|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* This file is part of Blitz PHP framework. |
|
5
|
|
|
* |
|
6
|
|
|
* (c) 2022 Dimitri Sitchet Tomkeu <[email protected]> |
|
7
|
|
|
* |
|
8
|
|
|
* For the full copyright and license information, please view |
|
9
|
|
|
* the LICENSE file that was distributed with this source code. |
|
10
|
|
|
*/ |
|
11
|
|
|
|
|
12
|
|
|
namespace BlitzPHP\Security\Encryption\Handlers; |
|
13
|
|
|
|
|
14
|
|
|
use BlitzPHP\Exceptions\EncryptionException; |
|
15
|
|
|
|
|
16
|
|
|
/** |
|
17
|
|
|
* Gestionnaire de chiffrement basé sur la librairie OpenSSL |
|
18
|
|
|
* |
|
19
|
|
|
* @credit <a href="http://www.codeigniter.com">CodeIgniter 4.4 - \CodeIgniter\Encryption\Handlers\OpenSSLHandler</a> |
|
20
|
|
|
*/ |
|
21
|
|
|
class OpenSSLHandler extends BaseHandler |
|
22
|
|
|
{ |
|
23
|
|
|
/** |
|
24
|
|
|
* HMAC digest à utiliser |
|
25
|
|
|
*/ |
|
26
|
|
|
protected string $digest = 'SHA512'; |
|
27
|
|
|
|
|
28
|
|
|
/** |
|
29
|
|
|
* Liste des algorithmes HMAC pris en charge |
|
30
|
|
|
* |
|
31
|
|
|
* @var array [name => digest size] |
|
32
|
|
|
*/ |
|
33
|
|
|
protected array $digestSize = [ |
|
34
|
|
|
'SHA224' => 28, |
|
35
|
|
|
'SHA256' => 32, |
|
36
|
|
|
'SHA384' => 48, |
|
37
|
|
|
'SHA512' => 64, |
|
38
|
|
|
]; |
|
39
|
|
|
|
|
40
|
|
|
/** |
|
41
|
|
|
* Chiffrement à utiliser |
|
42
|
|
|
*/ |
|
43
|
|
|
protected string $cipher = 'AES-256-CTR'; |
|
44
|
|
|
|
|
45
|
|
|
/** |
|
46
|
|
|
* Clé de démarrage |
|
47
|
|
|
*/ |
|
48
|
|
|
protected string $key = ''; |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* Indique si le texte chiffré doit être brut. S'il est défini sur false, il sera codé en base64. |
|
52
|
|
|
*/ |
|
53
|
|
|
protected bool $rawData = true; |
|
54
|
|
|
|
|
55
|
|
|
/** |
|
56
|
|
|
* Informations sur la clé de cryptage. |
|
57
|
|
|
* Ce paramètre est uniquement utilisé par OpenSSLHandler. |
|
58
|
|
|
*/ |
|
59
|
|
|
public string $encryptKeyInfo = ''; |
|
60
|
|
|
|
|
61
|
|
|
/** |
|
62
|
|
|
* Informations sur la clé d'authentification. |
|
63
|
|
|
* Ce paramètre est uniquement utilisé par OpenSSLHandler. |
|
64
|
|
|
*/ |
|
65
|
|
|
public string $authKeyInfo = ''; |
|
66
|
|
|
|
|
67
|
|
|
/** |
|
68
|
|
|
* {@inheritDoc} |
|
69
|
|
|
*/ |
|
70
|
|
|
public function encrypt(string $data, null|array|string $params = null): string |
|
71
|
|
|
{ |
|
72
|
|
|
// Autoriser le remplacement de clé |
|
73
|
|
|
if ($params) { |
|
74
|
|
|
$this->key = is_array($params) && isset($params['key']) ? $params['key'] : $params; |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
|
|
if (empty($this->key)) { |
|
78
|
|
|
throw EncryptionException::needsStarterKey(); |
|
79
|
|
|
} |
|
80
|
|
|
|
|
81
|
|
|
// derive a secret key |
|
82
