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1<?php
2
3declare(strict_types=1);
4
5namespace PeServer\App\Models;
6
7use PeServer\Core\Cryptography;
8use PeServer\Core\Throws\CryptoException;
9use PeServer\App\Models\AppConfiguration;
10use PeServer\Core\Binary;
11use PeServer\Core\Text;
12
13final class AppCryptography
14{
15    public function __construct(
16        private AppConfiguration $config
17    ) {
18    }
19
20    #region function
21
22    /**
23     * アプリケーション設定から文字列暗号化。
24     *
25     * @param string $data
26     * @return string DB格納値を想定。
27     */
28    public function encrypt(string $data): string
29    {
30        $crypto = $this->config->setting->crypto;
31        return Cryptography::encrypt($crypto->algorithm, $data, $crypto->password);
32    }
33
34    /**
35     * アプリケーション設定から文字列復号化。
36     *
37     * @param string $data DB格納値を想定。
38     * @return string アプリ使用文字列を想定。
39     */
40    public function decrypt(string $data): string
41    {
42        $crypto = $this->config->setting->crypto;
43        return Cryptography::decrypt($data, $crypto->password);
44    }
45
46    public function encryptToken(string $data): string
47    {
48        $token = $this->config->setting->crypto->token;
49        $value = Cryptography::encrypt($token->algorithm, $data, $token->password);
50        return Text::split($value, Cryptography::SEPARATOR, 2)[1];
51    }
52
53    public function decryptToken(string $data): string
54    {
55        $token = $this->config->setting->crypto->token;
56        $value = $data;
57        return Cryptography::decrypt($token->algorithm . Cryptography::SEPARATOR . $value, $token->password);
58    }
59
60    /**
61     * 検索用マーカー整数への変換。
62     *
63     * 一意性はないので暗号化データの絞り込みに使用する想定。
64     *
65     * @param string $data
66     * @return int
67     */
68    public function toMark(string $data): int
69    {
70        $crypto = $this->config->setting->crypto;
71        $input = $data . $crypto->pepper;
72
73        $binary = Cryptography::generateHashBinary('fnv132', new Binary($input));
74
75        $result = unpack('N', $binary->raw, 0);
76        if ($result === false) {
77            throw new CryptoException();
78        }
79
80        return $result[1];
81    }
82
83    #endregion
84}