phpseclib/tests/Unit/Crypt/HashTest.php

<?php
/**
 * @author    Andreas Fischer <bantu@phpbb.com>
 * @copyright 2012 Andreas Fischer
 * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
 */

use phpseclib\Crypt\Hash;

class Unit_Crypt_HashTest extends PhpseclibTestCase
{
    protected function assertHashesTo($hash, $message, $expected)
    {
        $hash = new Hash($hash);

        $this->assertSame(
            strtolower($expected),
            bin2hex($hash->hash($message)),
            sprintf("Failed asserting that '%s' hashes to '%s'.", $message, $expected)
        );
    }

    protected function assertHMACsTo($hash, $key, $message, $expected)
    {
        $hash = new Hash($hash);
        $hash->setKey($key);

        $this->assertSame(
            strtolower($expected),
            bin2hex($hash->hash($message)),
            sprintf(
                "Failed asserting that '%s' HMACs to '%s' with key '%s'.",
                $message,
                $expected,
                $key
            )
        );
    }

    public static function hashData()
    {
        return array(
            array('md5', '', 'd41d8cd98f00b204e9800998ecf8427e'),
            array('md5', 'The quick brown fox jumps over the lazy dog', '9e107d9d372bb6826bd81d3542a419d6'),
            array('md5', 'The quick brown fox jumps over the lazy dog.', 'e4d909c290d0fb1ca068ffaddf22cbd0'),
            array('sha1', 'The quick brown fox jumps over the lazy dog', '2fd4e1c67a2d28fced849ee1bb76e7391b93eb12'),
            array('sha1', 'The quick brown fox jumps over the lazy dog.', '408d94384216f890ff7a0c3528e8bed1e0b01621'),
            array(
                'sha256',
                '',
                'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'
            ),
            array(
                'sha256',
                'The quick brown fox jumps over the lazy dog',
                'd7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592',
            ),
            array(
                'sha256',
                'The quick brown fox jumps over the lazy dog.',
                'ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c',
            ),
            array(
                'sha384',
                '',
                '38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da274edebfe76f65fbd51ad2f14898b95b'
            ),
            array(
                'sha384',
                'The quick brown fox jumps over the lazy dog',
                'ca737f1014a48f4c0b6dd43cb177b0afd9e5169367544c494011e3317dbf9a509cb1e5dc1e85a941bbee3d7f2afbc9b1',
            ),
            array(
                'sha512',
                '',
                'cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e'
            ),
            array(
                'sha512',
                'The quick brown fox jumps over the lazy dog',
                '07e547d9586f6a73f73fbac0435ed76951218fb7d0c8d788a309d785436bbb642e93a252a954f23912547d1e8a3b5ed6e1bfd7097821233fa0538f3db854fee6',
            ),
            array(
                'sha512',
                'The quick brown fox jumps over the lazy dog.',
                '91ea1245f20d46ae9a037a989f54f1f790f0a47607eeb8a14d12890cea77a1bbc6c7ed9cf205e67b7f2b8fd4c7dfd3a7a8617e45f3c463d481c7e586c39ac1ed',
            ),
            array(
                'whirlpool',
                'The quick brown fox jumps over the lazy dog.',
                '87a7ff096082e3ffeb86db10feb91c5af36c2c71bc426fe310ce662e0338223e217def0eab0b02b80eecf875657802bc5965e48f5c0a05467756f0d3f396faba'
            ),
            array(
                'whirlpool',
                'The quick brown fox jumps over the lazy dog.',
                '87a7ff096082e3ffeb86db10feb91c5af36c2c71bc426fe310ce662e0338223e217def0eab0b02b80eecf875657802bc5965e48f5c0a05467756f0d3f396faba'
            ),
        );
    }

    /**
     * @dataProvider hmacData()
     */
    public function testHMAC($hash, $key, $message, $result)
    {
        $this->assertHMACsTo($hash, $key, $message, $result);
    }

