crypto/chacha20/NOTICE

   1 This project contains code developed by Daniel J. Bernstein which was
   2 released into the public domain. This code is based on Bernstein's
   3 "chacha-merged.c version 20080118". Daniel J. Bernstein's original code
   4 can be found at the following here: http://cr.yp.to/chacha.html
   5
   6 This project also contains code based on part of the libsodium cryptographic
   7 library. The xchacha_hchacha and xchacha_set_counter functions were borrowed
   8 from libsodium and modified.
   9 More information about libsodium can be found at the following
  10 websites:
  11 https://github.com/jedisct1/libsodium
  12 https://download.libsodium.org/doc/
  13
  14 The code based on libsodium is used under the following license:
  15
  16 /*
  17  * ISC License
  18  *
  19  * Copyright (c) 2013-2019
  20  * Frank Denis <j at pureftpd dot org>
  21  *
  22  * Permission to use, copy, modify, and/or distribute this software for any
  23  * purpose with or without fee is hereby granted, provided that the above
  24  * copyright notice and this permission notice appear in all copies.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  27  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  28  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  29  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  30  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  31  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  32  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  33  */