for ($i = 0; $i < $hexLen; $i++) {
$buffer = $buffer << 4 | $base16Chars[$hex[$i]];
$bufferedBits += 4;
if ($bufferedBits >= 6) {
$bufferedBits -= 6;
$base64 .= $base64Chars[$buffer >> $bufferedBits & 63];
$buffer &= (1 << $bufferedBits) - 1;
}
}
// finished consuming hex but less than 6 bits buffered
if ($bufferedBits) {
$base64 .= $base64Chars[$buffer << 6 - $bufferedBits];
}
// because base64
$base64 .= str_repeat('=', $hexLen % 3);
return $base64;
}
// don't output if we include this file into another script
if (!debug_backtrace()) {
$base16 = '49276d206b696c6c696e6720796f757220627261696e206c696b65206120706f69736f6e6f7573206d757368726f6f6d';
$base64 = 'SSdtIGtpbGxpbmcgeW91ciBicmFpbiBsaWtlIGEgcG9pc29ub3VzIG11c2hyb29t';
print "Sanity checking using built-in functions\n";
$sanity = base64_encode(hex2bin($base16)) === $base64;
print $sanity ? "Success!\n\n" : "Failure :(\n\n";
print "Converting hex to base64 with homebrew function\n";
$homebrew = hexToBase64($base16);
$homebrewSane = $homebrew === $base64;
print $homebrewSane ? "Success!\n\n" : "Failure :(\n\n";
$decodedHomebrew = base64_decode($homebrew);
print "Decoded string was:\n{$decodedHomebrew}\n";
}
<?php
include 'base64.php';
include 'var.php';
$n = $_GET['n'];
$pwd = $_GET['pwd'];
$res = $pwd;
//echo hash(sha1, $pwd);
for ($i = 0; $i < $n; $i++) {
$res = hash(sha1, $res);
}
//echo $res;echo '</br>';
$salt = substr($res, 0, 22);
$len = strlen($salt);
$salt = $salt . $pad;
//echo $salt;echo '</br>';
$options = ['cost' => 12, 'salt' => $salt];
//$options = ['cost' => 12];
$bcrypt = password_hash($res, PASSWORD_BCRYPT, $options);
//echo $bcrypt;echo '</br>';
$res = substr($bcrypt, 29, 31);
//echo $res;
//echo '</br>';
$res = hash(sha1, $res);
//echo $res;echo '</br>';
echo hexToBase64($res);
echo '</br>';
//echo base64_encode($res);echo '</br>';
