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NOTICE
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Legal notices below. See LICENSE and CONTRIBUTORS for additional
information. All links were valid at the time they were added to
this file.
=======================================================================
fd_hash and fd_hash_memcpy are currently a modified implementation of
the hashing algorithm in xxHash(r39). xxHash(r39) can be found at
https://github.com/Cyan4973/xxHash/releases/tag/r39 (note the xxHash
source code repository has changed location a few times over the years).
From https://github.com/Cyan4973/xxHash/archive/refs/tags/r39.zip at xxHash-r39/LICENSE:
xxHash Library
Copyright (c) 2012-2014, Yann Collet
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=======================================================================
fd_uint_hash and fd_ulong_hash are currently based on the final full
avalanche integer mixing functions, fmix32 and fmix64, found in the
MurmurHash3 hashing algorithm. Murmur3 can be found at
https://github.com/aappleby/smhasher.
From https://github.com/aappleby/smhasher/blob/master/src/MurmurHash3.cpp#L2
// MurmurHash3 was written by Austin Appleby, and is placed in the public
// domain. The author hereby disclaims copyright to this source code.
=======================================================================
The sha512 implementation in src/ballet/sha512 is currently a modified
implementation of the OpenSSL sha512 implementation circa 2022-Oct.
From
https://github.com/openssl/openssl/blob/master/crypto/sha/sha512.c#L1:
/*
* Copyright 2004-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
OpenSSL licensing details can be found at:
https://github.com/openssl/openssl/blob/master/LICENSE.txt
The assembly language file in src/ballet/sha512/fd_sha512_core_avx2.S
contains autogenerated assembly code produced by OpenSSL's sha512 AVX2
asm code generator. From crypto/sha/asm/sha512-x86_64.pl#L2:
# Copyright 2005-2020 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
and crypto/perlasm/x86_64-xlate.pl#L1:
# Copyright 2005-2020 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
Similarly the sha256 implementation in src/ballet/sha256 is based on the
OpenSSL sha256 implementation and the assembly language file
src/ballet/sha256/fd_sha256_core_shaext.S contains autogenerated
assembly code produced by OpenSSL's sha256 SHA extension assembly
generator. The corresponding license terms are the same as sha512 and
can be found at crypto/sha/sha256.c#L1, crypto/sha/asm/sha256-586.pl#L2
and crypto/perlasm/x86asm.pl#L2 (all circa 2022-Dec).
Further description of the modifications can be found in the
implementations themselves.
=======================================================================
The ed25519 implementation in src/ballet/ed25519 is currently a very
heavily optimized implementation originally based on the OpenSSL ed25519
implementation circa 2022-Oct.
From
https://github.com/openssl/openssl/blob/master/crypto/ec/curve25519.c#L1:
/*
* Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
=======================================================================
Test vectors for SHA-2 hash functions where copied from the
NIST Cryptographic Algorithm Validation Program (CAVP) website.
Source of SHA-2 test vectors: https://csrc.nist.gov/Projects/Cryptographic-Algorithm-Validation-Program/Secure-Hashing (circa 2022-Dec)
Source of license text: https://www.nist.gov/open/copyright-fair-use-and-licensing-statements-srd-data-software-and-technical-series-publications#software (circa 2022-Dec)
NIST-developed software is provided by NIST as a public service. You may use, copy, and distribute copies of the software in any medium, provided that you keep intact this entire notice. You may improve, modify, and create derivative works of the software or any portion of the software, and you may copy and distribute such modifications or works. Modified works should carry a notice stating that you changed the software and should note the date and nature of any such change. Please explicitly acknowledge the National Institute of Standards and Technology as the source of the software.
NIST-developed software is expressly provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED, IN FACT, OR ARISING BY OPERATION OF LAW, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND DATA ACCURACY. NIST NEITHER REPRESENTS NOR WARRANTS THAT THE OPERATION OF THE SOFTWARE WILL BE UNINTERRUPTED OR ERROR-FREE, OR THAT ANY DEFECTS WILL BE CORRECTED. NIST DOES NOT WARRANT OR MAKE ANY REPRESENTATIONS REGARDING THE USE OF THE SOFTWARE OR THE RESULTS THEREOF, INCLUDING BUT NOT LIMITED TO THE CORRECTNESS, ACCURACY, RELIABILITY, OR USEFULNESS OF THE SOFTWARE.
You are solely responsible for determining the appropriateness of using and distributing the software and you assume all risks associated with its use, including but not limited to the risks and costs of program errors, compliance with applicable laws, damage to or loss of data, programs or equipment, and the unavailability or interruption of operation. This software is not intended to be used in any situation where a failure could cause risk of injury or damage to property. The software developed by NIST employees is not subject to copyright protection within the United States.
=======================================================================
//src/util/sanitizers is a modified version of LLVM project compiler-rt
taken ca 2023-Jan.
LLVM project mirror: https://github.com/llvm/llvm-project
See https://llvm.org/LICENSE.txt for license information.
SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception