There are many similar instant messaging systems, and each person can only handle so many of them. And they don’t talk to each other. So if you’re in touch with two people who use Signal and another three use Wire and you want to chat with all five of them, how do you do it? Email has the advantage of universal interoperability.
Email are interoperable because there is well-documented standard behind it. And it is federated.
XMPP is well-documented and federated too.
The collapse of domain fronting means that some network operators can, and do, block Signal, Telegram, and other centralized messaging services like them. People stuck behind those networks simply can’t use these tools at all.
Domain fronting is required because Signal is centralized. In a federated network, one has to block all possible communication channels between two arbitrary people. It is much harder to block a federated network unless you are willing to maintain a whitelist.
Some people can only be contacted by email and have no public Signal number. For example, the EFF’s contact page lists email addresses (with PGP fingerprints) and office phone numbers, but no Signal numbers. If I’ve switched off end-to-end email security in favor of Signal, how am I supposed to communicate with the EFF securely?
That’s bad practice from EFF. Not a first. But it cannot be attributed to Signal.
Signal requires registration to a phone number. Not everyone has a phone number, knows the phone number of the person they want to contact, or is willing to share their phone number with other people.
XMPP uses arbitrary identifiers. Phone numbers are possibly sensitive and allow som eattackers to track people geolocation. Phone numbers are bad. Arbitrary identifiers are good. This has been discussed at the last CCC conference as well.
Some versions of the Signal app have similar problems to those outlined in EFail.
No, they don’t have similar problems, except if the “similar problems” are “having a vulnerability”. This is bad phrasing. Signal has many problems but none that are as bad as emails.
My advice, as always, is: use XMPP with OMEMO. There are Windows, GNU/Linux, Mac, Android and iOS clients. You can have a free account at ▻https://jabber.lqdn.fr or a paying one at conversations.im. Conversations for Android has excellent ideas regarding seamless secure communication. More on that here: ▻https://www.ssi.gouv.fr/publication/chiffrement-de-messagerie-quasi-instantanee-a-quel-protocole-se-vouer
Projection analysis - detectproj
Automated estimation of the map projection and its parameters based on the non-linear optimization...
Designed for cartographers as well as for enthusiasts.
GNU/GPL projection analysis software for Windows ® 7/8/8.1/10, GNU/Linux and MacOS.
GameShell, Open Source Retro Gaming & STEM Console | Indiegogo
GameShell is the world’s first modular, portable game console with a GNU/LINUX embedded operating system. It allows you to play thousands of classic games from Atari, GB, GBA, NES, SNES and many of history’s greatest consoles.
GameShell supports programming languages like preset C, Python, Lua, and LISP. You will be able to modify games and even create new ones as you wish.
Linux on Galaxy : Samsung fait tourner GNU/Linux sur les Note 8 et S8/S8+
Install and Use GNU Command Line Tools on macOS/OS X - Top Bug Net
If you are moving onto macOS/OS X from GNU/Linux, you would probably find out that the command line tools shipped with OS X are not as powerful and easy to use as the tools in Linux. The reason is that macOS/Mac OS X uses the BSD version command line tools, which are different from the Linux version, while they are both compliant with POSIX standards. But we can easily install the GNU command line tools by using Homebrew in Mac OS X and set them as default.
Je serais juste un peu prudent avec l’option
--default-names qu’ils utilisent : avec ça les outils GNU remplacent ceux de BSD au lieu de les installer avec un ’g’ devant.
Ça pourrait casser des scripts OSX existant.
Ed Snowden taught me to smuggle secrets past incredible danger. Now I teach you.
(Micah Lee, Oct 2014)
– Explains how Poitras and Snowden set up a secure communication channel using anonymous e-mail, Tor Browser, GPG, and tweeting the figerprint.
– Explains how he got Greenwald to encrypt his computer. (Greenwald didn’t know how to nor how to use GPG, and got neither of them working)
– Talks about his involvement in the set-up of communications between Snowden, Greenwald and Poitras prior to the revelations.
I think it’s helpful to show how privacy technologists can work with sources and journalists to make it possible for leaks to happen in a secure way. Securing those types of interactions is part of my job now that I work with Greenwald and Poitras at The Intercept, but there are common techniques and general principles from my interactions with Snowden that could serve as lessons to people outside this organization.
but in his first email to me, Snowden had forgotten to attach his key, which meant I could not encrypt my response. I had to send him an unencrypted email asking for his key first. His oversight was of no security consequence—it didn’t compromise his identity in any way—but it goes to show how an encryption system that requires users to take specific and frequent actions almost guarantees mistakes will be made, even by the best users.
after creating a customized version of Tails for Greenwald, I hopped on my bike and pedaled to the FedEx office on Shattuck Avenue in Berkeley, where I slipped the Tails thumb drive into a shipping package, filled out a customs form that asked about the contents (“Flash Drive Gift,” I wrote), and sent it to Greenwald in Brazil.
