GNU Libtasn1 2.3

Simon Josefsson simon at
Wed Jul 29 22:43:16 CEST 2009

I'm happy to announce the first release of Libtasn1 as an official GNU

GNU Libtasn1 is a standalone library written in C for manipulating ASN.1
objects including DER/BER encoding/decoding.  Libtasn1 is used by GnuTLS
to parse and generate X.509 structures and by Shishi to parse and
generate Kerberos V5 structures.

* Noteworthy changes in release 2.3 (2009-07-29) [stable]
- Libtasn1 is now an official GNU project.
- Solve build problem on Tru64 related to TRUE/FALSE.
- More careful decoding of OIDs.
- Fixed warning in ASN1.y.
- Use "Software libraries" info dircategory.
- Drop GPL/LGPL copies from the manual (not needed there).
- New configure parameters to set packaging specific information.
  The parameters are --with-packager, --with-packager-version, and
  --with-packager-bug-reports.  See
  <> for more

Commercial support contracts for Libtasn1 are available, and they help
finance continued maintenance.  Simon Josefsson Datakonsult AB, a
Stockholm based privately held company, is currently funding Libtasn1
maintenance.  We are always looking for interesting development
projects.  See for more details.

If you need help to use Libtasn1, or want to help others, you are
invited to join the help-gnutls mailing list, see:


Here are the compressed sources (1.5MB):

Here are GPG detached signatures using key 0xB565716F:

A ZIP archive containing the Windows binaries (268KB):

A Debian mingw32 package is also available (240KB):

The software is cryptographically signed by the author using an
OpenPGP key identified by the following information:

pub   1280R/B565716F 2002-05-05 [expires: 2010-04-21]
      Key fingerprint = 0424 D4EE 81A0 E3D1 19C6  F835 EDA2 1E94 B565 716F
uid                  Simon Josefsson <simon at>
uid                  Simon Josefsson <jas at>
sub   1280R/4D5D40AE 2002-05-05 [expires: 2010-04-21]

The key is available from:

Here are the SHA-1 and SHA-224 checksums:

71607f846e83849f0722ffdd93247028c9c88384  libtasn1-2.3.tar.gz

0dc935133aa110fc17e0c212ca3c9b446f3da37e5e51ea1c8561c3ec  libtasn1-2.3.tar.gz



461ed2aa187cc86780ca0155b08be05401f9a403  mingw32-libtasn1_2.3-1_all.deb

425d98c7b456d120bf103a0fef59eff55f3694a9682ee0bd3240289d  mingw32-libtasn1_2.3-1_all.deb

Happy hacking,
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