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aria-label="Breadcrumb" class="breadcrumb-nav"> <ol class="breadcrumb-nav-list"> <li class="breadcrumb-nav-list-item"><a href="/liboqs/">liboqs</a></li> <li class="breadcrumb-nav-list-item"><span>License</span></li> </ol> </nav> <div id="main-content" class="main-content"> <main> <h1 id="license"> <a href="#license" class="anchor-heading" aria-labelledby="license"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> License </h1> <p>liboqs is licensed under the MIT License; see <a href="https://github.com/open-quantum-safe/liboqs/blob/main/LICENSE.txt">LICENSE.txt</a> for details.</p> <p>liboqs includes some third party libraries or modules that are licensed differently; the corresponding subfolder contains the license that applies in that case. In particular:</p> <ul> <li><code class="language-plaintext highlighter-rouge">.CMake/CMakeDependentOption.cmake</code>: BSD 3-Clause License</li> <li><code class="language-plaintext highlighter-rouge">src/common/common.c</code>: includes portions which are Apache License v2.0</li> <li><code class="language-plaintext highlighter-rouge">src/common/crypto/aes/aes_c.c</code>: public domain or any OSI-approved license</li> <li><code class="language-plaintext highlighter-rouge">src/common/crypto/aes/aes*_ni.c</code>: public domain</li> <li><code class="language-plaintext highlighter-rouge">src/common/crypto/sha2/sha2_c.c</code>: public domain</li> <li><code class="language-plaintext highlighter-rouge">src/common/crypto/sha3/xkcp_low</code> : CC0 (public domain), except <code class="language-plaintext highlighter-rouge">brg_endian.h</code> and <code class="language-plaintext highlighter-rouge">KeccakP-1600-AVX2.s</code></li> <li><code class="language-plaintext highlighter-rouge">src/common/crypto/sha3/xkcp_low/.../brg_endian.h</code> : BSD 3-Clause License</li> <li><code class="language-plaintext highlighter-rouge">src/common/crypto/sha3/xkcp_low/.../KeccakP-1600-AVX2.s</code> : BSD-like <a href="http://www.openssl.org/~appro/cryptogams/">CRYPTOGAMS license</a></li> <li><code class="language-plaintext highlighter-rouge">src/common/rand/rand_nist.c</code>: See file</li> <li><code class="language-plaintext highlighter-rouge">src/kem/bike/additional</code>: Apache License v2.0</li> <li><code class="language-plaintext highlighter-rouge">src/kem/classic_mceliece/pqclean_*</code>: public domain</li> <li><code class="language-plaintext highlighter-rouge">src/kem/kyber/pqcrystals-*</code>: public domain (CC0) or Apache License v2.0</li> <li><code class="language-plaintext highlighter-rouge">src/kem/kyber/pqclean_*</code>: public domain (CC0), and public domain (CC0) or Apache License v2.0, and public domain (CC0) or MIT, and MIT</li> <li><code class="language-plaintext highlighter-rouge">src/kem/kyber/libjade_*</code> public domain (CC0) or Apache License v2.</li> <li><code class="language-plaintext highlighter-rouge">src/kem/ml_kem/pqcrystals-*</code>: public domain (CC0) or Apache License v2.0</li> <li><code class="language-plaintext highlighter-rouge">src/sig/dilithium/pqcrystals-*</code>: public domain (CC0) or Apache License v2.0</li> <li><code class="language-plaintext highlighter-rouge">src/sig/dilithium/pqclean_*</code>: public domain (CC0), and public domain (CC0) or Apache License v2.0, and public domain (CC0) or MIT, and MIT</li> <li>src/sig/falcon/pqclean_*_aarch64 : Apache License v2.0</li> <li><code class="language-plaintext highlighter-rouge">src/sig/mayo/*</code>: Apache License v2.0</li> <li><code class="language-plaintext highlighter-rouge">src/sig/ml_dsa/pqcrystals-*</code>: public domain (CC0) or Apache License v2.0</li> <li><code class="language-plaintext highlighter-rouge">src/sig/sphincs/pqclean_*</code>: CC0 (public domain)</li> </ul> <h2 id="mit-license"> <a href="#mit-license" class="anchor-heading" aria-labelledby="mit-license"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> MIT License </h2> <p>The MIT license, the text of which is below, applies to liboqs in general. liboqs includes some third party libraries or modules that are licensed differently; the corresponding subfolder contains the license that applies in that case.</p> <p>Copyright (c) 2016-2024 The Open Quantum Safe project authors</p> <p>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:</p> <p>The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.</p> <p>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. 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