The (comprehensive) 30-page tutorial Micah wrote about using open source tools to communicate securely:
Encryption Works: How to Protect Your Privacy (And Your Sources) in the Age of NSA Surveillance
The whitepaper covers:
– A brief primer on cryptography, and why it can be trustworthy
– The security problems with software, and which software you can trust
– How Tor can be used to anonymize your location, and the problems Tor has when facing global adversaries
– How the Off-the-Record (OTR) instant message encryption protocol works and how to use it
– How PGP email encryption works and best practices
– How the Tails live GNU/Linux distribution can be used to ensure high endpoint security
HTML version: ▻https://web.archive.org/web/20130727195447/https://pressfreedomfoundation.org/encryption-works
OpenMandriva LX3 – what is there? Why to choose exactly it?…
Why should you use the OpenMandriva Lx 3 GNU/Linux distribution? Here’s a short list: OpenMandriva Lx 3…. a cut above the rest 1.User friendly Easy to use installer (▻https://calamares.io) 2. Software Built with LLVM/clang for a smaller memory footprint, increased speed and better maintainability * Kernel nrjQL gives you a combination of flexibility … Continue reading »
This is a selective guide to Unicode-based fonts and script projects that are ideal for free/libre/open source (FLOSS) operating systems like GNU/Linux and FreeBSD. As a general policy, I include here only fonts that:
Contain Unicode CMAPs for mapping Unicode values to glyphs.
Can be downloaded and used legally for free.
Preference is given to high-quality vector fonts that have been released under SIL International’s Open Font License (OFL), the Free Software Foundation’s GNU General Public License (GPL), and similarly open licenses. I also include other important Unicode fonts, including a few notable shareware fonts where the authors request payment of a fee after an initial free evaluation. Although this document focuses on vector fonts that work well on free operating systems, these fonts will also work well on Unicode-capable Windows operating systems (Windows 2000 and XP) and on Apple OSX.
“Encrypted virtual servers and web hosting based in #Iceland \ Locating in Reykjavík, Iceland, is an easy way to reduce your carbon footprint — the Icelandic grid is powered by 99% green electricity. Ecological and Dissident Hosting, a service provided by Webarchitects, in partnership with 1984.is, offers green encrypted GNU/Linux Virtual Servers and Website Hosting.”
OpenStreetMap Moves Beyond The Streets, Starts Mapping Amazonia | Techdirt
OpenStreetMap Moves Beyond The Streets, Starts Mapping Amazonia
from the boldly-going dept
OpenStreetMap is fast-emerging as one of the key open projects — so much so, that proprietary rivals in the world of digital maps are evidently getting worried. Just as the LAMP stack — GNU/Linux, Apache, MySQL and Perl/PHP/Python — provided a robust and free foundation for a whole generation of websites a decade and a half ago, so OpenStreetMap is becoming more widely adopted as part of the mobile web, and as geodata grows in importance for a new generation of software applications aimed at users on the move.
» Linuxaria – Everything about GNU/Linux and Open source Uniq, comm and join 3 Linux command for the CLI
Uniq, comm and join 3 Linux command for the CLI
OpenMandriva Lx is an exciting free Desktop #Operating_System based on #GNU/Linux that aims to cater to and interest first time and advanced users alike. It has the breadth and depth of an advanced system but is designed to be simple and straightforward in use.
Lx comes from a 100% community-driven association that believes in the values of free software & collaboration and whose founding values are development, equality, co-operation, openness, freedom, group achievement, independence, and solidarity.
Our team is also a proud user of #Spip technology.
This project provides virtual machines for Sun XVM VirtualBox® sporting several free and/or open-source operating systems, such as GNU/Linux or Free/Net/OpenBSD for testing, security and/or entertainment purposes.
pratique ! par contre pour installer OS X c’est galère
Creating a bootable El Capitan ISO image
The GNUmed project builds free, liberated open source Electronic Medical Record software in multiple languages to assist and improve longitudinal care (specifically in ambulatory settings, i.e. multi-professional practices and clinics).
It is made available at no charge and is capable of running on GNU/Linux, Windows and Mac OS X. It is developed by a handful of medical doctors and programmers from all over the world.