OpenVPN is a robust and highly flexible tunneling application that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single TCP/UDP port.
Discussion forums and project wiki can be found here:
https://forums.openvpn.net/
http://community.openvpn.net/openvpn
Note: this is alpha-quality software, and isn't ready for production use.
STROBE is a lightweight framework for cryptographic protocols. It supports encryption/decryption, hashing, pseudorandom generation and message authentication. It integrates these components in an innovative way that makes secure protocol design relatively simple.
With the included elliptic curve code, STROBE additionally supports asymmetric key exchange and digital signature creation and verification.
eurephia is an authentication and access control plug-in for OpenVPN. It improves authentication by adding user/password auth in addition to certificates. Access control is managed via iptables on Linux servers. See web page for more info
[WARNING] Project has moved to http://github.com/Retroshare/Retroshare
[IMPORTANT] Retroshare is now distributed on Github. Please go to http://retroshare.net to find the latest releases and sources.
RetroShare is a cross-platform, secured and decentralized communication system. It lets you to securely chat, share photos, videos, and more with family and friends, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.
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Off-the-Record (OTR) Messaging allows you to have private conversations over instant messaging by providing encryption, authentication, deniability, and perfect forward secrecy.
TACACS+ protocol client library and PAM module in C. This PAM module support authentication, authorization (account management) and accounting (session management)performed using TACACS+ protocol designed by Cisco.
mod_gnutls uses the GnuTLS library to provide SSL 3.0, TLS 1.0, TLS 1.1 and 1.2 encryption for Apache HTTPD. It is similar to mod_ssl in purpose, but does not use OpenSSL.
A distance vector routing protocol based on delay for IPv4 & IPv6
A new routing protocol called Delay Based Routing Protocol (DBRP). It is a flexible distance vector routing protocol with a metric based on delay. It natively supports IPv4 and IPv6, and can also carry information for common services such DNS servers
Linux-PAM module plus PostgreSQL stored procedures to capture and store encrypted passwords. Intended to facilitate migration of credentials to different authentication systems. Use subversion (see 'Code' tab) to download project source code.
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mod_auth_certificate is an authentication module for Apache Webserver 2.x. It adds the capability to forward usernames returned by mod_ssl to authorization providers like mod_authz_ldap.
BeeCrypt is an ongoing project to provide a strong and fast cryptography toolkit. Includes entropy sources, random generators, block ciphers, hash functions, message authentication codes, multiprecision integer routines, and public key primitives.
Three software packages to work with RFC2617 digests: libdigest (C library to compute digests), libcppdigest (C++ library to manage /etc/passwd-like files) and libpam-digestfile (PAM module allowing authentication via an /etc/passwd-like file)
The Password Auditing Project will be a compilation of other, previously released password auditing programs, in such a fashion as to reap the best benefits of each portion. Pulling innovations from John the Ripper, Lepton, Rainbow Tables, and more.
This project currently provides a set of modules that enable the use of smartcard based authentication & digital signature security services. It also interact with the OpenCA project to provide a smartcard-based PKI.
Qryptix consists of a PAM object and utilities for session- and key-management for encrypted home directories using the International Kernel (CryptoAPI) patches for Linux. It simplifies login/logout, mounting/unmounting, and key generation and changing.
UnityCA is a Certificate Authority "front end" based on the Community-Oriented CA (COCA) model, which was primarily developed for non-profit "free CAs." Organizational and end-user interfaces provide trusted web management of the installed CA (eg ElyCA).
xhelix: python C extension implementing Helix encryption and authentication.
Based on the article named "Helix: Fast Encryption and Authentication" by Niels Ferguson and Bruce Schneier, published in the Nov 2003 issue of Dr Dobbs Journal.
Encrypted Messaging and Authentication Protocol, Client and Server. This project is meant to further the development of the Encrypted Messaging and Authentication Protocol.
The SSHD Library (libsshd) project enables server programs to easily integrate full SSH1 / SSH2 protocol authentication and support natively, built on top of existing and proven OpenSSH technology.