github.com/zmap/zcrypto@v0.0.0-20240512203510-0fef58d9a9db/LICENSE

ZCrypto is an original work created at the University of Michigan, and is
licensed under the Apache 2.0 license. However, ZCrypto contains a fork of
several packages from Golang standard library, as well as code from the
BoringSSL test runner. Files that were created by Google, and new files in
forks of packages maintained by Google have a Google copyright and fall under
the ISC license. In addition ZCrypto includes a `util/isURL.go` file created by
Alex Saskevich and licensed under the MIT license. All other files are copyright
Regents of the University of Michigan, and fall under the Apache 2.0 license.
All three licenses are reproduced at the bottom of this file.

--------

ISC License used for Google code

/* Copyright (c) 2015, Google Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */

--------

MIT License used for util/isURL.go adopted from https://github.com/asaskevich/govalidator

  The MIT License (MIT)

  Copyright (c) 2014 Alex Saskevich

  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.

--------

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   ZCrypto Copyright 2015 Regents of the University of Michigan

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
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