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ANNOUNCE: Nettle-2.5
From: |
Niels Möller |
Subject: |
ANNOUNCE: Nettle-2.5 |
Date: |
Sat, 07 Jul 2012 16:01:09 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.2 (usg-unix-v) |
I'm happy to annnounce a new version of GNU Nettle, a low-level
cryptographics library. The Nettle home page can be found at
http://www.lysator.liu.se/~nisse/nettle/.
NEWS for the 2.5 release
This release includes important portability fixes for Windows
and MacOS. There are also a few new features.
First a *warning*: Some internal functions have been removed
from the library. Since the functions in question are internal
and not documented, this is not considered a change of ABI or
API. Programs explicitly using any of these functions will
break.
* The function pkcs1_signature_prefix has been renamed to
_pkcs1_signature_prefix, and with slightly different
behavior.
* The file nettle-internal.c is no longer included in the
library (the features defined there are used by the
benchmark and test programs, and were never intended for
public use).
New features:
* Support for the salsa20 block cipher, including x86_64
assembler. Originally contributed by Simon Josefsson, based
on the reference implementation, then further optimized.
* Tentative interface for timing-resistant RSA functions,
contributed by Nikos Mavrogiannopoulos.
* A more general interface for PKCS#1 signatures, taking the
input in the form of a "DigestInfo". Suggested by Nikos
Mavrogiannopoulos.
Configuration:
* Building of shared libraries (./configure --enable-shared)
is now enabled by default.
* Various portability fixes for MacOS and M$ Windows. A lot of
this work done by Martin Storsjö.
* In particular, Nettle now hopefully works on 64-bit Windows
builds, "W64", including the x86_64 assembly code.
Miscellaneous:
* Documentation and example programs for the base16 and base64
functions. Was contributed by Jeronimo Pellegrini back in
2006, but unfortunately forgotten until now.
* Use an additional table to avoid GF2^8 multiplications in
aes_invert_key (mainly used by aes_set_decrypt_key). Also
tabulate round constants in aes_set_encrypt_key.
* The nettle repository has been migrated from cvs to git,
with a public repository at
http://git.lysator.liu.se/nettle. To make it independent of
the LSH repository, a few files have been moved around.
While at it, files have also been converted from latin-1 to
utf-8.
The libraries are intended to be binary compatible with
nettle-2.2 and later. The shared library names are
libnettle.so.4.4 and libhogweed.so.2.2, with sonames still
libnettle.so.4 and libhogweed.so.2
Available at
http://www.lysator.liu.se/~nisse/archive/nettle-2.5.tar.gz
ftp://ftp.gnu.org/gnu/nettle/nettle-2.5.tar.gz
and soon also at
ftp://ftp.lysator.liu.se/pub/security/lsh/nettle-2.5.tar.gz
Happy hacking,
/Niels Möller
--
Niels Möller. PGP-encrypted email is preferred. Keyid C0B98E26.
Internet email is subject to wholesale government surveillance.
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