gnoMint
gnoMint is a Certification Authority management tool for GTK/Gnome.

Endian Firewall Community
Endian Firewall is a "turn-key" linux security distribution based on IPCop that turns every system into a full featured security appliance....

StoneVPN
StoneVPN is an application that makes it easy to create certificates and configuration files for use with an OpenVPN server for both Linux and Windows...

Paperkey
Paperkey is a reasonable way to achieve a long term backup of OpenPGP (GnuPG, PGP, etc) keys is to print them out on paper. Due to metadata and...

Pyclamdplus
Pyclamdplus is a fork of the pyclamd project, in order to bring it back to life in a Pythonic way.

paraproxy
paraproxy is a supplement library for paramiko which adds support for SSH2 proxy commands.

Seahorse Plugins
Seahorse Plugins package contains plugins and utilities for encryption in GNOME.

CrypTooLinux
CrypTooLinux is an utility to learn cryptography and cryptanalysis. It is a C++/QT4 application. The primary objective is to make a clone of CrypTool...

Mandos
Dropbox is a useful tool to share and store your files online.

Securepoint Security Suite
Securepoint Security Suite is a complete firewall, content filter, spam filter, authentication and VPN software system with an OS based on a secure...

passwdqc
pam_passwdqc is a simple password strength checking module for PAM-aware password changing programs, such as passwd.

LSM-PKCS11
LSM-PKCS11 is a project intended to support the implementation of Lite Security Modules. The targets of such implementations are PKIs (Public Keys...

py-nilsimsa
Py-Nimsilsa is a Python port of the Nilsimsa locality-sensitive hashing application.

SoftHSM
SoftHSM is an implementation of a cryptographic store accessible through a PKCS#11 interface. It can be used to explore PKCS#11 without having a...

samhain
Samhain is a multiplatform, open source solution for centralized file integrity checking / host-based intrusion detection on POSIX systems (Unix,...

nilsimsa
Nilsimsa is a program that computes a locality-sensitive hash of a message.

JBroFuzz
JBroFuzz is a web application fuzzer for requests being made over HTTP and/or HTTPS. Its purpose is to provide a single, portable application that...

gkeyring
gkeyring is a small Python utility for command-line access to GNOME keyring. It provides simple querying for and storing of network credentials. It...

CryptFS Wrapper
CryptFS Wrapper is a bash shell script that handles all the dirty work of using a cryptographic filesystem. In plain English, my CryptFS Wrapper...

Snort
Snort project is a "lightweight" intrusion detection technology in comparison to commercially available systems.

Seahorse
Seahorse is a GNOME application for managing PGP keys. Seahorse project also integrates with nautilus, gedit and other places for encryption,...

Pathfinder PKI Daemon
Pathfinder PKI Daemon is designed to provide a mechanism for any program to perform RFC3280-compliant path validation of X509 certificates, even when...

KeepassX
Keepass/L project is a linux port of the Windows application "Keepass Password Safe".

Graphical certification authority
Graphical certification authority project is a graphical user interface to OpenSSL, RSA/DSA public keys, certificates, signing requests and revokation...