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phpseclib/tests/Unit/Crypt/DES.php
terrafrost f6e0c4b506 Crypt: add OpenSSL support
aside from the addition of OpenSSL support a few other changes have been included:

- setEngine(), as added by petrich, is depricated (not that it was ever in trunk to begin with)
  it has been replaced with isValidEngine() and setPreferredEngine().
- replace _generate_xor() with increment_str()
  _increment_str() had extra functionality that wasn't being used. ie. it could concatenate
  multiple successive string increments to one another automatically. but not only was that
  functionality not used - it also made the function less versatile. _increment_str() can be
  used more easily for iterative brute forcing (for example)
- rename Crypt_Base::_stringShift to Crypt_Base::_string_shift (for consistency)
- more expansive unit test coverage
2014-11-29 07:39:21 -06:00

69 lines
2.8 KiB
PHP

<?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_DES_TestCase extends PhpseclibTestCase
{
public function testEncryptPadding()
{
$des = new Crypt_DES(CRYPT_MODE_CBC);
$des->setKey('d');
$des->setIV('d');
$des->setPreferredEngine(CRYPT_MODE_INTERNAL);
$internal = $des->encrypt('d');
$des->setPreferredEngine(CRYPT_MODE_MCRYPT);
if ($des->getEngine() == CRYPT_MODE_MCRYPT) {
$mcrypt = $des->encrypt('d');
$this->assertEquals($internal, $mcrypt, 'Failed asserting that the internal and mcrypt engines produce identical results');
} else {
self::markTestSkipped('Unable to initialize mcrypt engine');
}
$des->setPreferredEngine(CRYPT_MODE_OPENSSL);
if ($des->getEngine() == CRYPT_MODE_OPENSSL) {
$openssl = $des->encrypt('d');
$this->assertEquals($internal, $openssl, 'Failed asserting that the internal and OpenSSL engines produce identical results');
} 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()
{
$des = new Crypt_DES(CRYPT_MODE_CBC);
// when the key and iv are not specified they should be null padded
//$des->setKey();
//$des->setIV();
$des->setPreferredEngine(CRYPT_MODE_INTERNAL);
$internal = $des->decrypt('d');
$des->setPreferredEngine(CRYPT_MODE_MCRYPT);
if ($des->getEngine() == CRYPT_MODE_MCRYPT) {
$mcrypt = $des->decrypt('d');
$this->assertEquals($internal, $mcrypt, 'Failed asserting that the internal and mcrypt engines produce identical results');
} else {
self::markTestSkipped('Unable to initialize mcrypt engine');
}
$des->setPreferredEngine(CRYPT_MODE_OPENSSL);
if ($des->getEngine() == CRYPT_MODE_OPENSSL) {
$openssl = $des->decrypt('d');
$this->assertEquals($internal, $openssl, 'Failed asserting that the internal and OpenSSL engines produce identical results');
} else {
self::markTestSkipped('Unable to initialize OpenSSL engine');
}
}
}