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lib25519: Download</title>
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lib25519</div>
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<div class="navt away"><a href=index.html>Intro</a>
</div><div class="navt here">Download
</div><div class="navt away"><a href=install.html>Install</a>
</div><div class="navt away"><a href=test.html>Test</a>
</div><div class="navt away"><a href=x25519-cli.html>X CLI</a>
</div><div class="navt away"><a href=ed25519-cli.html>Ed CLI</a>
</div><div class="navt away"><a href=api.html>API</a>
</div><div class="navt away"><a href=security.html>Security</a>
</div><div class="navt away"><a href=speed.html>Speed</a>
</div><div class="navt away"><a href=internals.html>Internals</a>
</div><div class="navt away"><a href=people.html>People</a>
</div><div class="navt away"><a href=license.html>License</a>
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<p>To download and unpack the latest version of lib25519:</p>
<pre><code>wget -m https://lib25519.cr.yp.to/lib25519-latest-version.txt
version=$(cat lib25519.cr.yp.to/lib25519-latest-version.txt)
wget -m https://lib25519.cr.yp.to/lib25519-$version.tar.gz
tar -xzf lib25519.cr.yp.to/lib25519-$version.tar.gz
cd lib25519-$version
</code></pre>
<p>Then <a href="install.html">install</a>.</p>
<h3 id="changelog">Archives and changelog (reverse chronological)</h3>
<p><a href="lib25519-20241004.tar.gz"><code>lib25519-20241004.tar.gz</code></a> <a href="lib25519-20241004.html">browse</a></p>
<p>Announce latest version on front page.</p>
<p>Upgrade to <code>cryptoint 20241003</code>.</p>
<p>Use the <code>cryptoint</code> big-endian load/store functions in various SHA-512 functions.
In particular, this ports <code>wflip</code> to big-endian CPUs;
thanks to Jan Mojzis for pointing out the portability issue.</p>
<p>Include <code>crypto_declassify.h</code> for non-<code>valgrind</code> builds,
and include <code>crypto_asm_rodata.h</code> for default builds.
Thanks to Jan Mojzis.</p>
<p>Align constants in
<code>crypto_nP/montgomery25519/amd64-avx512-8x1-ns10l-maax/shared-consts.c</code>.</p>
<p><a href="lib25519-20240928.tar.gz"><code>lib25519-20240928.tar.gz</code></a> <a href="lib25519-20240928.html">browse</a></p>
<p>Add <code>mGnP/ed25519/arm64-maa4-{int,red}mul</code>.</p>
<p>Add <code>multiscalar/ed25519/amd64-{maa4,maax,mxaa}-opt</code>,
<code>multiscalar/ed25519/amd64-{maa4,maax,mxaa}-p3-opt</code>,
<code>multiscalar/ed25519/arm64-maa4-{int,red}mul</code>,
<code>multiscalar/ed25519/arm64-maa4-{int,red}mul-p3</code>.</p>
<p>Use <code>nsquare</code> more in <code>fe25519_pow2523.c</code>.</p>
<p>Replace <code>fe25519_cmov.c</code> with <code>fe25519_cmov.S</code>.</p>
<p>Speed up <code>double_scalarmult</code>,
<code>arm64-maa4-{int,red}mul/mladder.S</code>,
<code>arm64-maa4-{int,red}mul/fe25519_nsquare.S</code>,
<code>arm64-maa4-{int,red}mul/ge25519_base.S</code>.</p>
<p>Switch speed measurements from medians to interquartile means.</p>
<p>Upgrade from <code>inttypes</code> to <code>cryptoint 20240806</code>, and use <code>cryptoint</code> more systematically.</p>
<p>Support <code>valgrind</code> in <code>lib25519-test</code>, with help from <code>configure</code>.</p>
<p>Split <code>command/lib25519-test.c</code> into multiple <code>.c</code> files.</p>
<p>Support finer-grained command-line splits in <code>lib25519-test</code>.
Add <code>lib25519-fulltest</code>.
Document <code>lib25519-fulltest</code> as being required for support.</p>
<p>Move some entries not supported by <code>valgrind</code>
from <code>compilers</code> to <code>skipcompilers</code>.</p>
<p>Rename <code>--no</code> as <code>--no-</code>.</p>
<p>Rename <code>ALIGN</code> as <code>CRYPTO_ALIGN</code>.
Systematically use <code>CRYPTO_ALIGN</code>.</p>
<p>Use <code>hidden</code> visibility for <code>crypto_*</code> symbols.
