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ANNOUNCE: Nettle-3.10

From: Niels Möller
Subject: ANNOUNCE: Nettle-3.10
Date: Sun, 16 Jun 2024 21:03:17 +0200
User-agent: Gnus/5.13 (Gnus v5.13)

I'm happy to announce a new release of GNU Nettle, a low-level
cryptographics library. This release adds support for RSA-OAEP, and
improves performance mainly for powerpc64. See NEWS entries below.

The Nettle home page can be found at, and the manual at

The release can be downloaded from

Happy hacking,
/Niels Möller

NEWS for the Nettle 3.10 release

        This is a maintenance release, including a few each of bug
        fixes, new features and optimizations.

        The new version is intended to be fully source and binary
        compatible with Nettle-3.6. The shared library names are and, with sonames and

        Bug fixes:

        * Add missing hash functions sha512_224 and sha512_256 to the
          nettle_get_hashes() list. The name values in the
          corresponding nettle_hash structs also changed to use
          underscore instead of dash, for consistency.

        * Fix a few cases of formally undefined calls to memcpy(dst,
          NULL, 0), resulting from valid calls to, e.g.,
          sha256_update(ctx, 0, NULL).

        New features:

        * Support RSA-OAEP encryption. Contributed by Nicolas Mora and
          Daiki Ueno.

        * New function sha3_256_shake_output, new functions
          sha3_128_init, sha3_128_update, sha3_128_shake,
          sha3_128_shake_output. Contributed by Daiki Ueno.

        * Added DRBG-CTR with AES256, contributed by Simon Josefsson.


        * New combined gcm-aes assembly for powerpc64, contributed by
          Danny Tsen.

        * New sha256 assembly for powerpc64, contributed by Eric

        * Improved performance for powerpc64 AES decrypt, by skipping
          subkey transformations that don't suit the vncipher

        * Add arm64 CPU feature detection for Android and for Apple systems,
          contributed by Foolbar and Tim Kosse, prespectively.


        * New tests for side-channel silence, based on valgrind.

        * Delete all md5 assembly code. Delete all sparc32 assembly code.

Niels Möller. PGP key CB4962D070D77D7FCB8BA36271D8F1FF368C6677.
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