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 [
            ['md5', '', 'd41d8cd98f00b204e9800998ecf8427e'],
            ['md5', 'The quick brown fox jumps over the lazy dog', '9e107d9d372bb6826bd81d3542a419d6'],
            ['md5', 'The quick brown fox jumps over the lazy dog.', 'e4d909c290d0fb1ca068ffaddf22cbd0'],
            ['sha1', 'The quick brown fox jumps over the lazy dog', '2fd4e1c67a2d28fced849ee1bb76e7391b93eb12'],
            ['sha1', 'The quick brown fox jumps over the lazy dog.', '408d94384216f890ff7a0c3528e8bed1e0b01621'],
            [
                'sha256',
                '',
                'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'
            ],
            [
                'sha256',
                'The quick brown fox jumps over the lazy dog',
                'd7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592',
            ],
            [
                'sha256',
                'The quick brown fox jumps over the lazy dog.',
                'ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c',
            ],
            [
                'sha384',
                '',
                '38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da274edebfe76f65fbd51ad2f14898b95b'
            ],
            [
                'sha384',
                'The quick brown fox jumps over the lazy dog',
                'ca737f1014a48f4c0b6dd43cb177b0afd9e5169367544c494011e3317dbf9a509cb1e5dc1e85a941bbee3d7f2afbc9b1',
            ],
            [
                'sha512',
                '',
                'cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e'
            ],
            [
                'sha512',
                'The quick brown fox jumps over the lazy dog',
                '07e547d9586f6a73f73fbac0435ed76951218fb7d0c8d788a309d785436bbb642e93a252a954f23912547d1e8a3b5ed6e1bfd7097821233fa0538f3db854fee6',
            ],
            [
                'sha512',
                'The quick brown fox jumps over the lazy dog.',
                '91ea1245f20d46ae9a037a989f54f1f790f0a47607eeb8a14d12890cea77a1bbc6c7ed9cf205e67b7f2b8fd4c7dfd3a7a8617e45f3c463d481c7e586c39ac1ed',
            ],
            // from http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA512_224.pdf
            [
                'sha512/224',
                'abc',
                '4634270f707b6a54daae7530460842e20e37ed265ceee9a43e8924aa'
            ],
            [
                'sha512/224',
                'abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu',
                '23fec5bb94d60b23308192640b0c453335d664734fe40e7268674af9'
            ],
            // from http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA512_256.pdf
            [
                'sha512/256',
                'abc',
                '53048e2681941ef99b2e29b76b4c7dabe4c2d0c634fc6d46e0e2f13107e7af23'
            ],
            [
                'sha512/256',
                'abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu',
                '3928e184fb8690f840da3988121d31be65cb9d3ef83ee6146feac861e19b563a'
            ],
            // from http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA224.pdf
            [
                'sha224',
                'abc',
                '23097D223405D8228642A477BDA255B32AADBCE4BDA0B3F7E36C9DA7'
            ],
            [
                'sha224',
                'abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq',
                '75388B16512776CC5DBA5DA1FD890150B0C6455CB4F58B1952522525'
            ],
        ];
    }

    /**
     * @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 [
            ['md5', '', '', '74e6f7298a9c2d168935f58c001bad88'],
            ['md5', 'key', 'The quick brown fox jumps over the lazy dog', '80070713463e7749b90c2dc24911e275'],

            // from https://tools.ietf.org/rfc/rfc4231.txt
            // test case 1
            [
                'sha224',
                str_repeat("\x0b", 20),
                'Hi There',
                '896fb1128abbdf196832107cd49df33f47b4b1169912ba4f53684b22',
            ],
            // test case 2
            [
                'sha224',
                'Jefe',
                'what do ya want for nothing?',
                'a30e01098bc6dbbf45690f3a7e9e6d0f8bbea2a39e6148008fd05e44',
            ],
            // test case 3
            [
                'sha224',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                pack('H*', 'dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd'),
                '7fb3cb3588c6c1f6ffa9694d7d6ad2649365b0c1f65d69d1ec8333ea',
            ],
            // test case 4
            [
                'sha224',
                pack('H*', '0102030405060708090a0b0c0d0e0f10111213141516171819'),
                pack('H*', 'cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd'),
                '6c11506874013cac6a2abc1bb382627cec6a90d86efc012de7afec5a',
            ],
            // skip test case 5; truncation is only supported to 96 bits (eg. sha1-96) and that's already unit tested
            // test case 6
            [
                'sha224',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                'Test Using Larger Than Block-Size Key - Hash Key First',
                '95e9a0db962095adaebe9b2d6f0dbce2d499f112f2d2b7273fa6870e',
            ],
            // test case 7
            [
                'sha224',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                'This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.',
                '3a854166ac5d9f023f54d517d0b39dbd946770db9c2b95c9f6f565d1'
            ],

