protected function getModuleData($moduleName)
{
$xxtea = new XXTEA();
$xxtea->setKey($this->config['key']);
$srcPath = $this->config['srcpath'] . DS . $moduleName;
$bytes = file_get_contents($srcPath);
$bytes = $this->config['sign'] . $xxtea->encrypt($bytes);
return $bytes;
}
/**
* Decrypts text with XXTEA algorithm.
*/
public static function decrypt($key, $text)
{
$k = XXTEA::str2long($key);
$v = XXTEA::str2long($text);
$n = count($v);
$z = $v[$n - 1];
$y = $v[0];
$d = 0.0;
$m = 0;
$e = 0;
$q = floor(6 + 52 / $n);
$s = $q * $d;
while ($s != 0) {
$e = XXTEA::urshift($s, 2) & 3;
for ($i = $n - 1; $i >= 0; $i--) {
$z = $v[$i > 0 ? $i - 1 : $n - 1];
$m = XXTEA::int32((XXTEA::urshift($z, 5) ^ $y << 2) + (XXTEA::urshift($y, 3) ^ $z << 4)) ^ XXTEA::int32(($s ^ $y) + ($k[$i & 3 ^ $e] ^ $z));
$y = $v[$i] = XXTEA::int32($v[$i] - $m);
}
$s = XXTEA::int32($s - $d);
}
return XXTEA::long2str($v);
}
print "ARC4 otv decrypted is ok: " . bool_str(Base16::encode($arc4tvd) == "0123456789abcdef") . "<br/>\n";
print "ARC4 encrypted in UTF-8: " . Base16::encode($arc4e) . "<br/>\n";
print "ARC4 decrypted in UTF-8: " . $arc4d . "<br/><br/>\n";
/**
* Test XXTEA with one official test vector and custom input.
* Vectors from: http://www.crypt.co.za/post/27
*/
$xxttvk = Base16::decode("9e3779b99b9773e9b979379e6b695156");
$xxttvt = Base16::decode("0102040810204080fffefcf8f0e0c080");
$xxttve = XXTEA::encrypt($xxttvk, $xxttvt);
$xxttvd = XXTEA::decrypt($xxttvk, $xxttve);
//
$xxteak = "1234567890123456";
$xxteae = XXTEA::encrypt($xxteak, PKCS7::pad($input, 4));
// Needs padding.
$xxtead = PKCS7::unpad(XXTEA::decrypt($xxteak, $xxteae));
// Needs unpadding.
//
print "XXTEA otv encrypted is ok: " . bool_str(Base16::encode($xxttve) == "01b815fd2e4894d13555da434c9d868a") . "<br/>\n";
print "XXTEA otv decrypted is ok: " . bool_str(Base16::encode($xxttvd) == "0102040810204080fffefcf8f0e0c080") . "<br/>\n";
print "XXTEA encrypted in UTF-8: " . Base16::encode($xxteae) . "<br/>\n";
print "XXTEA decrypted in UTF-8: " . $xxtead . "<br/><br/>\n";
/**
* Test AES-128 with one official test vector and custom input.
* Vectors from: http://www.csrc.nist.gov/publications/fips/fips197/fips-197.pdf
*/
$aes128tvk = pack("c*", 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf);
$aes128tvt = pack("c*", 0x0, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff);
$aes128tve = AES::encrypt($aes128tvk, $aes128tvt);
// ECB mode, no padding needed.
$aes128tvd = AES::decrypt($aes128tvk, $aes128tve);
protected function createOutputZIP(array $modules, array $bytes)
{
// create ZIP archive
$zipfile = $this->config['output'];
$zip = new ZipArchive();
if (!$zip->open($zipfile, ZIPARCHIVE::OVERWRITE | ZIPARCHIVE::CM_STORE)) {
return false;
}
if (!$this->config['quiet']) {
printf("create ZIP archive file: %s\n", $zipfile);
}
foreach ($modules as $path => $module) {
$zip->addFromString($this->config['prefix'] . $module['moduleName'], $bytes[$path]);
}
$zip->close();
if ($this->config['encrypt'] == self::ENCRYPT_XXTEA_ZIP) {
$xxtea = new XXTEA();
$xxtea->setKey($this->config['key']);
file_put_contents($zipfile, $this->config['sign'] . $xxtea->encrypt(file_get_contents($zipfile)));
}
if (!$this->config['quiet']) {
printf("done.\n\n");
}
return true;
}
function xxtea_decrypt($str, $key)
{
return XXTEA::decrypt($str, $key);
}
protected function getModulesData(array $modules, $key = null, $sign = null)
{
if (!empty($key)) {
$xxtea = new XXTEA();
$xxtea->setKey($key);
}
$modulesBytes = array();
foreach ($modules as $path => $module) {
$bytes = file_get_contents($path);
if (!empty($key)) {
$bytes = $sign . $xxtea->encrypt($bytes);
}
file_put_contents($module['tempFilePath'], $bytes);
if (!$bytes) {
print "\n";
return false;
}
$modulesBytes[$path] = $bytes;
if (!$this->config['quiet']) {
printf(" > get bytes [% 3d KB] %s\n", ceil(strlen($bytes) / 1024), $module['moduleName']);
}
}
return $modulesBytes;
}
