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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <nick@popphp.org> |
| 8 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Crypt\Hashing; |
| 16 | |
| 17 | /** |
| 18 | * Pop Crypt abstract hasher |
| 19 | * |
| 20 | * @category Pop |
| 21 | * @package Pop\Crypt |
| 22 | * @author Nick Sagona, III <nick@popphp.org> |
| 23 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 24 | * @license https://www.popphp.org/license New BSD License |
| 25 | * @version 4.0.0 |
| 26 | */ |
| 27 | abstract class AbstractHasher |
| 28 | { |
| 29 | |
| 30 | /** |
| 31 | * Maximum allowed length, in bytes, for a value passed to createHash() or verify(). |
| 32 | * |
| 33 | * Argon2's cost scales with input size, so without a cap an attacker-controlled |
| 34 | * value of unbounded length becomes an algorithmic-complexity denial-of-service |
| 35 | * vector. 4096 matches the limit used by Symfony's password hasher. |
| 36 | */ |
| 37 | const MAX_VALUE_LENGTH = 4096; |
| 38 | |
| 39 | /** |
| 40 | * Make hashed value (based on the hasher class) |
| 41 | * |
| 42 | * @param string $value |
| 43 | * @return string |
| 44 | */ |
| 45 | abstract public function make(#[\SensitiveParameter] string $value): string; |
| 46 | |
| 47 | /** |
| 48 | * Determine if the hashed value requires re-hashing (based on the hasher class) |
| 49 | * |
| 50 | * @param string $hashedValue |
| 51 | * @return bool |
| 52 | */ |
| 53 | abstract public function requiresRehash(string $hashedValue): bool; |
| 54 | |
| 55 | /** |
| 56 | * Set hasher options |
| 57 | * |
| 58 | * @param array $options |
| 59 | * @return static |
| 60 | */ |
| 61 | abstract public function setOptions(array $options): static; |
| 62 | |
| 63 | /** |
| 64 | * Create hasher object with options |
| 65 | * |
| 66 | * @return static |
| 67 | */ |
| 68 | public static function create(array $options = []): static |
| 69 | { |
| 70 | $hasher = new static(); |
| 71 | $hasher->setOptions($options); |
| 72 | return $hasher; |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Create hashed value |
| 77 | * |
| 78 | * @param string $value |
| 79 | * @param string|int|null $algorithm |
| 80 | * @param array $options |
| 81 | * @throws Exception |
| 82 | * @return string |
| 83 | */ |
| 84 | public function createHash(#[\SensitiveParameter] string $value, string|int|null $algorithm, array $options = []): string |
| 85 | { |
| 86 | if (strlen($value) > static::MAX_VALUE_LENGTH) { |
| 87 | throw new Exception('Error: The value exceeds the maximum allowed length of ' . static::MAX_VALUE_LENGTH . ' bytes.'); |
| 88 | } |
| 89 | return password_hash($value, $algorithm, $options); |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Get info from hashed value |
| 94 | * |
| 95 | * @param string $hashedValue |
| 96 | * @return array |
| 97 | */ |
| 98 | public function getInfo(string $hashedValue): array |
| 99 | { |
| 100 | return password_get_info($hashedValue); |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Get available hashing algorithms |
| 105 | * |
| 106 | * @return array |
| 107 | */ |
| 108 | public function getAlgorithms(): array |
| 109 | { |
| 110 | return password_algos(); |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * Determine if the hashed value needs to be re-hashed |
| 115 | * |
| 116 | * @param string $hashedValue |
| 117 | * @param string|int|null $algorithm |
| 118 | * @param array $options |
| 119 | * @return bool |
| 120 | */ |
| 121 | public function needsRehash(string $hashedValue, string|int|null $algorithm, array $options = []): bool |
| 122 | { |
| 123 | return password_needs_rehash($hashedValue, $algorithm, $options); |
| 124 | } |
| 125 | |
| 126 | /** |
| 127 | * Verify hash |
| 128 | * |
| 129 | * @param string $value |
| 130 | * @param string $hashedValue |
| 131 | * @throws Exception |
| 132 | * @return bool |
| 133 | */ |
| 134 | public function verify(#[\SensitiveParameter] string $value, string $hashedValue): bool |
| 135 | { |
| 136 | if (strlen($value) > static::MAX_VALUE_LENGTH) { |
| 137 | throw new Exception('Error: The value exceeds the maximum allowed length of ' . static::MAX_VALUE_LENGTH . ' bytes.'); |
| 138 | } |
| 139 | return password_verify($value, $hashedValue); |
| 140 | } |
| 141 | |
| 142 | } |