To download and unpack the latest version of lib25519:

        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

Then [install](install.html).

### Archives and changelog (reverse chronological) {#changelog}

[`lib25519-20230630.tar.gz`](lib25519-20230630.tar.gz) [browse](lib25519-20230630.html)

Add `powbatch`, `nPbatch`, and `multiscalar` APIs
with various implementations for basic amd64, BMI, ADX, AVX2, and AVX-512,
plus portable implementations.

Include benchmarks on more microarchitectures.
Add auto-generated table in documentation
summarizing [speeds](speed.html),
with OpenSSL speeds as a baseline for comparison.

For compatibility with musl etc.,
support `constructor` as an alternative to `ifunc` for dispatch.
Select `constructor` automatically if an `ifunc` compile-time test fails,
or if `--notryifunc` is passed to `./configure`.

Add command-line interface for shell scripts.

Rely on separate [libcpucycles](https://cpucycles.cr.yp.to)
to automatically use RDPMC etc.,
and separate [librandombytes](https://randombytes.cr.yp.to)
to automatically use `getrandom` etc.

Reorganize documentation into `doc/*.md` directory,
with auto-generation of HTML and manual pages.

Inside auto-generation of `command/lib25519-test.c`,
automatically cache Python computations of nP etc.

Reorganize precomputed tests to handle APIs with variable-length inputs and outputs.

Import infrastructure improvements from libmceliece.

[`lib25519-20221222.tar.gz`](lib25519-20221222.tar.gz) [browse](lib25519-20221222.html)

[`lib25519-20220726.tar.gz`](lib25519-20220726.tar.gz) [browse](lib25519-20220726.html)

[`lib25519-20220426.tar.gz`](lib25519-20220426.tar.gz) [browse](lib25519-20220426.html)