Video: Data Protection Day: "After Snowden: using law and technology to counter snooping"

On the occasion of Data Protection Day, Pieter Omtzigt invited Jacob Appelbaum, Douwe Korff and Christian Grothoff to testify on "using law and technology to counter snooping" at the Counsil of Europe (CoE). Peter Omtzigt is rapporteur for a report on "Massive eavesdropping in Europe".

Video: 30c3 talk on "The GNU Name System"

Here is the video of my talk (with help from Florian Dold) at 30c3 on "The GNU Name System". Sadly, the "Secure Name Systems" panel at the same venue was not recorded.

Typo-Protected Public Keys

When users type in public keys (such as the 53-characters of a GNS zone), they might make typos. The usual way to fix typos is to add a checksum, further increasing the length of the sequence that has to be typed in.

Join GNS Key Exchange Party at 30C3 Hamburg

The GNU Name System (aka GNS) is a fully decentralized, censorship resistant naming system based on the idea of a pet name system not relying on centralized organizations. Every user manages his own namespace. To access names and records of other user's you have to exchange some specific information which can be done in a convinient way using a business card with a QR code containing your GNS information.

Knock: Practical and Secure Stealthy Servers

Knock is a kernel patch that implements a new NAT-compatible TCP option for stealthy port knocking with a few new twists for improved security which is referred to as TCP Stealth.

Developer Documentation of the Week: The GNU Name System

I've just finished an update of the developer handbook chapter on the GNU Name System (GNS). GNS is used as the public key infrastructure (PKI) for GNUnet (and hopefully other applications). GNS names are structured like DNS names and GNS can be used as an alternative to DNS, as common record types from DNS are supported in DNS.

Updated installation instructions for Ubuntu 12.04 LTS

As a preparation for the coming release, I updated the Ubuntu 12.04 LTS installation documentation to contain the steps to install the current SVN version of GNunet and GNUnet-gtk with all dependencies.

GNUnet now requires only a few dependencies not available in the repositories, most prominent libgcrypt 1.6 and libgnurl 7.34.0 available from the GNUnet website.

If you find any issues please let me know..

Developer Documentation of the Week: GNUnet's IDENTITY subsystem

I've just finished the developer handbook chapter on GNUnet's IDENTITY subsystem. The IDENTITY subsystem is used for identity management, and here identies is about users, not peers. User identities in GNUnet are also called Egos, which are essentially public-private key pairs over Curve25519 using ECDSA. Identities are used for zones in the GNU Name System and as pseudonyms in file-sharing, and thus represent a fundamental building block for many GNUnet applications.


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