defender-security / vendor / web-auth / cose-lib / src / Hash.php

Hash.php in Defender Security – Malware Scanner, Login Security & Firewall 5.4.0, at vendor/web-auth/cose-lib/src/Hash.php

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1	<?php
2
3	declare(strict_types=1);
4
5	/*
6	* The MIT License (MIT)
7	*
8	* Copyright (c) 2014-2021 Spomky-Labs
9	*
10	* This software may be modified and distributed under the terms
11	* of the MIT license. See the LICENSE file for details.
12	*/
13
14	namespace Cose;
15
16	/**
17	* @internal
18	*/
19	class Hash
20	{
21	/**
22	* Hash Parameter.
23	*
24	* @var string
25	*/
26	private $hash;
27
28	/**
29	* DER encoding T.
30	*
31	* @var string
32	*/
33	private $t;
34
35	/**
36	* Hash Length.
37	*
38	* @var int
39	*/
40	private $length;
41
42	private function __construct(string $hash, int $length, string $t)
43	{
44	$this->hash = $hash;
45	$this->length = $length;
46	$this->t = $t;
47	}
48
49	/**
50	* @return Hash
51	*/
52	public static function sha1(): self
53	{
54	return new self('sha1', 20, "\x30\x21\x30\x09\x06\x05\x2b\x0e\x03\x02\x1a\x05\x00\x04\x14");
55	}
56
57	/**
58	* @return Hash
59	*/
60	public static function sha256(): self
61	{
62	return new self('sha256', 32, "\x30\x31\x30\x0d\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01\x05\x00\x04\x20");
63	}
64
65	/**
66	* @return Hash
67	*/
68	public static function sha384(): self
69	{
70	return new self('sha384', 48, "\x30\x41\x30\x0d\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x02\x05\x00\x04\x30");
71	}
72
73	/**
74	* @return Hash
75	*/
76	public static function sha512(): self
77	{
78	return new self('sha512', 64, "\x30\x51\x30\x0d\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x03\x05\x00\x04\x40");
79	}
80
81	public function getLength(): int
82	{
83	return $this->length;
84	}
85
86	/**
87	* Compute the HMAC.
88	*/
89	public function hash(string $text): string
90	{
91	return hash($this->hash, $text, true);
92	}
93
94	public function name(): string
95	{
96	return $this->hash;
97	}
98
99	public function t(): string
100	{
101	return $this->t;
102	}
103	}
104