|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace RichardStyles\EloquentEncryption; |
|
4
|
|
|
|
|
5
|
|
|
use Illuminate\Support\Facades\Config; |
|
6
|
|
|
use phpseclib\Crypt\RSA; |
|
7
|
|
|
use RichardStyles\EloquentEncryption\Contracts\RsaKeyHandler; |
|
8
|
|
|
use RichardStyles\EloquentEncryption\Exceptions\InvalidRsaKeyHandler; |
|
9
|
|
|
use RichardStyles\EloquentEncryption\Exceptions\RSAKeyFileMissing; |
|
10
|
|
|
use RichardStyles\EloquentEncryption\FileSystem\RsaKeyStorageHandler; |
|
11
|
|
|
|
|
12
|
|
|
class EloquentEncryption |
|
13
|
|
|
{ |
|
14
|
|
|
|
|
15
|
|
|
/** |
|
16
|
|
|
* @var RsaKeyHandler |
|
17
|
|
|
*/ |
|
18
|
|
|
private $handler; |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* ApplicationKey constructor. |
|
22
|
|
|
*/ |
|
23
|
|
|
public function __construct() |
|
24
|
|
|
{ |
|
25
|
|
|
$this->handler = app()->make( |
|
26
|
|
|
Config::get('eloquent_encryption.handler', RsaKeyStorageHandler::class) |
|
27
|
|
|
); |
|
28
|
|
|
|
|
29
|
|
|
if(!$this->handler instanceof RsaKeyHandler){ |
|
30
|
|
|
throw new InvalidRsaKeyHandler; |
|
31
|
|
|
} |
|
32
|
|
|
} |
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* Have any RSA keys been generated |
|
36
|
|
|
* |
|
37
|
|
|
* @return bool |
|
38
|
|
|
*/ |
|
39
|
|
|
public function exists() |
|
40
|
|
|
{ |
|
41
|
|
|
return $this->handler->exists(); |
|
42
|
|
|
} |
|
43
|
|
|
|
|
44
|
|
|
/** |
|
45
|
|
|
* Generate a set of RSA Keys which will be used to encrypt the database fields |
|
46
|
|
|
*/ |
|
47
|
|
|
public function makeEncryptionKeys() |
|
48
|
|
|
{ |
|
49
|
|
|
$key = $this->createKey(Config::get('eloquent_encryption.key.email')); |
|
50
|
|
|
$this->handler->saveKey($key['publickey'], $key['privatekey']); |
|
51
|
|
|
} |
|
52
|
|
|
|
|
53
|
|
|
/** |
|
54
|
|
|
* Create a digital set of RSA keys, defaulting to 4096-bit |
|
55
|
|
|
* |
|
56
|
|
|
* @param string $email |
|
57
|
|
|
* @return array |
|
58
|
|
|
*/ |
|
59
|
|
|
public function createKey($email = '') |
|
60
|
|
|
{ |
|
61
|
|
|
$rsa = new RSA(); |
|
62
|
|
|
$rsa->setPublicKeyFormat(RSA::PUBLIC_FORMAT_OPENSSH); |
|
63
|
|
|
$rsa->setComment($email); |
|
64
|
|
|
|
|
65
|
|
|
return $rsa->createKey(Config::get('eloquent_encryption.key.length', 4096)); |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
/** |
|
69
|
|
|
* Helper function to ensure RSA options match for encrypting/decrypting |
|
70
|
|
|
* |
|
71
|
|
|
* @param $key |
|
72
|
|
|
* @return RSA |
|
73
|
|
|
*/ |
|
74
|
|
|
private function getRsa($key) |
|
75
|
|
|
{ |
|
76
|
|
|
$rsa = new RSA(); |
|
77
|
|
|
$rsa->loadKey($key); |
|
78
|
|
|
$rsa->setEncryptionMode(RSA::ENCRYPTION_OAEP); |
|
79
|
|
|
|
|
80
|
|
|
return $rsa; |
|
81
|
|
|
} |
|
82
|
|
|
|
|
83
|
|
|
/** |
|
84
|
|
|
* Encrypt a value using the RSA key |
|
85
|
|
|
* |
|
86
|
|
|
* @param $value |
|
87
|
|
|
* @return false|string |
|
88
|
|
|
* @throws RSAKeyFileMissing |
|
89
|
|
|
*/ |
|
90
|
|
|
public function encrypt($value) |
|
91
|
|
|
{ |
|
92
|
|
|
return $this->getRsa($this->handler->getPublicKey()) |
|
93
|
|
|
->encrypt($value); |
|
94
|
|
|
} |
|
95
|
|
|
|
|
96
|
|
|
/** |
|
97
|
|
|
* Decrypt a value using the RSA key |
|
98
|
|
|
* |
|
99
|
|
|
* @param $value |
|
100
|
|
|
* @return false|string|null |
|
101
|
|
|
* @throws RSAKeyFileMissing |
|
102
|
|
|
*/ |
|
103
|
|
|
public function decrypt($value) |
|
104
|
|
|
{ |
|
105
|
|
|
if (empty($value)) { |
|
106
|
|
|
return null; |
|
107
|
|
|
} |
|
108
|
|
|
|
|
109
|
|
|
return $this->getRsa($this->handler->getPrivateKey()) |
|
110
|
|
|
->decrypt($value); |
|
111
|
|
|
} |
|
112
|
|
|
|
|
113
|
|
|
public function __call($name, $arguments) |
|
114
|
|
|
{ |
|
115
|
|
|
if(method_exists($this->handler, $name)){ |
|
116
|
|
|
return $this->handler->{$name}($arguments); |
|
117
|
|
|
} |
|
118
|
|
|
} |
|
119
|
|
|
} |
|
120
|
|
|
|
RichardStyles /
EloquentEncryption
