mirror of
https://github.com/phpseclib/phpseclib.git
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329 lines
11 KiB
PHP
329 lines
11 KiB
PHP
<?php
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/**
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* @author Andreas Fischer <bantu@phpbb.com>
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* @copyright 2013 Andreas Fischer
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* @license http://www.opensource.org/licenses/mit-license.html MIT License
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*/
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require_once 'Crypt/AES.php';
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abstract class Unit_Crypt_AES_TestCase extends PhpseclibTestCase
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{
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protected $engine;
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private function _checkEngine($aes)
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{
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if ($aes->getEngine() != $this->engine) {
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$engine = 'internal';
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switch ($this->engine) {
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case CRYPT_ENGINE_OPENSSL:
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$engine = 'OpenSSL';
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break;
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case CRYPT_ENGINE_MCRYPT:
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$engine = 'mcrypt';
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}
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self::markTestSkipped('Unable to initialize ' . $engine . ' engine');
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}
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}
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/**
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* Produces all combinations of test values.
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*
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* @return array
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*/
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public function continuousBufferCombos()
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{
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$modes = array(
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'CRYPT_AES_MODE_CTR',
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'CRYPT_AES_MODE_OFB',
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'CRYPT_AES_MODE_CFB',
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);
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$plaintexts = array(
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'',
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'12345678901234567', // https://github.com/phpseclib/phpseclib/issues/39
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"\xDE\xAD\xBE\xAF",
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':-):-):-):-):-):-)', // https://github.com/phpseclib/phpseclib/pull/43
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);
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$ivs = array(
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'',
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'test123',
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);
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$keys = array(
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'',
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':-8', // https://github.com/phpseclib/phpseclib/pull/43
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'FOOBARZ',
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);
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$result = array();
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// @codingStandardsIgnoreStart
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foreach ($modes as $mode)
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foreach ($plaintexts as $plaintext)
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foreach ($ivs as $iv)
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foreach ($keys as $key)
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$result[] = array($mode, $plaintext, $iv, $key);
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// @codingStandardsIgnoreEnd
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return $result;
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}
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/**
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* @dataProvider continuousBufferCombos
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*/
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public function testEncryptDecryptWithContinuousBuffer($mode, $plaintext, $iv, $key)
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{
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$aes = new Crypt_AES(constant($mode));
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$aes->setPreferredEngine($this->engine);
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$aes->enableContinuousBuffer();
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$aes->setIV($iv);
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$aes->setKey($key);
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$this->_checkEngine($aes);
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$actual = '';
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for ($i = 0, $strlen = strlen($plaintext); $i < $strlen; ++$i) {
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$actual .= $aes->decrypt($aes->encrypt($plaintext[$i]));
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}
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$this->assertEquals($plaintext, $actual);
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}
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/**
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* @group github451
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*/
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public function testKeyPaddingRijndael()
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{
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// this test case is from the following URL:
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// https://web.archive.org/web/20070209120224/http://fp.gladman.plus.com/cryptography_technology/rijndael/aesdvec.zip
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$aes = new Crypt_Rijndael();
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$aes->setPreferredEngine($this->engine);
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$aes->disablePadding();
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$aes->setKey(pack('H*', '2b7e151628aed2a6abf7158809cf4f3c762e7160')); // 160-bit key. Valid in Rijndael.
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//$this->_checkEngine($aes); // should only work in internal mode
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$ciphertext = $aes->encrypt(pack('H*', '3243f6a8885a308d313198a2e0370734'));
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$this->assertEquals($ciphertext, pack('H*', '231d844639b31b412211cfe93712b880'));
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}
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/**
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* @group github451
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*/
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public function testKeyPaddingAES()
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{
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// same as the above - just with a different ciphertext
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$aes = new Crypt_AES();
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$aes->setPreferredEngine($this->engine);
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$aes->disablePadding();
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$aes->setKey(pack('H*', '2b7e151628aed2a6abf7158809cf4f3c762e7160')); // 160-bit key. AES should null pad to 192-bits
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$this->_checkEngine($aes);
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$ciphertext = $aes->encrypt(pack('H*', '3243f6a8885a308d313198a2e0370734'));
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$this->assertEquals($ciphertext, pack('H*', 'c109292b173f841b88e0ee49f13db8c0'));
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}
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/**
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* Produces all combinations of test values.
