Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers

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Openwall software releases and other related files are also available from the Openwall file archive and its mirrors. You are encouraged to use the mirrors, but be sure to verify the signatures on software you download.

The more experienced users and software developers may use our CVSweb server to browse through the source code for most pieces of Openwall software along with revision history information for each source file.

We publish articles, make presentations, and offer professional services.

We also maintain a wordlists collection for use with password crackers such as John the Ripper and with password recovery utilities, and a collection of pointers to password recovery resources on the Net.

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August 31, 2014
Our Passwords^14, Skytalks, and WOOT '14 presentation slides are now available online: Energy-efficient bcrypt cracking by Katja Malvoni, Solar Designer, and Josip Knezovic. This reflects progress made at this research project since we presented it last year.

May 23, 2014
Solar Designer's PHDays 2014 presentation slides are now available online: yescrypt - password hashing scalable beyond bcrypt and scrypt.

December 2, 2013
Our PasswordsCon Bergen presentation slides are now available online: Energy-efficient bcrypt cracking by Katja Malvoni and Solar Designer.

November 4, 2013
We've just turned our php_mt_seed PHP mt_rand() seed cracker from a proof-of-concept into a maintained project with its own homepage. Changes implemented in October include AVX2 and Intel MIC (Xeon Phi) support, as well as support for advanced invocation modes, which allow matching of multiple, non-first, and/or inexact mt_rand() outputs to possible seed values.

October 25, 2013
HPC Village is our new project, initially setup as a creative way to indirectly sponsor the upcoming ZeroNights 2013 convention in Moscow, Russia. This is an opportunity for HPC (High Performance Computing) hobbyists alike to program for a heterogeneous HPC platform. Participants are provided with remote access to a server with multi-core CPUs and HPC accelerator cards of different kinds - Intel MIC (Xeon Phi), AMD GPU, NVIDIA GPU. Please refer to the HPC Village project web page for a lot more detail, including for information on how to apply for an account.

October 21, 2013
Minor updates to scanlogd, popa3d, and msulogin have been released.

August 15, 2013
We've just posted online our USENIX WOOT '13 slides and paper entitled "Looking inside the (Drop) box" (Security Analysis of Dropbox), by Dhiru Kholia and Przemyslaw Wegrzyn.

May 30, 2013
John the Ripper 1.8.0 is out, including new functionality sponsored under Rapid7's Magnificent7 program.

April 24, 2013
A new version of our password/passphrase strength checking and enforcement tool set, passwdqc 1.3.0, is out.

April 11, 2013
We're a mentoring organization for Google Summer of Code 2013. Here are our proposed ideas for students' summer projects.

New snapshots of Owl-current and Owl 3.0-stable are available, including ISO images, OpenVZ container templates, binary packages for i686 and x86_64, and full sources.

News archive (since 2001)

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