    /**
     * @dataProvider hmacData()
     */
    public function testHMAC96($hash, $key, $message, $result)
    {
        $this->assertHMACsTo($hash . '-96', $key, $message, substr($result, 0, 24));
    }

    public static function hmacData()
    {
        return array(
            array('md5', '', '', '74e6f7298a9c2d168935f58c001bad88'),
            array('md5', 'key', 'The quick brown fox jumps over the lazy dog', '80070713463e7749b90c2dc24911e275'),
            // RFC 4231
            // Test Case 1
            array(
                'sha256',
                pack('H*', '0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b'),
                pack('H*', '4869205468657265'),
                'b0344c61d8db38535ca8afceaf0bf12b881dc200c9833da726e9376c2e32cff7',
            ),
            // Test Case 2
            array(
                'sha256',
                pack('H*', '4a656665'),
                pack('H*', '7768617420646f2079612077616e7420666f72206e6f7468696e673f'),
                '5bdcc146bf60754e6a042426089575c75a003f089d2739839dec58b964ec3843',
            ),
            // Test Case 3
            array(
                'sha256',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                pack('H*', 'dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd'),
                '773ea91e36800e46854db8ebd09181a72959098b3ef8c122d9635514ced565fe',
            ),
            // Test Case 4
            array(
                'sha256',
                pack('H*', '0102030405060708090a0b0c0d0e0f10111213141516171819'),
                pack('H*', 'cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd'),
                '82558a389a443c0ea4cc819899f2083a85f0faa3e578f8077a2e3ff46729665b',
            ),
            // RFC 4231
            // Test Case 1
            array(
                'sha512',
                pack('H*', '0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b'),
                pack('H*', '4869205468657265'),
                '87aa7cdea5ef619d4ff0b4241a1d6cb02379f4e2ce4ec2787ad0b30545e17cdedaa833b7d6b8a702038b274eaea3f4e4be9d914eeb61f1702e696c203a126854',
            ),
            // Test Case 2
            array(
                'sha512',
                pack('H*', '4a656665'),
                pack('H*', '7768617420646f2079612077616e7420666f72206e6f7468696e673f'),
                '164b7a7bfcf819e2e395fbe73b56e0a387bd64222e831fd610270cd7ea2505549758bf75c05a994a6d034f65f8f0e6fdcaeab1a34d4a6b4b636e070a38bce737',
            ),
            // Test Case 3
            array(
                'sha512',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                pack('H*', 'dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd'),
                'fa73b0089d56a284efb0f0756c890be9b1b5dbdd8ee81a3655f83e33b2279d39bf3e848279a722c806b485a47e67c807b946a337bee8942674278859e13292fb',
            ),
            // Test Case 4
            array(
                'sha512',
                pack('H*', '0102030405060708090a0b0c0d0e0f10111213141516171819'),
                pack('H*', 'cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd'),
                'b0ba465637458c6990e5a8c5f61d4af7e576d97ff94b872de76f8050361ee3dba91ca5c11aa25eb4d679275cc5788063a5f19741120c4f2de2adebeb10a298dd',
            ),
            array(
                'whirlpool',
                'abcd',
                'The quick brown fox jumps over the lazy dog',
                'e71aabb2588d789292fa6fef00b35cc269ec3ea912b1c1cd7127daf95f004a5df5392ee563d322bac7e19d9eab161932fe9c257d63e0d09eca0d91ab4010125e',
            ),
        );
    }

    /**
     * @dataProvider hashData()
     */
    public function testHash($hash, $message, $result)
    {
        $this->assertHashesTo($hash, $message, $result);
    }

    /**
     * @dataProvider hashData()
     */
    public function testHash96($hash, $message, $result)
    {
        $this->assertHashesTo($hash . '-96', $message, substr($result, 0, 24));
    }

    public function testConstructorDefault()
    {
        $hash = new Hash();
        $this->assertSame($hash->getHash(), 'sha256');
    }

    /**
     * @expectedException \phpseclib\Exception\UnsupportedAlgorithmException
     */
    public function testConstructorArgumentInvalid()
    {
        new Hash('abcdefghijklmnopqrst');
    }

    public function testConstructorArgumentValid()
    {
        $hash = new Hash('whirlpool');
        $this->assertSame($hash->getHash(), 'whirlpool');
    }

    /**
     * @expectedException \phpseclib\Exception\UnsupportedAlgorithmException
     */
    public function testSetHashInvalid()
    {
        $hash = new Hash('md5');
        $hash->setHash('abcdefghijklmnopqrst-96');
    }

    public function testSetHashValid()
    {
        $hash = new Hash('md5');
        $this->assertSame($hash->getHash(), 'md5');
        $hash->setHash('sha1');
        $this->assertSame($hash->getHash(), 'sha1');
    }

    /**
     * @dataProvider lengths
     */
    public function testGetLengthKnown($algorithm, $length)
    {
        $hash = new Hash($algorithm);
        $this->assertSame($hash->getLength(), $length);
    }

    public function lengths()
    {
        return array(
            // known
            array('md5-96', 12),
            array('md5', 16),
            array('sha1', 20),
            array('sha256', 32),
            array('sha384', 48),
            array('sha512', 64),
            // unknown
            array('whirlpool', 64),
        );
    }
}