|
|
|
$encryptKey = \hash_hkdf($this->digest, $this->key, 0, $this->encryptKeyInfo); |
|
83
|
|
|
|
|
84
|
|
|
// cryptage de base |
|
85
|
|
|
$iv = ($ivSize = \openssl_cipher_iv_length($this->cipher)) ? \openssl_random_pseudo_bytes($ivSize) : null; |
|
86
|
|
|
|
|
87
|
|
|
$data = \openssl_encrypt($data, $this->cipher, $encryptKey, OPENSSL_RAW_DATA, $iv); |
|
|
|
|
|
|
88
|
|
|
|
|
89
|
|
|
if ($data === false) { |
|
90
|
|
|
throw EncryptionException::encryptionFailed(); |
|
91
|
|
|
} |
|
92
|
|
|
|
|
93
|
|
|
$result = $this->rawData ? $iv . $data : base64_encode($iv . $data); |
|
94
|
|
|
|
|
95
|
|
|
// dériver une clé secrète |
|
96
|
|
|
$authKey = \hash_hkdf($this->digest, $this->key, 0, $this->authKeyInfo); |
|
97
|
|
|
|
|
98
|
|
|
$hmacKey = \hash_hmac($this->digest, $result, $authKey, $this->rawData); |
|
99
|
|
|
|
|
100
|
|
|
return $hmacKey . $result; |
|
101
|
|
|
} |
|
102
|
|
|
|
|
103
|
|
|
/** |
|
104
|
|
|
* {@inheritDoc} |
|
105
|
|
|
*/ |
|
106
|
|
|
public function decrypt(string $data, null|array|string $params = null): string |
|
107
|
|
|
{ |
|
108
|
|
|
// Autoriser le remplacement de clé |
|
109
|
|
|
if ($params) { |
|
110
|
|
|
$this->key = is_array($params) && isset($params['key']) ? $params['key'] : $params; |
|
111
|
|
|
} |
|
112
|
|
|
|
|
113
|
|
|
if (empty($this->key)) { |
|
114
|
|
|
throw EncryptionException::needsStarterKey(); |
|
115
|
|
|
} |
|
116
|
|
|
|
|
117
|
|
|
// dériver une clé secrète |
|
118
|
|
|
$authKey = \hash_hkdf($this->digest, $this->key, 0, $this->authKeyInfo); |
|
119
|
|
|
|
|
120
|
|
|
$hmacLength = $this->rawData |
|
121
|
|
|
? $this->digestSize[$this->digest] |
|
122
|
|
|
: $this->digestSize[$this->digest] * 2; |
|
123
|
|
|
|
|
124
|
|
|
$hmacKey = self::substr($data, 0, $hmacLength); |
|
125
|
|
|
$data = self::substr($data, $hmacLength); |
|
126
|
|
|
$hmacCalc = \hash_hmac($this->digest, $data, $authKey, $this->rawData); |
|
127
|
|
|
|
|
128
|
|
|
if (! hash_equals($hmacKey, $hmacCalc)) { |
|
129
|
|
|
throw EncryptionException::authenticationFailed(); |
|
130
|
|
|
} |
|
131
|
|
|
|
|
132
|
|
|
$data = $this->rawData ? $data : base64_decode($data, true); |
|
133
|
|
|
|
|
134
|
|
|
if ($ivSize = \openssl_cipher_iv_length($this->cipher)) { |
|
135
|
|
|
$iv = self::substr($data, 0, $ivSize); |
|
136
|
|
|
$data = self::substr($data, $ivSize); |
|
137
|
|
|
} else { |
|
138
|
|
|
$iv = null; |
|
139
|
|
|
} |
|
140
|
|
|
|
|
141
|
|
|
// dériver une clé secrète |
|
142
|
|
|
$encryptKey = \hash_hkdf($this->digest, $this->key, 0, $this->encryptKeyInfo); |
|
143
|
|
|
|
|
144
|
|
|
return \openssl_decrypt($data, $this->cipher, $encryptKey, OPENSSL_RAW_DATA, $iv); |
|
|
|
|
|
|
145
|
|
|
} |
|
146
|
|
|
} |
|
147
|
|
|
|
blitz-php /
framework
Loading history...