Operating Systems

    • Kali Linux: OS based on debian containing all the most famous packages for penetration testing
    • OpenBSD: OS developed with security as focal point. Certainly the most secure OS in the world today. Only two remote holes in the default install in more than 10 years


    • GnuPG: also named GPG, allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories
    • Aircrack-ng: WEP and WPA-PSK keys cracking
    • John the Ripper: password cracking tool
    • Snort Open Source Intrusion Prevention System (IPS)
    • OSSEC Server Intrusion Detection
    • Lynx: Text browser using through cli
    • PassGAN : password cracking using machine learning outperforming John The Ripper - research paper


    • LibreSSL: is a version of the TLS/crypto stack forked from OpenSSL in 2014, with goals of modernizing the codebase, improving security, and applying best practice development processes
    • libgcrypt: an encryption library used by GnuPG
    • libtomcrypt: another well maintained encryption library written in C

    Note: See comparison


    • Noise Protocol Framework: framework for building crypto protocols. Noise protocols support mutual and optional authentication, identity hiding, forward secrecy, zero round-trip encryption, and other advanced features. used by WireGuard, Lightning


    • MNT Reform computer The open source DIY laptop for hacking, customization, and privacy (and open hardware)
    • Librem 13: A computer security oriented from the hardware to the software
    • Librem 5: A security and privacy focused phone no android it will be based on a GNU distribution (debian, fedora, PureOS, etc...) funding page
    • Novena: Open Hardware computer crowd link
    • Turris Omnia: open source hardware router based on open source OS OpenWRT
    • USB Armory: an open source hardware and software computer on USB stick
    • NitroKey: open hard & soft usb id manager.


    • TOC - CIS: Cryptography and Information Security (CIS) group was founded by Professors Shafi Goldwasser, Silvio Micali, and Ron Rivest in the Fall of 1995

    Key People

    • Werner Koch: Principal author and maintainer of GnuPG. Also developer of libgcrypt library.
    • Theo de Raadt: Founder and leader of OpenBSD and OpenSSH
    • Bruce Schneier: CTO of IBM, writting a lot about security
    • Thomas Pornin: Security Architect of Desjardin, designed a lot of algorithm, study them, and develop some (Makwa)
    • Reyk Floter: Rust and C, sprinkled with some infosec. Former OpenBSD hacker.
    • r00t-3xp10it
    • Andrea Barisani: Head of Hardware Security F-Secure and Founder of inversepath