AqBanking is a modular and generic interface to online banking tasks, financial file formats (import/export) and bank/country/currency information. AqBanking uses backend plugins to actually perform the online tasks. HBCI, OFX DirectConnect, YellowNet, GeldKarte, and DTAUS discs are currently supported. AqBanking is used by GnuCash, KMyMoney, and QBankManager.

This package provides a helper library for networking and security applications and libraries. It is used by AqBanking.

GNU libextractor is a library for extracting metadata from files. It supports a very large number of file formats, including audio files, document files, and archive files. Each file format is implemented as a plugin, so new formats can be added easily. The package also contains a command-line tool to extract metadata from a file and print the results.

GNUnet is a framework for secure peer-to-peer networking. The high-level goal is to provide a strong foundation of free software for a global, distributed network that provides security and privacy. GNUnet in that sense aims to replace the current internet protocol stack. Along with an application for secure publication of files, it has grown to include all kinds of basic applications for the foundation of a GNU internet.

For reliable NAT traversal, also install the miniupnpc package.

This package provides Guile modules for connecting to various GNUnet services. It also has infrastructure for writing new GNUnet services and connecting to them and can be used from multi-threaded environments. It is not to be confused with guile-gnunet -- guile-gnunet supports a different set of services.

The following services are supported:

• NSE (network size estimation)

• DHT (distributed hash table)

• CADET (secure end-to-end communication between arbitrary peers)

GNU libmicrohttpd is a small, embeddable HTTP server implemented as a C library. It makes it easy to run an HTTP server as part of another application. The library is fully HTTP 1.1 compliant. It can listen on multiple ports, supports four different threading models, and supports IPv6. It also features security features such as basic and digest authentication and support for SSL3 and TLS.

The GNU Privacy Guard is a complete implementation of the OpenPGP standard. It is used to encrypt and sign data and communication. It features powerful key management and the ability to access public key servers. It includes several libraries: libassuan (IPC between GnuPG components), libgpg-error (centralized GnuPG error values), and libskba (working with X.509 certificates and CMS data).

This package provides Python bindings to the GPGME GnuPG cryptographic library. It is developed in the GPGME source code, and then distributed separately.

Libassuan is a small library implementing the so-called Assuan protocol. This protocol is used for IPC between most newer GnuPG components. Both, server and client side functions are provided.

PyGPGME is a Python module that lets you sign, verify, encrypt and decrypt messages using the OpenPGP format by making use of GPGME.

Paperkey extracts the secret bytes from an OpenPGP (GnuPG, PGP, etc) key for printing with paper and ink, which have amazingly long retention qualities. To reconstruct a secret key, you re-enter those bytes (whether by hand, OCR, QR code, or the like) and paperkey can use them to transform your existing public key into a secret key.

The GNU Privacy Guard is a complete implementation of the OpenPGP standard. It is used to encrypt and sign data and communication. It features powerful key management and the ability to access public key servers. It includes several libraries: libassuan (IPC between GnuPG components), libgpg-error (centralized GnuPG error values), and libskba (working with X.509 certificates and CMS data).

Libgcrypt is a general-purpose cryptographic library. It provides the standard cryptographic building blocks such as symmetric ciphers, hash algorithms, public key algorithms, large integer functions and random number generation.

Pinentry provides a console and an Emacs interface that allows users to enter a passphrase when required by gpg or other software.

GnuPG::Interface and its associated modules are designed to provide an object-oriented method for interacting with GnuPG, being able to perform functions such as but not limited to encrypting, signing, decryption, verification, and key-listing parsing.

Guile-Gcrypt provides a Guile interface to a subset of the GNU Libgcrypt crytographic library. It provides modules for cryptographic hash functions, message authentication codes (MAC), public-key cryptography, strong randomness, and more. It is implemented using the foreign function interface (FFI) of Guile.

Parcimonie incrementally refreshes a GnuPG keyring in a way that makes it hard to correlate the keyring content to an individual, and makes it hard to locate an individual based on an identifying subset of her keyring content. Parcimonie is a daemon that fetches one key at a time using the Tor network, waits a bit, changes the Tor circuit being used, and starts over.

Npth is a library to provide the GNU Pth API and thus a non-preemptive threads implementation.

In contrast to GNU Pth is is based on the system's standard threads implementation. This allows the use of libraries which are not compatible to GNU Pth.

Guile-Gcrypt provides a Guile interface to a subset of the GNU Libgcrypt crytographic library. It provides modules for cryptographic hash functions, message authentication codes (MAC), public-key cryptography, strong randomness, and more. It is implemented using the foreign function interface (FFI) of Guile.

Libgpg-error is a small library that defines common error values for all GnuPG components. Among these are GPG, GPGSM, GPGME, GPG-Agent, libgcrypt, Libksba, DirMngr, Pinentry, SmartCard Daemon and possibly more in the future.

GPA, the GNU Privacy Assistant, is a graphical user interface for GnuPG. It can be used to encrypt, decrypt, and sign files, to verify signatures, and to manage the private and public keys.

Signing-party is a collection for all kinds of PGP/GnuPG related things, including tools for signing keys, keyring analysis, and party preparation.

1. caff: CA - Fire and Forget signs and mails a key

2. pgp-clean: removes all non-self signatures from key

3. pgp-fixkey: removes broken packets from keys

4. gpg-mailkeys: simply mail out a signed key to its owner

5. gpg-key2ps: generate PostScript file with fingerprint paper strips

6. gpgdir: recursive directory encryption tool

7. gpglist: show who signed which of your UIDs

8. gpgsigs: annotates list of GnuPG keys with already done signatures

9. gpgparticipants: create list of party participants for the organiser

10. gpgwrap: a passphrase wrapper

11. keyanalyze: minimum signing distance (MSD) analysis on keyrings

12. keylookup: ncurses wrapper around gpg --search

13. sig2dot: converts a list of GnuPG signatures to a .dot file

14. springgraph: creates a graph from a .dot file

This module allows easy access to GnuPG’s key management, encryption and signature functionality from Python programs.

QGpgme provides a very high level Qt API around GpgMEpp.