GNU Libtasn1 2.5

Simon Josefsson simon at
Mon Mar 15 14:44:25 CET 2010

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

* Noteworthy changes in release 2.5 (2010-03-15) [stable]
- doc: Improve GTK-DOC comments.
- misc: Updated gnulib files.


Here are the compressed sources (1.7MB):

Here are GPG detached signatures using key 0xB565716F:

A ZIP archive containing the Windows binaries (264KB):

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

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:

All manuals are available from:

Specifically, the following formats are available.

The main manual:

API Reference manual: - GTK-DOC HTML

For developers interested in improving code quality, we publish
Cyclomatic code complexity charts that help you find code that may need
review and improvements:

Also useful are code coverage charts which indicate parts of the source
code that needs to be tested better by the included self-tests:

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

pub   1280R/B565716F 2002-05-05 [expires: 2011-03-30]
      Key fingerprint = 0424 D4EE 81A0 E3D1 19C6  F835 EDA2 1E94 B565 716F
uid                  Simon Josefsson <jas at>
uid                  Simon Josefsson <simon at>
sub   1280R/4D5D40AE 2002-05-05 [expires: 2011-03-30]

The key is available from:

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

e317282a86702fb57133b50199df47a7fcf681ca  libtasn1-2.5.tar.gz
69e53bb61f3512aa8d1eb72640778b4adebf6818a4493548cc7faf2d  libtasn1-2.5.tar.gz


a5427f26d051a3ab30a8f5bea0abcdf6d3d83f0f  mingw32-libtasn1_2.5-1_all.deb
6e781ec4652f8d3fd58e3742dd19f69804665356c11c50e179ed1756  mingw32-libtasn1_2.5-1_all.deb

Happy hacking,
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