| This ARMv8 NEON implementation is provided under the Apache 2.0 license: |
| |
| /* |
| * ============================================================================= |
| * Copyright (c) 2023 by Cryptographic Engineering Research Group (CERG) |
| * ECE Department, George Mason University |
| * Fairfax, VA, U.S.A. |
| * Author: Duc Tri Nguyen |
| * 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. |
| * ============================================================================= |
| * @author Duc Tri Nguyen <[email protected]>, <[email protected]> |
| */ |
| |
| Based on the reference code provided under the MIT license: |
| |
| * ==========================(LICENSE BEGIN)============================ |
| * Copyright (c) 2017-2019 Falcon Project |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * ===========================(LICENSE END)============================= |
| |
| It was written by Thomas Pornin <thomas.pornin@nccgroup.com>. |
| |
| It has been reported that patent US7308097B2 may be applicable to parts |
| of Falcon. William Whyte, one of the designers of Falcon and also |
| representative of OnBoard Security (current owner of the said patent), |
| has pledged, as part of the IP statements submitted to the NIST for the |
| PQC project, that in the event of Falcon being selected for |
| standardization, a worldwide non-exclusive license to the patent will be |
| granted for the purpose of implementing the standard "without |
| compensation and under reasonable terms and conditions that are |
| demonstrably free of any unfair discrimination". |
