GnuPG is a tool for secure communication. This chapter is a quick-start guide that covers the core functionality of GnuPG. This includes keypair creation, exchanging and verifying keys, encrypting and decrypting documents, and authenticating documents with digital signatures. It does not explain in detail the concepts behind public-key cryptography, encryption, and digital signatures. This is covered in Chapter 2. It also does not explain how to use GnuPG wisely. This is covered in Chapters 3 and 4.
GnuPG uses public-key cryptography so that users may communicate securely. In a public-key system, each user has a pair of keys consisting of a private key and a public key. A user's private key is kept secret; it need never be revealed. The public key may be given to anyone with whom the user wants to communicate. GnuPG uses a somewhat more sophisticated scheme in which a user has a primary keypair and then zero or more additional subordinate keypairs. The primary and subordinate keypairs are bundled to facilitate key management and the bundle can often be considered simply as one keypair.
PNG, JPG & SVG
PNG & SVG
Info page: 10.1.5 Formatting file timestamps
alias ls='ls --time-style="long-iso"' # Shows no seconds
alias ls='ls --time-style="%F %T"' # Shows seconds... und/oder im shell profile script:
export TIME_STYLE='+%F %T'Jami is a free and universal communication platform which preserves the user's privacy and freedoms.
Pleroma is a free, federated social networking server built on open protocols. It is compatible with GNU Social, Mastodon, and many other ActivityPub and OStatus implementations.
The project consists of several components: Pleroma is the server implementation, and comes bundled with PleromaFE, the default frontend. Other useful utilities are also provided, such as an ActivityPub relay.
- Liberating. The Guix System Distribution (GuixSD) is an advanced distribution of the GNU operating system developed by the GNU Project—which respects the freedom of computer users.
- Dependable. It comes with the GNU Guix package manager, which in addition to standard package management features, supports transactional upgrades and roll-backs, unprivileged package management, per-user profiles, and more.
- Hackable. It provides Guile Scheme APIs, including high-level embedded domain-specific languages (EDSLs) to define packages and whole-system configurations.
About a week ago many users may have noticed instability on our hosted ZeroTier Central. Network controllers would flicker on and off, and eventually the whole service needed to be restarted across our cluster. 500 errors and timeouts were a thing.
Taler ist ein neues elektronisches Zahlungssystem, welches bei Inria entwickelt wird. Zum heutigen Tag zeigt diese Seite die Vorteile unseres Systems auf. Im Laufe des Jahres 2015 sollen mehr Code sowie zusätzliche Dokumentation öffentlich gemacht werden. Voraussichtlicher Startpunkt des Zahlungssystems für den allgemeinen Gebrauch ist das Jahr 2016.
Modular visual interface for GDB in Python.
This comes as a standalone single-file .gdbinit which, among the other things, enables a configurable dashboard showing the most relevant information during the program execution. Its main goal is to reduce the number of GDB commands issued to inspect the current program status allowing the programmer to focus on the control flow instead.
NUnet is a framework for secure peer-to-peer networking that does not use any centralized or otherwise trusted services. Our high-level goal is to provide a strong free software foundation for a global network that provides security and in particular respects privacy.
GNUnet started with an idea for anonymous censorship-resistant file-sharing, but has grown to incorporate other applications as well as many generic building blocks for secure networking applications. In particular, GNUnet now includes the GNU Name System, a privacy-preserving, decentralized public key infrastructure.
First, in addition to the GNUnet sources you must download the latest version of various dependencies. Most distributions do not include sufficiently recent versions of these dependencies. Thus, a typically installation on a "modern" GNU/Linux distribution requires you to install the following dependencies (ideally in this order):