $d, $a, $b, $x[11], 16, 1839030562);
    $b = md5_hh($b, $c, $d, $a, $x[14], 23, -35309556);
    $a = md5_hh($a, $b, $c, $d, $x[1], 4, -1530992060);
    $d = md5_hh($d, $a, $b, $c, $x[4], 11, 1272893353);
    $c = md5_hh($c, $d, $a, $b, $x[7], 16, -155497632);
    $b = md5_hh($b, $c, $d, $a, $x[10], 23, -1094730640);
    $a = md5_hh($a, $b, $c, $d, $x[13], 4, 681279174);
    $d = md5_hh($d, $a, $b, $c, $x[0], 11, -358537222);
    $c = md5_hh($c, $d, $a, $b, $x[3], 16, -722521979);
    $b = md5_hh($b, $c, $d, $a, $x[6], 23, 76029189);
    $a = md5_hh($a, $b, $c, $d, $x[9], 4, -640364487);
    $d = md5_hh($d, $a, $b, $c, $x[12], 11, -421815835);
    $c = md5_hh($c, $d, $a, $b, $x[15], 16, 530742520);
    $b = md5_hh($b, $c, $d, $a, $x[2], 23, -995338651);
    $a = md5_ii($a, $b, $c, $d, $x[0], 6, -198630844);
    $d = md5_ii($d, $a, $b, $c, $x[7], 10, 1126891415);
    $c = md5_ii($c, $d, $a, $b, $x[14], 15, -1416354905);
    $b = md5_ii($b, $c, $d, $a, $x[5], 21, -57434055);
    $a = md5_ii($a, $b, $c, $d, $x[12], 6, 1700485571);
    $d = md5_ii($d, $a, $b, $c, $x[3], 10, -1894986606);
    $c = md5_ii($c, $d, $a, $b, $x[10], 15, -1051523);
    $b = md5_ii($b, $c, $d, $a, $x[1], 21, -2054922799);
    $a = md5_ii($a, $b, $c, $d, $x[8], 6, 1873313359);
    $d = md5_ii($d, $a, $b, $c, $x[15], 10, -30611744);
    $c = md5_ii($c, $d, $a, $b, $x[6], 15, -1560198380);
    $b = md5_ii($b, $c, $d, $a, $x[13], 21, 1309151649);
    $a = md5_ii($a, $b, $c, $d, $x[4], 6, -145523070);
    $d = md5_ii($d, $a, $b, $c, $x[11], 10, -1120210379);
    $c = md5_ii($c, $d, $a, $b, $x[2], 15, 718787259);
    $b = md5_ii($b, $c, $d, $a, $x[9], 21, -343485551);
    $a = safe_add($a, $olda);
    $b = safe_add($b, $oldb);
    $c = safe_add($c, $oldc);
    $d = safe_add($d, $oldd);
    return rhex($a) . rhex($b) . rhex($c) . rhex($d);
}