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<?php
/**
* @author Andreas Fischer <bantu@phpbb.com>
* @copyright MMXIII Andreas Fischer
* @license http://www.opensource.org/licenses/mit-license.html MIT License
*/
require_once 'Crypt/DES.php';
// the AES tests establish the correctness of the modes of operation. this test is inteded to establish the consistency of
// key and iv padding between the multiple engines
class Unit_Crypt_DESTest extends PhpseclibTestCase
{
public function testEncryptPadding()
{
$des = new Crypt_DES(CRYPT_MODE_CBC);
$des->setKey('d');
$des->setIV('d');
$des->setPreferredEngine(CRYPT_ENGINE_INTERNAL);
$result = pack('H*', '3e7613642049af1e');
$internal = $des->encrypt('d');
$this->assertEquals($result, $internal, 'Failed asserting that the internal engine produced the correct result');
$des->setPreferredEngine(CRYPT_ENGINE_MCRYPT);
if ($des->getEngine() == CRYPT_ENGINE_MCRYPT) {
$mcrypt = $des->encrypt('d');
$this->assertEquals($result, $mcrypt, 'Failed asserting that the mcrypt engine produced the correct result');
} else {
self::markTestSkipped('Unable to initialize mcrypt engine');
}
$des->setPreferredEngine(CRYPT_ENGINE_OPENSSL);
if ($des->getEngine() == CRYPT_ENGINE_OPENSSL) {
$openssl = $des->encrypt('d');
$this->assertEquals($result, $openssl, 'Failed asserting that the OpenSSL engine produced the correct result');
} else {
self::markTestSkipped('Unable to initialize OpenSSL engine');
}
}
// phpseclib null pads ciphertext's if they're not long enough and you're in ecb / cbc mode. this silent failure mode is consistent
// with mcrypt's behavior. maybe throwing an exception would be better but whatever. this test is more intended to establish consistent
// behavior between the various engine's
public function testDecryptPadding()
{
$des = new Crypt_DES(CRYPT_MODE_CBC);
$des->disablePadding();
// when the key and iv are not specified they should be null padded
//$des->setKey();
//$des->setIV();
$des->setPreferredEngine(CRYPT_ENGINE_INTERNAL);
$internal = $des->decrypt('d');
$result = pack('H*', '79b305d1ce555221');
$this->assertEquals($result, $internal, 'Failed asserting that the internal engine produced the correct result');
$des->setPreferredEngine(CRYPT_ENGINE_MCRYPT);
if ($des->getEngine() == CRYPT_ENGINE_MCRYPT) {
$mcrypt = $des->decrypt('d');
$this->assertEquals($result, $mcrypt, 'Failed asserting that the mcrypt engine produced the correct result');
} else {
self::markTestSkipped('Unable to initialize mcrypt engine');
}
$des->setPreferredEngine(CRYPT_ENGINE_OPENSSL);
if ($des->getEngine() == CRYPT_ENGINE_OPENSSL) {
$openssl = $des->decrypt('d');
$this->assertEquals($result, $openssl, 'Failed asserting that the OpenSSL engine produced the correct result');
} else {
self::markTestSkipped('Unable to initialize OpenSSL engine');
}
}
}
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