Commit | Line | Data |
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14d4f286 S |
1 | <?php |
2 | /** | |
3 | * The UniqID Random Number Source | |
4 | * | |
5 | * This uses the internal `uniqid()` function to generate low strength random | |
6 | * numbers. | |
7 | * | |
8 | * PHP version 5.3 | |
9 | * | |
10 | * @category PHPCryptLib | |
11 | * @package Random | |
12 | * @subpackage Source | |
13 | * @author Anthony Ferrara <ircmaxell@ircmaxell.com> | |
14 | * @copyright 2011 The Authors | |
15 | * @license http://www.opensource.org/licenses/mit-license.html MIT License | |
16 | * @version Build @@version@@ | |
17 | */ | |
18 | ||
19 | namespace CryptLib\Random\Source; | |
20 | ||
21 | use CryptLib\Core\Strength; | |
22 | ||
23 | /** | |
24 | * The UniqID Random Number Source | |
25 | * | |
26 | * This uses the internal `uniqid()` function to generate low strength random | |
27 | * numbers. | |
28 | * | |
29 | * @category PHPCryptLib | |
30 | * @package Random | |
31 | * @subpackage Source | |
32 | * @author Anthony Ferrara <ircmaxell@ircmaxell.com> | |
33 | * @codeCoverageIgnore | |
34 | */ | |
35 | class UniqID implements \CryptLib\Random\Source { | |
36 | ||
37 | /** | |
38 | * Return an instance of Strength indicating the strength of the source | |
39 | * | |
40 | * @return Strength An instance of one of the strength classes | |
41 | */ | |
42 | public static function getStrength() { | |
43 | return new Strength(Strength::LOW); | |
44 | } | |
45 | ||
46 | /** | |
47 | * Generate a random string of the specified size | |
48 | * | |
49 | * @param int $size The size of the requested random string | |
50 | * | |
51 | * @return string A string of the requested size | |
52 | */ | |
53 | public function generate($size) { | |
54 | $result = ''; | |
55 | while (strlen($result) < $size) { | |
56 | $result = uniqid($result, true); | |
57 | } | |
58 | return substr($result, 0, $size); | |
59 | } | |
60 | ||
61 | } |