Unix History Repository

The goal of this project is to create a git repository representing the Unix source code history, starting from the 1970s and ending in the modern time. To fulfill this goal the project brings data from early snapshots, repositories, and primary research. The project aims to put in the repository as much metadata as possible, allowing the automated analysis of Unix history.

Created by Diomidis Spinellis.

MTKBabel is a Perl program to operate the i-Blue 747 GPS data logger. It should work also with other GPS devices based on the MediaTek MTK chipset. Starting with version 0.7 it offers also support for the Holux M-241 data logger. It is free software released under the GPL license.

Link to an interesting networking library.

TrueCrypt will not die

TrueCrypt.ch is the gathering place for all up-to-date information.  Unfortunately TrueCrypt.org is dead. But, we (the pure-privacy people) will help organize a future.

Plan9port, a port of many Plan 9 user programs to Unix used to live on
http://swtch.com/plan9port/, but since 2014-11-17 it has been moved to this git repository.

Rtl_power is a unix-hacker's approach to the waterfall. Its unique features include:
- Unlimited frequency range. You can do the whole 1.7GHz of a dongle.
- Unlimited time. At least until you run out of disk for logging.
- Unlimited FFT bins. But in practice I don't think I've taken it above 100k bins.
- Quantitative rendering. Exact power levels are logged.
- Runs on anything. A slower computer will use less samples to keep up.

The blog has a lot of other interesting articles, e.g. http://kmkeen.com/tiny-code/, http://kmkeen.com/flash-recovery/ , http://kmkeen.com/fp/ just to name a few.

Taler is a new electronic payment system under development at Inria. Today, this website only presents the advantages our system is expected to provide. We expect to make the payment system available to the general public in 2016.

Piksi a single-frequency GPS/GNSS receiver. It delivers RTK functionality for centimeter-level relative positioning in a 53x53mm form factor. The Piksi receiver supports a high-performance, onboard Digital Signal Processor (DSP) and a flexible correlation accelerator.

Features
   Centimeter-level relative positioning (RTK)
   10 Hz position/velocity/time solutions for fast updates
   Open-source software and board design (the FPGA firmware is closed source)
   Low power consumption: 500mW typical
   Small form factor:    53x53mm
   USB and dual UART connectivity
   Full-rate raw sample pass-through over USB
   3-bit, 16.368 MS/s L1 front-end supports GPS and SBAS signals

In order to factor (relatively) large semi-primes (i.e. semi-primes larger than 150-bits), you should (probably) just ask YAFU (Yet Another Factoring Utility, https://github.com/DarkenCode/yafu) to try to factor the number for you in parallel using a highly-optimized number field sieve such as GGNFS (GPL General Number Field Sieve) or SIQS (Self-Initialising Quadratic Sieve). By using YAFU I was able to factor a 302-bit semi-prime in a little over half an hour , as opposed to over the course of 72 minutes using Sage’s Quadratic Sieve (QS).

Coding style can survive compilation. Interesting study where programmers were de-anonymized with fairly high success rates from the binary code of their programs.