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.
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.
We are pleased to announce the release of GNUnet 0.10.0. This release represents a major overhaul of the cryptographic primitives used by the system. GNUnet used RSA 2048 since its inception in 2001, but as of GNUnet 0.10.0, we are "powered by Curve25519". Naturally, changing cryptographic primitives like this breaks backwards compatibility entirely. We have used this opportunity to implement protocol improvements all over the 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.
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.