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phpseclib/tests/Unit/Crypt/AES/TestCase.php

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<?php
/**
* @author Andreas Fischer <bantu@phpbb.com>
* @copyright 2013 Andreas Fischer
* @license http://www.opensource.org/licenses/mit-license.html MIT License
*/
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require_once 'Crypt/AES.php';
abstract class Unit_Crypt_AES_TestCase extends PhpseclibTestCase
{
static public function setUpBeforeClass()
{
parent::setUpBeforeClass();
self::reRequireFile('Crypt/Rijndael.php');
self::reRequireFile('Crypt/AES.php');
}
/**
* Produces all combinations of test values.
*
* @return array
*/
public function continuousBufferCombos()
{
$modes = array(
'Crypt_AES::MODE_CTR',
'Crypt_AES::MODE_OFB',
'Crypt_AES::MODE_CFB',
);
$plaintexts = array(
'',
'12345678901234567', // https://github.com/phpseclib/phpseclib/issues/39
"\xDE\xAD\xBE\xAF",
':-):-):-):-):-):-)', // https://github.com/phpseclib/phpseclib/pull/43
);
$ivs = array(
'',
'test123',
);
$keys = array(
'',
':-8', // https://github.com/phpseclib/phpseclib/pull/43
'FOOBARZ',
);
$result = array();
// @codingStandardsIgnoreStart
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foreach ($modes as $mode)
foreach ($plaintexts as $plaintext)
foreach ($ivs as $iv)
foreach ($keys as $key)
$result[] = array($mode, $plaintext, $iv, $key);
// @codingStandardsIgnoreEnd
return $result;
}
/**
* @dataProvider continuousBufferCombos
*/
public function testEncryptDecryptWithContinuousBuffer($mode, $plaintext, $iv, $key)
{
$aes = new Crypt_AES(constant($mode));
$aes->enableContinuousBuffer();
$aes->setIV($iv);
$aes->setKey($key);
$actual = '';
for ($i = 0, $strlen = strlen($plaintext); $i < $strlen; ++$i) {
$actual .= $aes->decrypt($aes->encrypt($plaintext[$i]));
}
$this->assertEquals($plaintext, $actual);
}
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/**
* @group github451
*/
public function testKeyPaddingRijndael()
{
// this test case is from the following URL:
// https://web.archive.org/web/20070209120224/http://fp.gladman.plus.com/cryptography_technology/rijndael/aesdvec.zip
$aes = new Crypt_Rijndael();
$aes->disablePadding();
$aes->setKey(pack('H*', '2b7e151628aed2a6abf7158809cf4f3c762e7160')); // 160-bit key. Valid in Rijndael.
$ciphertext = $aes->encrypt(pack('H*', '3243f6a8885a308d313198a2e0370734'));
$this->assertEquals($ciphertext, pack('H*', '231d844639b31b412211cfe93712b880'));
}
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/**
* @group github451
*/
public function testKeyPaddingAES()
{
// same as the above - just with a different ciphertext
$aes = new Crypt_AES();
$aes->disablePadding();
$aes->setKey(pack('H*', '2b7e151628aed2a6abf7158809cf4f3c762e7160')); // 160-bit key. AES should null pad to 192-bits
$ciphertext = $aes->encrypt(pack('H*', '3243f6a8885a308d313198a2e0370734'));
$this->assertEquals($ciphertext, pack('H*', 'c109292b173f841b88e0ee49f13db8c0'));
}
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}