Subversion Repositories oidplus

<?php

/*

 * OIDplus 2.0

 * Copyright 2019 - 2021 Daniel Marschall, ViaThinkSoft

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

namespace ViaThinkSoft\OIDplus;

class OIDplusAuthPluginSha3SaltedBase64 extends OIDplusAuthPlugin {

        public function verify(OIDplusRAAuthInfo $authInfo, $check_password) {

                $authKey = $authInfo->getAuthKey();

                $salt = $authInfo->getSalt();

                @list($s_authmethod, $s_authkey) = explode('#', $authKey, 2);

                if ($s_authmethod == 'A2') {

                        // A2#X with X being sha3(salt+password) in base64-notation

                        $calc_authkey = base64_encode(sha3_512($salt.$check_password, true));

                } else {

                        // Invalid auth code

                        return false;

                }

                return hash_equals($calc_authkey, $s_authkey);

        }

        public function generate($password): OIDplusRAAuthInfo {

                $s_salt = bin2hex(OIDplus::authUtils()->getRandomBytes(50)); // DB field ra.salt is limited to 100 chars (= 50 bytes)

                $calc_authkey = 'A2#'.base64_encode(sha3_512($s_salt.$password, true));

                return new OIDplusRAAuthInfo($s_salt, $calc_authkey);

        }

}