diff options
Diffstat (limited to 'tests/codeigniter/libraries')
| -rw-r--r-- | tests/codeigniter/libraries/Encryption_test.php | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/tests/codeigniter/libraries/Encryption_test.php b/tests/codeigniter/libraries/Encryption_test.php new file mode 100644 index 000000000..41617c2f4 --- /dev/null +++ b/tests/codeigniter/libraries/Encryption_test.php @@ -0,0 +1,186 @@ +<?php + +class Encryption_test extends CI_TestCase { + + public function set_up() + { + $this->ci_set_config('encryption_key', "\xd0\xc9\x08\xc4\xde\x52\x12\x6e\xf8\xcc\xdb\x03\xea\xa0\x3a\x5c"); + $this->encryption = new CI_Encryption(); + $this->ci_instance_var('encryption', $this->encryption); + } + + // -------------------------------------------------------------------- + + public function test_portability() + { + if ( ! $this->encryption->drivers['mcrypt'] OR ! $this->encryption->drivers['openssl']) + { + $this->markTestAsSkipped('Both MCrypt and OpenSSL support are required for portability tests.'); + return; + } + + $message = 'This is a message encrypted via MCrypt and decrypted via OpenSSL, or vice-versa.'; + + // Format is: <Cipher name>, <Cipher mode>, <Key size> + $portable = array( + array('aes-128', 'cbc', 16), + array('aes-128', 'cfb', 16), + array('aes-128', 'cfb8', 16), + array('aes-128', 'ofb', 16), + array('aes-128', 'ecb', 16), + array('aes-128', 'ctr', 16), + array('aes-192', 'cbc', 24), + array('aes-192', 'cfb', 24), + array('aes-192', 'cfb8', 24), + array('aes-192', 'ofb', 24), + array('aes-192', 'ecb', 24), + array('aes-192', 'ctr', 24), + array('aes-256', 'cbc', 32), + array('aes-256', 'cfb', 32), + array('aes-256', 'cfb8', 32), + array('aes-256', 'ofb', 32), + array('aes-256', 'ecb', 32), + array('aes-256', 'ctr', 32), + array('des', 'cbc', 7), + array('des', 'cfb', 7), + array('des', 'cfb8', 7), + array('des', 'ofb', 7), + array('des', 'ecb', 7), + array('tripledes', 'cbc', 7), + array('tripledes', 'cfb', 7), + array('tripledes', 'cfb8', 7), + array('tripledes', 'ofb', 7), + array('tripledes', 'cbc', 14), + array('tripledes', 'cfb', 14), + array('tripledes', 'cfb8', 14), + array('tripledes', 'ofb', 14), + array('tripledes', 'cbc', 21), + array('tripledes', 'cfb', 21), + array('tripledes', 'cfb8', 21), + array('tripledes', 'ofb', 21), + array('blowfish', 'cbc', 16), + array('blowfish', 'cfb', 16), + array('blowfish', 'ofb', 16), + array('blowfish', 'ecb', 16), + array('blowfish', 'cbc', 56), + array('blowfish', 'cfb', 56), + array('blowfish', 'ofb', 56), + array('blowfish', 'ecb', 56), + array('cast5', 'cbc', 5), + array('cast5', 'cfb', 5), + array('cast5', 'ofb', 5), + array('cast5', 'ecb', 5), + array('cast5', 'cbc', 8), + array('cast5', 'cfb', 8), + array('cast5', 'ofb', 8), + array('cast5', 'ecb', 8), + array('cast5', 'cbc', 10), + array('cast5', 'cfb', 10), + array('cast5', 'ofb', 10), + array('cast5', 'ecb', 10), + array('cast5', 'cbc', 16), + array('cast5', 'cfb', 16), + array('cast5', 'ofb', 16), + array('cast5', 'ecb', 16), + array('rc4', 'stream', 5), + array('rc4', 'stream', 8), + array('rc4', 'stream', 16), + array('rc4', 'stream', 32), + array('rc4', 'stream', 64), + array('rc4', 'stream', 128), + array('rc4', 'stream', 256) + ); + $driver_index = array('mcrypt', 'openssl'); + + foreach ($portable as &$test) + { + // Add some randomness to the selected driver + $driver = mt_rand(0,1); + $params = array( + 'driver' => $driver_index[$driver], + 'cipher' => $test[0], + 'mode' => $test[1], + 'key' => openssl_random_pseudo_bytes($test[2]) + ); + + $this->encryption->initialize($params); + $ciphertext = $this->encryption->encrypt($message); + + $driver = (int) ! $driver; + $params['driver'] = $driver_index[$driver]; + + $this->encryption->initialize($params); + $this->assertEquals($message, $this->encryption->decrypt($ciphertext)); + } + } + + // -------------------------------------------------------------------- + + public function test_hkdf() + { + // Test vectors are described in RFC5869, Appendix A(1-3). + // Vectors 4-7 cover SHA-1, which we don't support. + // + // URL: https://tools.ietf.org/rfc/rfc5869.txt + // + // Our implementation doesn't split into hkdf_extract(), hkdf_expand() + // and therefore we can't test for the PRK value (it is included below + // just for consistency, hence why it's also commented out). + // + // As long as OKM is correct, then we're all fine though. + $vectors = array( + // Appendix A.1: Basic test case with SHA-256 + array( + 'digest' => 'sha256', + 'ikm' => "\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b", + 'salt' => "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c", + 'length' => 42, + 'info' => "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9", +// 'prk' => "\x07\x77\x09\x36\x2c\x2e\x32\xdf\x0d\xdc\x3f\x0d\xc4\x7b\xba\x63\x90\xb6\xc7\x3b\xb5\x0f\x9c\x31\x22\xec\x84\x4a\xd7\xc2\xb3\xe5", + 'okm' => "\x3c\xb2\x5f\x25\xfa\xac\xd5\x7a\x90\x43\x4f\x64\xd0\x36\x2f\x2a\x2d\x2d\x0a\x90\xcf\x1a\x5a\x4c\x5d\xb0\x2d\x56\xec\xc4\xc5\xbf\x34\x00\x72\x08\xd5\xb8\x87\x18\x58\x65" + ), + // Appendix A.2: Test with SHA-256 and longer inputs/outputs + array( + 'digest' => 'sha256', + 'ikm' => "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f", + 'salt' => "\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf", + 'length' => 82, + 'info' => "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff", +// 'prk' => "\x06\xa6\xb8\x8c\x58\x53\x36\x1a\x06\x10\x4c\x9c\xeb\x35\xb4\x5c\xef\x76\x00\x14\x90\x46\x71\x01\x4a\x19\x3f\x40\xc1\x5f\xc2\x44", + 'okm' => "\xb1\x1e\x39\x8d\xc8\x03\x27\xa1\xc8\xe7\xf7\x8c\x59\x6a\x49\x34\x4f\x01\x2e\xda\x2d\x4e\xfa\xd8\xa0\x50\xcc\x4c\x19\xaf\xa9\x7c\x59\x04\x5a\x99\xca\xc7\x82\x72\x71\xcb\x41\xc6\x5e\x59\x0e\x09\xda\x32\x75\x60\x0c\x2f\x09\xb8\x36\x77\x93\xa9\xac\xa3\xdb\x71\xcc\x30\xc5\x81\x79\xec\x3e\x87\xc1\x4c\x01\xd5\xc1\xf3\x43\x4f\x1d\x87", + ), + // Appendix A.3: Test with SHA-256 and zero-length salt/info + array( + 'digest' => 'sha256', + 'ikm' => "\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b", + 'salt' => "", + 'length' => 42, + 'info' => "", +// 'prk' => "\x19\xef\x24\xa3\x2c\x71\x7b\x16\x7f\x33\xa9\x1d\x6f\x64\x8b\xdf\x96\x59\x67\x76\xaf\xdb\x63\x77\xac\x43\x4c\x1c\x29\x3c\xcb\x04", + 'okm' => "\x8d\xa4\xe7\x75\xa5\x63\xc1\x8f\x71\x5f\x80\x2a\x06\x3c\x5a\x31\xb8\xa1\x1f\x5c\x5e\xe1\x87\x9e\xc3\x45\x4e\x5f\x3c\x73\x8d\x2d\x9d\x20\x13\x95\xfa\xa4\xb6\x1a\x96\xc8", + ) + ); + + foreach ($vectors as $test) + { + $this->assertEquals( + $test['okm'], + $this->encryption->hkdf( + $test['ikm'], + $test['digest'], + $test['salt'], + $test['length'], + $test['info'] + ) + ); + } + + // Test default length, it must match the digest size + $this->assertEquals(64, strlen($this->encryption->hkdf('foobar', 'sha512'))); + + // Test maximum length (RFC5869 says that it must be up to 255 times the digest size) + $this->assertEquals(12240, strlen($this->encryption->hkdf('foobar', 'sha384', NULL, 48 * 255))); + $this->assertFalse($this->encryption->hkdf('foobar', 'sha224', NULL, 28 * 255 + 1)); + } + +}
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