|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* Public/private key encryption. |
|
4
|
|
|
* |
|
5
|
|
|
* @author Alex Bilbie <[email protected]> |
|
6
|
|
|
* @copyright Copyright (c) Alex Bilbie |
|
7
|
|
|
* @license http://mit-license.org/ |
|
8
|
|
|
* |
|
9
|
|
|
* @link https://github.com/thephpleague/oauth2-server |
|
10
|
|
|
*/ |
|
11
|
|
|
|
|
12
|
|
|
namespace League\OAuth2\Server; |
|
13
|
|
|
|
|
14
|
|
|
use Defuse\Crypto\Crypto; |
|
15
|
|
|
|
|
16
|
|
|
trait CryptTrait |
|
17
|
|
|
{ |
|
18
|
|
|
/** |
|
19
|
|
|
* @var CryptKey |
|
20
|
|
|
*/ |
|
21
|
|
|
protected $privateKey; |
|
22
|
|
|
|
|
23
|
|
|
/** |
|
24
|
|
|
* @var CryptKey |
|
25
|
|
|
*/ |
|
26
|
|
|
protected $publicKey; |
|
27
|
|
|
|
|
28
|
|
|
/** |
|
29
|
|
|
* @var string |
|
30
|
|
|
*/ |
|
31
|
|
|
protected $encryptionKey; |
|
32
|
|
|
|
|
33
|
|
|
/** |
|
34
|
|
|
* Set path to private key. |
|
35
|
|
|
* |
|
36
|
|
|
* @param CryptKey $privateKey |
|
37
|
|
|
*/ |
|
38
|
|
|
public function setPrivateKey(CryptKey $privateKey) |
|
39
|
|
|
{ |
|
40
|
|
|
$this->privateKey = $privateKey; |
|
41
|
|
|
} |
|
42
|
|
|
|
|
43
|
|
|
/** |
|
44
|
|
|
* Set path to public key. |
|
45
|
|
|
* |
|
46
|
|
|
* @param CryptKey $publicKey |
|
47
|
|
|
*/ |
|
48
|
|
|
public function setPublicKey(CryptKey $publicKey) |
|
49
|
|
|
{ |
|
50
|
|
|
$this->publicKey = $publicKey; |
|
51
|
|
|
} |
|
52
|
|
|
|
|
53
|
|
|
/** |
|
54
|
|
|
* Encrypt data with a private key. |
|
55
|
|
|
* |
|
56
|
|
|
* @param string $unencryptedData |
|
57
|
|
|
* |
|
58
|
|
|
* @throws \LogicException |
|
59
|
|
|
* |
|
60
|
|
|
* @return string |
|
61
|
|
|
*/ |
|
62
|
|
|
protected function encrypt($unencryptedData) |
|
63
|
|
|
{ |
|
64
|
|
|
if ($this->encryptionKey !== null) { |
|
65
|
|
|
return Crypto::encryptWithPassword($unencryptedData, $this->encryptionKey); |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
$privateKey = openssl_pkey_get_private($this->privateKey->getKeyPath(), $this->privateKey->getPassPhrase()); |
|
69
|
|
|
$privateKeyDetails = @openssl_pkey_get_details($privateKey); |
|
70
|
|
|
if ($privateKeyDetails === null) { |
|
71
|
|
|
throw new \LogicException( |
|
72
|
|
|
sprintf('Could not get details of private key: %s', $this->privateKey->getKeyPath()) |
|
73
|
|
|
); |
|
74
|
|
|
} |
|
75
|
|
|
|
|
76
|
|
|
$chunkSize = ceil($privateKeyDetails['bits'] / 8) - 11; |
|
77
|
|
|
$output = ''; |
|
78
|
|
|
|
|
79
|
|
|
while ($unencryptedData) { |
|
80
|
|
|
$chunk = substr($unencryptedData, 0, $chunkSize); |
|
81
|
|
|
$unencryptedData = substr($unencryptedData, $chunkSize); |
|
82
|
|
|
if (openssl_private_encrypt($chunk, $encrypted, $privateKey) === false) { |
|
83
|
|
|
// @codeCoverageIgnoreStart |
|
84
|
|
|
throw new \LogicException('Failed to encrypt data'); |
|
85
|
|
|
// @codeCoverageIgnoreEnd |
|
86
|
|
|
} |
|
87
|
|
|
$output .= $encrypted; |
|
88
|
|
|
} |
|
89
|
|
|
openssl_pkey_free($privateKey); |
|
90
|
|
|
|
|
91
|
|
|
return base64_encode($output); |
|
92
|
|
|
} |
|
93
|
|
|
|
|
94
|
|
|
/** |
|
95
|
|
|
* Decrypt data with a public key. |
|
96
|
|
|
* |
|
97
|
|
|
* @param string $encryptedData |
|
98
|
|
|
* |
|
99
|
|
|
* @throws \LogicException |
|
100
|
|
|
* |
|
101
|
|
|
* @return string |
|
102
|
|
|
*/ |
|
103
|
|
|
protected function decrypt($encryptedData) |
|
104
|
|
|
{ |
|
105
|
|
|
if ($this->encryptionKey !== null) { |
|
106
|
|
|
return Crypto::decryptWithPassword($encryptedData, $this->encryptionKey); |
|
107
|
|
|
} |
|
108
|
|
|
|
|
109
|
|
|
$publicKey = openssl_pkey_get_public($this->publicKey->getKeyPath()); |
|
110
|
|
|
$publicKeyDetails = @openssl_pkey_get_details($publicKey); |
|
111
|
|
|
if ($publicKeyDetails === null) { |
|
112
|
|
|
throw new \LogicException( |
|
113
|
|
|
sprintf('Could not get details of public key: %s', $this->publicKey->getKeyPath()) |
|
114
|
|
|
); |
|
115
|
|
|
} |
|
116
|
|
|
|
|
117
|
|
|
$chunkSize = ceil($publicKeyDetails['bits'] / 8); |
|
118
|
|
|
$output = ''; |
|
119
|
|
|
|
|
120
|
|
|
$encryptedData = base64_decode($encryptedData); |
|
121
|
|
|
|
|
122
|
|
|
while ($encryptedData) { |
|
123
|
|
|
$chunk = substr($encryptedData, 0, $chunkSize); |
|
124
|
|
|
$encryptedData = substr($encryptedData, $chunkSize); |
|
125
|
|
|
if (openssl_public_decrypt($chunk, $decrypted, $publicKey/*, OPENSSL_PKCS1_OAEP_PADDING*/) === false) { |
|
126
|
|
|
// @codeCoverageIgnoreStart |
|
127
|
|
|
throw new \LogicException('Failed to decrypt data'); |
|
128
|
|
|
// @codeCoverageIgnoreEnd |
|
129
|
|
|
} |
|
130
|
|
|
$output .= $decrypted; |
|
131
|
|
|
} |
|
132
|
|
|
openssl_pkey_free($publicKey); |
|
133
|
|
|
|
|
134
|
|
|
return $output; |
|
135
|
|
|
} |
|
136
|
|
|
|
|
137
|
|
|
/** |
|
138
|
|
|
* Set the encryption key |
|
139
|
|
|
* |
|
140
|
|
|
* @param string $key |
|
141
|
|
|
*/ |
|
142
|
|
|
public function setEncryptionKey($key = null) |
|
143
|
|
|
{ |
|
144
|
|
|
$this->encryptionKey = $key; |
|
145
|
|
|
} |
|
146
|
|
|
} |
|
147
|
|
|
|
thephpleague /
oauth2-server
