Libntlm

Introduction

The old libntlm (note lower case) was a library that implement Microsoft's NTLM authentication. However, the packaging of libntlm lacked certain things, such as having build problems, lacking shared library support, lacking autoconf macro for use in other applications, lacking pkg-config support, and more. So this page distributes an improved version of the library; called Libntlm (note upper case L to differentiate it from the original libntlm). Compared to the original releases, the current version has been entirely re-written and only shares the same function interfaces.

Libntlm is licensed under the GNU Lesser General Public License version 2.1 or (at your option) any later version.

References for the NTLM protocol are:

• The NTLM Authentication Protocol, by Eric Glass.
• NTLM Authentication Scheme for HTTP, by Ronald Tschalär.

Projects using Libntlm include GNU SASL.

What's new

• 2011-06-20: Version 1.3 released. Proving the project is still alive.
• 2009-11-06: Version 1.2 released. Fixes MinGW cross-compile bug.
• 2009-05-08: Version 1.1 released. No significant changes.
• 2008-04-12: Version 1.0 released. Declared stable.
• 2008-03-05: Version 0.4.2 released. Portability fixes for big-endian platforms.
• 2008-03-05: Development (source code and web pages) moved to savannah.
• 2007-10-29: Version 0.4.1 released. Maintainance release.
• 2007-09-23: Version 0.4.0 released. Gnulib files updated, only public API is exported in shared library. Approaching a stable v1.0.
• 2007-09-23: Developed in Git instead of CVS.
• 2007-03-27: Version 0.3.13 released. Minor portability fixes, by updating from gnulib.
• 2006-06-24: Version 0.3.12 released. Minor portability fixes, by updating from gnulib.
• 2006-05-16: Version 0.3.11 released. Now works on 64-bit platforms.
• 2006-03-24: Version 0.3.10 released. Exports the ntlm_smb_encrypt and ntlm_smb_nt_encrypt APIs.
• 2005-10-23: Version 0.3.9 released. The DES and MD4 functions are now shared with gnulib, to simplify maintenance.
• 2005-09-27: Version 0.3.8 released. APIs to build requests/responses for usernames with @ in them (earlier an @ was used to separate the username from the realm). Build fixes.
• 2005-07-15: Version 0.3.7 released. A spec file was added. Compiler warnings fixed, thanks to Frediano Ziglio. Gnulib is used, currently only for a more robust ntlm_check_version.
• 2004-09-30: Version 0.3.6 released. Various cleanups, thanks to Frediano Ziglio.
• 2004-09-23: Version 0.3.5 released. Ported to many platforms.
• 2004-09-23: Version 0.3.4 released. License changed to LGPL, thanks to rewrites by Frediano Ziglio.
• 2004-09-18: Version 0.3.3 released. Use of 'const' in function prototypes. Source code indented according to GNU Coding Standard.
• 2003-03-17: Version 0.3.2 released. Only build changes.
• 2002-10-17: Version 0.3.1 released. No code changes, but uses automake 1.7, gnits and pkg-config.
• 2002-10-04: Anonymous CVS is available via pserver.
• 2002-10-01: Version 0.3.0 released. No code changes compared to the last official 0.21 release.

Download

The releases are distributed from release directory.

All releases are signed with an OpenPGP key with fingerprint 0xB565716F.

Free support

A mailing list where Libntlm users may help each other exists, and you can reach it by sending e-mail to libntlm@nongnu.org. Archives of the mailing list discussions, and an interface to manage subscriptions, is available through the World Wide Web at http://lists.nongnu.org/mailman/listinfo/libntlm.

There is also the Libntlm project page at Savannah that provide a bug tracker and more.

Paid support

If you are interested in paid support of Libntlm please contact me.

This work is sponsored by Simon Josefsson Datakonsult AB. If you find my work in this area useful, also please consider making a donation. No amount is too small!

Development

There is a Savannah Libntlm project page. You can check out the sources by using git as follows:

$ git clone git://git.savannah.nongnu.org/libntlm.git

The online git interface is available.

If you have trouble using git, you may download a daily snapshot. The snapshots are prepared similar to regular releases, i.e., you simply build them using ./configure && make.

Build logs from building the package, where you can also contribute a build system for your own platform, are available from the Libntlm autobuild page.