This is to announce libtasn1-4.20.0, a stable release. There have been 101 commits by 2 people in the 127 weeks since 4.19.0.
See the NEWS below for a brief summary.
Thanks to everyone who has contributed!
The following people contributed changes to this release:
Daiki Ueno (6)
Simon Josefsson (95)
Simon
[on behalf of the libtasn1 maintainers]
==================================================================
Here is the GNU libtasn1 home page:
https://gnu.org/s/libtasn1/
Here are the compressed sources and a GPG detached signature:
https://ftp.gnu.org/gnu/libtasn1/libtasn1-4.20.0.tar.gz
https://ftp.gnu.org/gnu/libtasn1/libtasn1-4.20.0.tar.gz.sig
Here is minimal source-only "git archive" sources:
https://ftp.gnu.org/gnu/libtasn1/libtasn1-v4.20.0-src.tar.gz
https://ftp.gnu.org/gnu/libtasn1/libtasn1-v4.20.0-src.tar.gz.sig
Here are Sigsum Proofs:
https://ftp.gnu.org/gnu/libtasn1/libtasn1-4.20.0.tar.gz.proof
https://ftp.gnu.org/gnu/libtasn1/libtasn1-v4.20.0-src.tar.gz.proof
Use a mirror for higher download bandwidth:
https://www.gnu.org/order/ftp.html
Here are the SHA1 and SHA256 checksums:
ef6a358e16e056476b4be121ed2fb2ce11d791ed libtasn1-4.20.0.tar.gz
kuDjvUwC1K7udgNrLd2D8McyukzaXLcdWDJysjWHp2w= libtasn1-4.20.0.tar.gz
99a90d178b5c9ced099ec0039b41d8d67cdede99 libtasn1-v4.20.0-src.tar.gz
47y9GZy7b2wyv+WziXEa8xhMTZL5evK0u1CgrnvVLaY= libtasn1-v4.20.0-src.tar.gz
Verify the base64 SHA256 checksum with cksum -a sha256 --check
from coreutils-9.2 or OpenBSD's cksum since 2007.
Use a .sig file to verify that the corresponding file (without the
.sig suffix) is intact. First, be sure to download both the .sig file
and the corresponding tarball. Then, run a command like this:
gpg --verify libtasn1-4.20.0.tar.gz.sig
The signature should match the fingerprint of the following key:
pub ed25519 2019-03-20 [SC]
B1D2 BD13 75BE CB78 4CF4 F8C4 D73C F638 C53C 06BE
uid Simon Josefsson <si...@josefsson.org>
If that command fails because you don't have the required public key,
or that public key has expired, try the following commands to retrieve
or refresh it, and then rerun the 'gpg --verify' command.
gpg --locate-external-key si...@josefsson.org
gpg --recv-keys 51722B08FE4745A2
wget -q -O-
'https://savannah.gnu.org/project/release-gpgkeys.php?group=libtasn1&download=1'
| gpg --import -
As a last resort to find the key, you can try the official GNU
keyring:
wget -q https://ftp.gnu.org/gnu/gnu-keyring.gpg
gpg --keyring gnu-keyring.gpg --verify libtasn1-4.20.0.tar.gz.sig
Use the .proof files to verify the Sigsum proof. These files are like
signatures but with extra transparency: you can cryptographically verify
that every signature is logged in a public append-only log, so you can
say with confidence what signatures exists. This makes hidden releases
no longer deniable for the same public key.
Releases are Sigsum-signed with the following public key:
cat <<EOF > libtasn1-sigsum-key.pub
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILzCFcHHrKzVSPDDarZPYqn89H5TPaxwcORgRg+4DagE
EOF
Run a command like this to verify downloaded artifacts:
wget -q -Otrust.txt https://gnu.org/s/libtasn1/sigsum-policy.txt
sigsum-verify -k libtasn1-sigsum-key.pub -p trust.txt \
libtasn1-4.20.0.tar.gz.proof < libtasn1-4.20.0.tar.gz
You may learn more about Sigsum concepts and find instructions how to
download the tools here: https://www.sigsum.org/getting-started/
This release is based on the libtasn1 git repository, available as
git clone https://gitlab.com/gnutls/libtasn1.git
with commit 6b45b25e94ea538192cc0f97e9ad57171d1c6374 tagged as v4.20.0.
For a summary of changes and contributors, see:
https://gitlab.com/gnutls/libtasn1/-/commits/v4.20.0
or run this command from a git-cloned libtasn1 directory:
git shortlog v4.19.0..v4.20.0
This release was bootstrapped with the following tools:
Gnulib 2025-02-01 c89cd2fbd3b9f3d7c5a146247256599714c91ec7
Autoconf 2.71
Automake 1.16.5
Libtoolize 2.4.7
Make 4.3
Makeinfo 7.1.1
Bison 3.8.2
Help2man 1.49.2
Gtkdocize 1.33.1
Tar 1.34
Gzip 1.13
Guix d48da2d21610f9cf5f76cd846703b12beedb1fd5
NEWS
* Noteworthy changes in release 4.20.0 (2025-02-01) [stable]
- The release tarball is now reproducible.
- We publish a minimal source-only tarball generated by 'git archive'.
- Update gnulib files and various build/maintenance fixes.
- Fix CVE-2024-12133: Potential DoS in handling of numerous SEQUENCE OF or SET
OF elements
Happy hacking,
Simon
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