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| Rev | Author | Line No. | Line |
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| 1088 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | /* |
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| 4 | * OIDplus 2.0 |
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| 5 | * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft |
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| 6 | * |
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| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 8 | * you may not use this file except in compliance with the License. |
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| 9 | * You may obtain a copy of the License at |
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| 10 | * |
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| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 12 | * |
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| 13 | * Unless required by applicable law or agreed to in writing, software |
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| 14 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 16 | * See the License for the specific language governing permissions and |
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| 17 | * limitations under the License. |
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| 18 | */ |
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| 19 | |||
| 20 | namespace ViaThinkSoft\OIDplus; |
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| 21 | |||
| 22 | // phpcs:disable PSR1.Files.SideEffects |
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| 23 | \defined('INSIDE_OIDPLUS') or die; |
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| 24 | // phpcs:enable PSR1.Files.SideEffects |
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| 25 | |||
| 26 | class OIDplusAuthPluginArgon2 extends OIDplusAuthPlugin { |
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| 27 | |||
| 28 | public function init($html=true) { |
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| 29 | // TODO: Let the admin decide about the memory, iterations, and parallelism options |
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| 30 | } |
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| 31 | |||
| 32 | private function supportedCryptAlgo($authKey) { |
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| 33 | return str_starts_with($authKey, '$argon2i$') || |
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| 34 | str_starts_with($authKey, '$argon2id$'); |
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| 35 | } |
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| 36 | |||
| 37 | public function verify(OIDplusRAAuthInfo $authInfo, $check_password) { |
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| 38 | $authKey = $authInfo->getAuthKey(); |
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| 39 | $salt = $authInfo->getSalt(); |
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| 40 | |||
| 41 | if (!$this->supportedCryptAlgo($authKey)) { |
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| 42 | // Unsupported algorithm |
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| 43 | return false; |
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| 44 | } |
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| 45 | |||
| 46 | // $argon2i$v=19$m=1024,t=2,p=2$MEhSZkJLQXUxRzljNE5hMw$33pvelMsxqOn/1VV2pnjmKJUECBhilzOZ2+Gq/FxCP4 |
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| 47 | // \_____/ \__/ \____________/ \____________________/ \_________________________________________/ |
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| 48 | // Algo Vers Cost options Salt Hash |
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| 49 | |||
| 50 | if ($salt != '') { |
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| 51 | throw new OIDplusException(_L('This function does not accept an explicit salt')); |
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| 52 | } |
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| 53 | |||
| 54 | return password_verify($check_password, $authKey); |
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| 55 | } |
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| 56 | |||
| 57 | private function getBestHashAlgo() { |
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| 58 | if ($this->supportsArgon2id()) { |
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| 59 | $hashalgo = PASSWORD_ARGON2ID; |
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| 60 | } else if ($this->supportsArgon2i()) { |
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| 61 | $hashalgo = PASSWORD_ARGON2I; |
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| 62 | } else { |
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| 63 | $hashalgo = false; |
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| 64 | } |
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| 65 | return $hashalgo; |
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| 66 | } |
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| 67 | |||
| 68 | public function generate($password): OIDplusRAAuthInfo { |
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| 69 | $s_salt = ''; // Argon2 automatically generates a salt |
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| 70 | $hashalgo = $this->getBestHashAlgo(); |
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| 71 | assert($hashalgo !== false); // Should not happen if we called available() before! |
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| 72 | $calc_authkey = password_hash($password, $hashalgo); |
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| 73 | if (!$calc_authkey) throw new OIDplusException(_L('Error creating password hash')); |
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| 74 | assert($this->supportedCryptAlgo($calc_authkey)); |
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| 75 | return new OIDplusRAAuthInfo($s_salt, $calc_authkey); |
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| 76 | } |
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| 77 | |||
| 78 | private function supportsArgon2i(): bool { |
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| 79 | if (version_compare(PHP_VERSION, '7.4.0') >= 0) { |
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| 80 | return in_array('argon2i', password_algos()); |
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| 81 | } else { |
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| 82 | return defined('PASSWORD_ARGON2I'); |
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| 83 | } |
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| 84 | } |
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| 85 | |||
| 86 | private function supportsArgon2id(): bool { |
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| 87 | if (version_compare(PHP_VERSION, '7.4.0') >= 0) { |
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| 88 | return in_array('argon2id', password_algos()); |
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| 89 | } else { |
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| 90 | return defined('PASSWORD_ARGON2ID'); |
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| 91 | } |
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| 92 | } |
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| 93 | |||
| 94 | public function available(&$reason): bool { |
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| 95 | if (!$this->supportsArgon2i() && !$this->supportsArgon2id()) { |
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| 96 | $reason = _L('No fitting hash algorithm found'); |
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| 97 | return false; |
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| 98 | } else { |
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| 99 | return true; |
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| 100 | } |
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| 101 | } |
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| 102 | |||
| 103 | } |