Use <code>ASM_HIDDEN</code> in more <code>.S</code> files.</p>
<p>Use <code>.note.GNU-stack</code> more.</p>
<p>Handle <code>checkinsns</code> etc. on shared directories.</p>
<p>Move <code>cat result-impl</code> to <code>default</code> for better visibility.</p>
<p>Recognize <code>sun4v</code> as <code>sparc64</code>.</p>
<p>For <code>donna_c64</code>:
Change <code>uint128_t</code> to <code>my_uint128_t</code>;
switch from mode <code>TI</code> to <code>unsigned __int128</code>;
import load/store fixes from upstream;
compile only for 64-bit architectures.</p>
<p>Handle <code>implarchreq</code> better in <code>configure</code>.</p>
<p>Make <code>dispatch/ifunc.do</code> work with <code>configure --noclean</code>.</p>
<p>Add <code>note.GNU-stack</code> to assembly.</p>
<p>Sort directory order in <code>scripts-build/ofiles</code>.
Thanks to Jan Mojzis.</p>
<p>For <code>use-s2n-bignum</code>,
insist locally on precomputed SHA-256 checksums.</p>
<p><a href="lib25519-20240321.tar.gz"><code>lib25519-20240321.tar.gz</code></a> <a href="lib25519-20240321.html">browse</a></p>
<p>Add <code>./use-s2n-bignum</code> compile-time option,
along with lib25519+s2n benchmarks and separate s2n-bignum benchmarks.</p>
<p>Speed up <code>amd64-{maa4,maax,mxaa}</code> for <code>nP</code>, <code>nG</code>, <code>mGnP</code>.
Add <code>amd64-avx512-8x1-ns10l-maax</code> for <code>nP</code>.</p>
<p>Add initial code for 64-bit ARM.</p>
<p>MacOS X port: <code>dylib</code>; deal with <code>s</code> and <code>S</code> in <code>checknamespace</code>;
use <code>-flat_namespace</code> so <code>lib25519-test</code> can substitute <code>randombytes</code>;
add <code>crypto_asm_rodata.h</code> abstraction;
expand <code>#define</code> for assembly to eliminate semicolons.</p>
<p>Add benchmarks for more platforms.</p>
<p>Support empty compiler lists.</p>
<p>Improve selection for Zen 2, Zen 3, and Golden Cove.</p>
<p>Add background colors to speed table.</p>
<p>Improve HTML formatting for code.</p>
<p>Add NGI0 information.</p>
<p><a href="lib25519-20230630.tar.gz"><code>lib25519-20230630.tar.gz</code></a> <a href="lib25519-20230630.html">browse</a></p>
<p>Add <code>powbatch</code>, <code>nPbatch</code>, and <code>multiscalar</code> APIs
with various implementations for basic amd64, BMI, ADX, AVX2, and AVX-512,
plus portable implementations.</p>
<p>Include benchmarks on more microarchitectures.
Add auto-generated table in documentation
summarizing <a href="speed.html">speeds</a>,
with OpenSSL speeds as a baseline for comparison.</p>
<p>For compatibility with musl etc.,
support <code>constructor</code> as an alternative to <code>ifunc</code> for dispatch.
Select <code>constructor</code> automatically if an <code>ifunc</code> compile-time test fails,
or if <code>--notryifunc</code> is passed to <code>./configure</code>.</p>
<p>Add command-line interface for shell scripts.</p>
<p>Rely on separate <a href="https://cpucycles.cr.yp.to">libcpucycles</a>
to automatically use RDPMC etc.,
and separate <a href="https://randombytes.cr.yp.to">librandombytes</a>
to automatically use <code>getrandom</code> etc.</p>
<p>Reorganize documentation into <code>doc/*.md</code> directory,
with auto-generation of HTML and manual pages.</p>
<p>Inside auto-generation of <code>command/lib25519-test.c</code>,
automatically cache Python computations of nP etc.</p>
<p>Reorganize precomputed tests to handle APIs with variable-length inputs and outputs.</p>
<p>Import infrastructure improvements from libmceliece.</p>
<p><a href="lib25519-20221222.tar.gz"><code>lib25519-20221222.tar.gz</code></a> <a href="lib25519-20221222.html">browse</a></p>
<p><a href="lib25519-20220726.tar.gz"><code>lib25519-20220726.tar.gz</code></a> <a href="lib25519-20220726.html">browse</a></p>
<p><a href="lib25519-20220426.tar.gz"><code>lib25519-20220426.tar.gz</code></a> <a href="lib25519-20220426.html">browse</a></p><hr><font size=1><b>Version:</b>
This is version 2024.10.04 of the "Download" web page.
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