|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* Class CryptoBox |
|
4
|
|
|
* |
|
5
|
|
|
* @filesource CryptoBox.php |
|
6
|
|
|
* @created 25.01.2018 |
|
7
|
|
|
* @package chillerlan\Traits\Crypto |
|
8
|
|
|
* @author Smiley <[email protected]> |
|
9
|
|
|
* @copyright 2018 Smiley |
|
10
|
|
|
* @license MIT |
|
11
|
|
|
*/ |
|
12
|
|
|
|
|
13
|
|
|
namespace chillerlan\Traits\Crypto; |
|
14
|
|
|
|
|
15
|
|
|
use chillerlan\Traits\{ |
|
16
|
|
|
Container, ContainerInterface |
|
17
|
|
|
}; |
|
18
|
|
|
|
|
19
|
|
|
/** |
|
20
|
|
|
* @link https://paragonie.com/book/pecl-libsodium/read/00-intro.md |
|
21
|
|
|
* @link https://paragonie.com/book/pecl-libsodium/read/01-quick-start.md |
|
22
|
|
|
*/ |
|
23
|
|
|
abstract class CryptoBox implements CryptoBoxInterface, ContainerInterface{ |
|
24
|
|
|
use MemzeroDestructorTrait, Container{ |
|
25
|
|
|
__construct as containerConstruct; |
|
26
|
|
|
} |
|
27
|
|
|
|
|
28
|
|
|
/** |
|
29
|
|
|
* @var \chillerlan\Traits\Crypto\CryptoKeyInterface |
|
30
|
|
|
*/ |
|
31
|
|
|
protected $keypair; |
|
32
|
|
|
|
|
33
|
|
|
/** |
|
34
|
|
|
* @var string |
|
35
|
|
|
*/ |
|
36
|
|
|
protected $box; |
|
37
|
|
|
|
|
38
|
|
|
/** |
|
39
|
|
|
* @var string |
|
40
|
|
|
*/ |
|
41
|
|
|
protected $nonce; |
|
42
|
|
|
|
|
43
|
|
|
/** |
|
44
|
|
|
* @var string |
|
45
|
|
|
*/ |
|
46
|
|
|
protected $message; |
|
47
|
|
|
|
|
48
|
|
|
/** @noinspection PhpMissingParentConstructorInspection */ |
|
49
|
|
|
/** |
|
50
|
|
|
* CryptoBox constructor. |
|
51
|
|
|
* |
|
52
|
|
|
* @param array|null $properties |
|
53
|
|
|
* |
|
54
|
|
|
* @throws \chillerlan\Traits\Crypto\CryptoException |
|
55
|
|
|
*/ |
|
56
|
|
|
public function __construct(array $properties = null){ |
|
57
|
|
|
|
|
58
|
|
|
if(!extension_loaded('sodium') || !function_exists('sodium_memzero')){ |
|
59
|
|
|
throw new CryptoException('sodium extension (PHP 7.2+) required!'); // @codeCoverageIgnore |
|
60
|
|
|
} |
|
61
|
|
|
|
|
62
|
|
|
$this->containerConstruct($properties); |
|
|
|
|
|
|
63
|
|
|
} |
|
64
|
|
|
|
|
65
|
|
|
/** |
|
66
|
|
|
* @param int $secretLength |
|
67
|
|
|
* @param int $PublicLength |
|
68
|
|
|
* |
|
69
|
|
|
* @return void |
|
70
|
|
|
* @throws \chillerlan\Traits\Crypto\CryptoException |
|
71
|
|
|
*/ |
|
72
|
|
|
protected function checkKeypair(int $secretLength = null, int $PublicLength = null){ |
|
73
|
|
|
|
|
74
|
|
|
if($secretLength !== null){ |
|
75
|
|
|
if(!$this->keypair->secret || strlen($this->keypair->secret) !== $secretLength){ |
|
|
|
|
|
|
76
|
|
|
throw new CryptoException('invalid secret key'); |
|
77
|
|
|
} |
|
78
|
|
|
} |
|
79
|
|
|
|
|
80
|
|
|
if($PublicLength !== null){ |
|
81
|
|
|
if(!$this->keypair->public || strlen($this->keypair->public) !== $PublicLength){ |
|
|
|
|
|
|
82
|
|
|
throw new CryptoException('invalid public key'); |
|
83
|
|
|
} |
|
84
|
|
|
} |
|
85
|
|
|
|
|
86
|
|
|
} |
|
87
|
|
|
|
|
88
|
|
|
protected function checkMessage(string $message):string { |
|
89
|
|
|
$message = trim($message); |
|
90
|
|
|
|
|
91
|
|
|
if(strlen($message) < 1){ |
|
92
|
|
|
throw new CryptoException('invalid message'); |
|
93
|
|
|
} |
|
94
|
|
|
|
|
95
|
|
|
// @todo: padding? |
|
96
|
|
|
return $message; |
|
97
|
|
|
} |
|
98
|
|
|
|
|
99
|
|
|
} |
|
100
|
|
|
|
This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.
This is most likely a typographical error or the method has been renamed.