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*
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* @return array
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*/
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public function continuousBufferBatteryCombos()
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{
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$modes = array(
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'CRYPT_MODE_CTR',
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'CRYPT_MODE_OFB',
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'CRYPT_MODE_CFB',
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);
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$combos = array(
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array(16),
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array(17),
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array(1, 16),
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array(3, 6, 7), // (3 to test the openssl_encrypt call and the buffer creation, 6 to test the exclusive use of the buffer and 7 to test the buffer's exhaustion and recreation)
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array(15, 4), // (15 to test openssl_encrypt call and buffer creation and 4 to test something that spans multpile bloc
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array(3, 6, 10, 16), // this is why the strlen check in the buffer-only code was needed
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array(16, 16), // two full size blocks
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array(3, 6, 7, 16), // partial block + full size block
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array(16, 3, 6, 7),
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// a few others just for fun
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array(32,32),
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array(31,31),
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array(17,17),
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array(99, 99)
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);
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$result = array();
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// @codingStandardsIgnoreStart
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foreach ($modes as $mode)
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foreach ($combos as $combo)
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foreach (array('encrypt', 'decrypt') as $op)
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$result[] = array($op, $mode, $combo);
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// @codingStandardsIgnoreEnd
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return $result;
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}
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/**
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* @dataProvider continuousBufferBatteryCombos
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*/
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public function testContinuousBufferBattery($op, $mode, $test)
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{
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$iv = str_repeat('x', 16);
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$key = str_repeat('a', 16);
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$aes = new Crypt_AES(constant($mode));
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$aes->setPreferredEngine($this->engine);
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$aes->setKey($key);
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$aes->setIV($iv);
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$this->_checkEngine($aes);
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$str = '';
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$result = '';
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foreach ($test as $len) {
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$temp = str_repeat('d', $len);
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$str.= $temp;
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}
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$c1 = $aes->$op($str);
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$aes = new Crypt_AES(constant($mode));
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$aes->setPreferredEngine($this->engine);
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$aes->enableContinuousBuffer();
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$aes->setKey($key);
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$aes->setIV($iv);
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$this->_checkEngine($aes);
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foreach ($test as $len) {
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$temp = str_repeat('d', $len);
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$output = $aes->$op($temp);
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$result.= $output;
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}
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$c2 = $result;
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$this->assertSame(bin2hex($c1), bin2hex($c2));
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}
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/**
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* @dataProvider continuousBufferBatteryCombos
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*/
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// pretty much the same as testContinuousBufferBattery with the caveat that continuous mode is not enabled
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public function testNonContinuousBufferBattery($op, $mode, $test)
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{
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if (count($test) == 1) {
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return;
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}
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$iv = str_repeat('x', 16);
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$key = str_repeat('a', 16);
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$aes = new Crypt_AES(constant($mode));
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$aes->setPreferredEngine($this->engine);
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$aes->setKey($key);
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$aes->setIV($iv);
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$this->_checkEngine($aes);
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$str = '';
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$result = '';
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foreach ($test as $len) {
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$temp = str_repeat('d', $len);
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$str.= $temp;
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}
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$c1 = $aes->$op($str);
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$aes = new Crypt_AES(constant($mode));
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$aes->setPreferredEngine($this->engine);
