Merge pull request #10642 from owncloud/securityutils

Add some security utilities

3 files changed, 184 insertions, 0 deletions

diff --git a/tests/lib/security/crypto.php b/tests/lib/security/crypto.php
new file mode 100644
index 00000000000..0f89253839e
--- /dev/null
+++ b/tests/lib/security/crypto.php
@@ -0,0 +1,70 @@
+<?php
+/**
+ * Copyright (c) 2014 Lukas Reschke <lukas@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+use \OC\Security\Crypto;
+
+class CryptoTest extends \PHPUnit_Framework_TestCase {
+
+	public function defaultEncryptionProvider()
+	{
+		return array(
+			array('Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt.'),
+			array(''),
+			array('我看这本书。 我看這本書')
+		);
+	}
+
+	/** @var Crypto */
+	protected $crypto;
+
+	protected function setUp() {
+		$this->crypto = new Crypto(\OC::$server->getConfig(), \OC::$server->getSecureRandom());
+	}
+
+	/**
+	 * @dataProvider defaultEncryptionProvider
+	 */
+	function testDefaultEncrypt($stringToEncrypt) {
+		$ciphertext = $this->crypto->encrypt($stringToEncrypt);
+		$this->assertEquals($stringToEncrypt, $this->crypto->decrypt($ciphertext));
+	}
+
+	/**
+	 * @expectedException \Exception
+	 * @expectedExceptionMessage HMAC does not match.
+	 */
+	function testWrongPassword() {
+		$stringToEncrypt = 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt.';
+		$ciphertext = $this->crypto->encrypt($stringToEncrypt);
+		$this->crypto->decrypt($ciphertext, 'A wrong password!');
+	}
+
+	function testLaterDecryption() {
+		$stringToEncrypt = 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt.';
+		$encryptedString = '44a35023cca2e7a6125e06c29fc4b2ad9d8a33d0873a8b45b0de4ef9284f260c6c46bf25dc62120644c59b8bafe4281ddc47a70c35ae6c29ef7a63d79eefacc297e60b13042ac582733598d0a6b4de37311556bb5c480fd2633de4e6ebafa868c2d1e2d80a5d24f9660360dba4d6e0c8|lhrFgK0zd9U160Wo|a75e57ab701f9124e1113543fd1dc596f21e20d456a0d1e813d5a8aaec9adcb11213788e96598b67fe9486a9f0b99642c18296d0175db44b1ae426e4e91080ee';
+		$this->assertEquals($stringToEncrypt, $this->crypto->decrypt($encryptedString, 'ThisIsAVeryS3cur3P4ssw0rd'));
+	}
+
+	/**
+	 * @expectedException \Exception
+	 * @expectedExceptionMessage HMAC does not match.
+	 */
+	function testWrongIV() {
+		$encryptedString = '560f5436ba864b9f12f7f7ca6d41c327554a6f2c0a160a03316b202af07c65163274993f3a46e7547c07ba89304f00594a2f3bd99f83859097c58049c39d0d4ade10e0de914ff0604961e7c849d0271ed6c0b23f984ba16e7d033e3305fb0910e7b6a2a65c988d17dbee71d8f953684d|d2kdFUspVjC0o0sr|1a5feacf87eaa6869a6abdfba9a296e7bbad45b6ad89f7dce67cdc98e2da5dc4379cc672cc655e52bbf19599bf59482fbea13a73937697fa656bf10f3fc4f1aa';
+		$this->crypto->decrypt($encryptedString, 'ThisIsAVeryS3cur3P4ssw0rd');
+	}
+
+	/**
+	 * @expectedException \Exception
+	 * @expectedExceptionMessage Authenticated ciphertext could not be decoded.
+	 */
+	function testWrongParameters() {
+		$encryptedString = '1|2';
+		$this->crypto->decrypt($encryptedString, 'ThisIsAVeryS3cur3P4ssw0rd');
+	}
+}
diff --git a/tests/lib/security/securerandom.php b/tests/lib/security/securerandom.php
new file mode 100644
index 00000000000..2920077fa1d
--- /dev/null
+++ b/tests/lib/security/securerandom.php
@@ -0,0 +1,76 @@
+<?php
+/**
+ * Copyright (c) 2014 Lukas Reschke <lukas@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+use \OC\Security\SecureRandom;
+
+class SecureRandomTest extends \PHPUnit_Framework_TestCase {
+
+	public function stringGenerationProvider() {
+		return array(
+			array(0, 0),
+			array(1, 1),
+			array(128, 128),
+			array(256, 256),
+			array(1024, 1024),
+			array(2048, 2048),
+			array(64000, 64000),
+		);
+	}
+
+	public static function charCombinations() {
+		return array(
+			array('CHAR_LOWER', '[a-z]'),
+			array('CHAR_UPPER', '[A-Z]'),
+			array('CHAR_DIGITS', '[0-9]'),
+		);
+	}
+
+	/** @var SecureRandom */
+	protected $rng;
+
+	protected function setUp() {
+		$this->rng = new \OC\Security\SecureRandom();
+	}
+
+	/**
+	 * @dataProvider stringGenerationProvider
+	 */
+	function testGetLowStrengthGeneratorLength($length, $expectedLength) {
+		$generator = $this->rng->getLowStrengthGenerator();
+
+		$this->assertEquals($expectedLength, strlen($generator->generate($length)));
+	}
+
+	/**
+	 * @dataProvider stringGenerationProvider
+	 */
+	function testMediumLowStrengthGeneratorLength($length, $expectedLength) {
+		$generator = $this->rng->getMediumStrengthGenerator();
+
+		$this->assertEquals($expectedLength, strlen($generator->generate($length)));
+	}
+
+	/**
+	 * @expectedException \Exception
+	 * @expectedExceptionMessage Generator is not initialized
+	 */
+	function testUninitializedGenerate() {
+		$this->rng->generate(30);
+	}
+
+	/**
+	 * @dataProvider charCombinations
+	 */
+	public function testScheme($charName, $chars) {
+		$generator = $this->rng->getMediumStrengthGenerator();
+		$scheme = constant('OCP\Security\ISecureRandom::' . $charName);
+		$randomString = $generator->generate(100, $scheme);
+		$matchesRegex = preg_match('/^'.$chars.'+$/', $randomString);
+		$this->assertSame(1, $matchesRegex);
+	}
+}
diff --git a/tests/lib/security/stringutils.php b/tests/lib/security/stringutils.php
new file mode 100644
index 00000000000..039f3d3756a
--- /dev/null
+++ b/tests/lib/security/stringutils.php
@@ -0,0 +1,38 @@
+<?php
+/**
+ * Copyright (c) 2014 Lukas Reschke <lukas@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+use \OC\Security\StringUtils;
+
+class StringUtilsTest extends \PHPUnit_Framework_TestCase {
+
+	public function dataProvider()
+	{
+		return array(
+			array('Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt.', 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt.'),
+			array('', ''),
+			array('我看这本书。 我看這本書', '我看这本书。 我看這本書'),
+			array('GpKY9fSnWNJbES99zVGvA', 'GpKY9fSnWNJbES99zVGvA')
+		);
+	}
+
+	/**
+	 * @dataProvider dataProvider
+	 */
+	function testWrongEquals($string) {
+		$this->assertFalse(StringUtils::equals($string, 'A Completely Wrong String'));
+		$this->assertFalse(StringUtils::equals($string, null));
+	}
+
+	/**
+	 * @dataProvider dataProvider
+	 */
+	function testTrueEquals($string, $expected) {
+		$this->assertTrue(StringUtils::equals($string, $expected));
+	}
+
+}