            // test case 1
            [
                'sha256',
                str_repeat("\x0b", 20),
                'Hi There',
                'b0344c61d8db38535ca8afceaf0bf12b881dc200c9833da726e9376c2e32cff7',
            ],
            // test case 2
            [
                'sha256',
                'Jefe',
                'what do ya want for nothing?',
                '5bdcc146bf60754e6a042426089575c75a003f089d2739839dec58b964ec3843',
            ],
            // test case 3
            [
                'sha256',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                pack('H*', 'dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd'),
                '773ea91e36800e46854db8ebd09181a72959098b3ef8c122d9635514ced565fe',
            ],
            // test case 4
            [
                'sha256',
                pack('H*', '0102030405060708090a0b0c0d0e0f10111213141516171819'),
                pack('H*', 'cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd'),
                '82558a389a443c0ea4cc819899f2083a85f0faa3e578f8077a2e3ff46729665b',
            ],
            // skip test case 5; truncation is only supported to 96 bits (eg. sha1-96) and that's already unit tested
            // test case 6
            [
                'sha256',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                'Test Using Larger Than Block-Size Key - Hash Key First',
                '60e431591ee0b67f0d8a26aacbf5b77f8e0bc6213728c5140546040f0ee37f54',
            ],
            // test case 7
            [
                'sha256',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                'This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.',
                '9b09ffa71b942fcb27635fbcd5b0e944bfdc63644f0713938a7f51535c3a35e2'
            ],

            // test case 1
            [
                'sha384',
                str_repeat("\x0b", 20),
                'Hi There',
                'afd03944d84895626b0825f4ab46907f15f9dadbe4101ec682aa034c7cebc59cfaea9ea9076ede7f4af152e8b2fa9cb6',
            ],
            // test case 2
            [
                'sha384',
                'Jefe',
                'what do ya want for nothing?',
                'af45d2e376484031617f78d2b58a6b1b9c7ef464f5a01b47e42ec3736322445e8e2240ca5e69e2c78b3239ecfab21649',
            ],
            // test case 3
            [
                'sha384',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                pack('H*', 'dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd'),
                '88062608d3e6ad8a0aa2ace014c8a86f0aa635d947ac9febe83ef4e55966144b2a5ab39dc13814b94e3ab6e101a34f27',
            ],
            // test case 4
            [
                'sha384',
                pack('H*', '0102030405060708090a0b0c0d0e0f10111213141516171819'),
                pack('H*', 'cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd'),
                '3e8a69b7783c25851933ab6290af6ca77a9981480850009cc5577c6e1f573b4e6801dd23c4a7d679ccf8a386c674cffb',
            ],
            // skip test case 5; truncation is only supported to 96 bits (eg. sha1-96) and that's already unit tested
            // test case 6
            [
                'sha384',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                'Test Using Larger Than Block-Size Key - Hash Key First',
                '4ece084485813e9088d2c63a041bc5b44f9ef1012a2b588f3cd11f05033ac4c60c2ef6ab4030fe8296248df163f44952',
            ],
            // test case 7
            [
                'sha384',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                'This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.',
                '6617178e941f020d351e2f254e8fd32c602420feb0b8fb9adccebb82461e99c5a678cc31e799176d3860e6110c46523e'
            ],

            // test case 1
            [
                'sha512',
                str_repeat("\x0b", 20),
                'Hi There',
                '87aa7cdea5ef619d4ff0b4241a1d6cb02379f4e2ce4ec2787ad0b30545e17cdedaa833b7d6b8a702038b274eaea3f4e4be9d914eeb61f1702e696c203a126854',
            ],
            // test case 2
            [
                'sha512',
                'Jefe',
                'what do ya want for nothing?',
                '164b7a7bfcf819e2e395fbe73b56e0a387bd64222e831fd610270cd7ea2505549758bf75c05a994a6d034f65f8f0e6fdcaeab1a34d4a6b4b636e070a38bce737',
            ],
            // test case 3
            [
                'sha512',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                pack('H*', 'dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd'),
                'fa73b0089d56a284efb0f0756c890be9b1b5dbdd8ee81a3655f83e33b2279d39bf3e848279a722c806b485a47e67c807b946a337bee8942674278859e13292fb',
            ],
            // test case 4
            [
                'sha512',
                pack('H*', '0102030405060708090a0b0c0d0e0f10111213141516171819'),
                pack('H*', 'cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd'),
                'b0ba465637458c6990e5a8c5f61d4af7e576d97ff94b872de76f8050361ee3dba91ca5c11aa25eb4d679275cc5788063a5f19741120c4f2de2adebeb10a298dd',
            ],
            // skip test case 5; truncation is only supported to 96 bits (eg. sha1-96) and that's already unit tested
            // test case 6
            [
                'sha512',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                'Test Using Larger Than Block-Size Key - Hash Key First',
                '80b24263c7c1a3ebb71493c1dd7be8b49b46d1f41b4aeec1121b013783f8f3526b56d037e05f2598bd0fd2215d6a1e5295e64f73f63f0aec8b915a985d786598',
            ],
            // test case 7
            [
                'sha512',
                pack('H*', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
                'This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.',
                'e37b6a775dc87dbaa4dfa9f96e5e3ffddebd71f8867289865df5a32d20cdc944b6022cac3c4982b10d5eeb55c3e4de15134676fb6de0446065c97440fa8c6a58'
            ],
        ];
    }

    /**
     * @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');
    }

    /**
     * @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->getLengthInBytes(), $length);
    }

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