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$aes->setKey($key);
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$aes->setIV($iv);
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$this->_checkEngine($aes);
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foreach ($test as $len) {
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$temp = str_repeat('d', $len);
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$output = $aes->$op($temp);
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$result.= $output;
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}
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$c2 = $result;
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$this->assertNotSame(bin2hex($c1), bin2hex($c2));
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}
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// from http://csrc.nist.gov/groups/STM/cavp/documents/aes/AESAVS.pdf#page=16
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public function testGFSBox128()
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{
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$aes = new Crypt_AES();
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$aes->setKey(pack('H*', '00000000000000000000000000000000'));
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$aes->setIV(pack('H*', '00000000000000000000000000000000'));
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$aes->setPreferredEngine($this->engine);
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$this->_checkEngine($aes);
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$result = bin2hex($aes->encrypt('f34481ec3cc627bacd5dc3fb08f273e6'));
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$this->assertSame($result, '0336763e966d92595a567cc9ce537f5e');
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$result = $aes->encrypt('9798c4640bad75c7c3227db910174e72');
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$this->assertSame($result, 'a9a1631bf4996954ebc093957b234589');
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$result = $aes->encrypt('96ab5c2ff612d9dfaae8c31f30c42168');
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$this->assertSame($result, 'ff4f8391a6a40ca5b25d23bedd44a597');
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$result = $aes->encrypt('6a118a874519e64e9963798a503f1d35');
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$this->assertSame($result, 'dc43be40be0e53712f7e2bf5ca707209');
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$result = $aes->encrypt('cb9fceec81286ca3e989bd979b0cb284');
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$this->assertSame($result, '92beedab1895a94faa69b632e5cc47ce');
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$result = $aes->encrypt('b26aeb1874e47ca8358ff22378f09144');
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$this->assertSame($result, '459264f4798f6a78bacb89c15ed3d601');
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$result = $aes->encrypt('58c8e00b2631686d54eab84b91f0aca1');
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$this->assertSame($result, '08a4e2efec8a8e3312ca7460b9040bbf');
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}
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public function testGFSBox192()
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{
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$aes = new Crypt_AES();
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$aes->setKey(pack('H*', '000000000000000000000000000000000000000000000000'));
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$aes->setIV(pack('H*', '00000000000000000000000000000000'));
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$aes->setPreferredEngine($this->engine);
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$this->_checkEngine($aes);
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$result = bin2hex($aes->encrypt('1b077a6af4b7f98229de786d7516b639'));
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$this->assertSame($result, '275cfc0413d8ccb70513c3859b1d0f72');
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$result = $aes->encrypt('9c2d8842e5f48f57648205d39a239af1');
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$this->assertSame($result, 'c9b8135ff1b5adc413dfd053b21bd96d');
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$result = $aes->encrypt('bff52510095f518ecca60af4205444bb');
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$this->assertSame($result, '4a3650c3371ce2eb35e389a171427440');
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$result = $aes->encrypt('51719783d3185a535bd75adc65071ce1');
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$this->assertSame($result, '4f354592ff7c8847d2d0870ca9481b7c');
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$result = $aes->encrypt('26aa49dcfe7629a8901a69a9914e6dfd');
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$this->assertSame($result, 'd5e08bf9a182e857cf40b3a36ee248cc');
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$result = $aes->encrypt('941a4773058224e1ef66d10e0a6ee782');
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$this->assertSame($result, '067cd9d3749207791841562507fa9626');
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}
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public function testGFSBox256()
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{
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$aes = new Crypt_AES();
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$aes->setKey(pack('H*', '00000000000000000000000000000000' . '00000000000000000000000000000000'));
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$aes->setIV(pack('H*', '00000000000000000000000000000000'));
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$aes->setPreferredEngine($this->engine);
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$this->_checkEngine($aes);
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$result = bin2hex($aes->encrypt('014730f80ac625fe84f026c60bfd547d'));
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$this->assertSame($result, '5c9d844ed46f9885085e5d6a4f94c7d7');
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$result = $aes->encrypt('0b24af36193ce4665f2825d7b4749c98');
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$this->assertSame($result, 'a9ff75bd7cf6613d3731c77c3b6d0c04');
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$result = $aes->encrypt('761c1fe41a18acf20d241650611d90f1');
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$this->assertSame($result, '623a52fcea5d443e48d9181ab32c7421');
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$result = $aes->encrypt('8a560769d605868ad80d819bdba03771');
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$this->assertSame($result, '38f2c7ae10612415d27ca190d27da8b4');
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$result = $aes->encrypt('91fbef2d15a97816060bee1feaa49afe');
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$this->assertSame($result, '1bc704f1bce135ceb810341b216d7abe');
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}
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}
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