Security

• rsyncrypto
  Rsyncrypto allows you to encrypt a file or a directory structure such that they can later be synchronized to another machine using rsync. ...
  
• TEA Total
  TEA Total is a very small 128 bit private key based encryption/decryption system which uses the block variant of TEA (Tiny Encryption Algorithm) ...
  
• OpenSSH SecurID patch
  This patch integrates SecurID authentication services directly into the OpenSSH daemon, allowing users to use SecurID tokens directly as their passwords instead of relying on the clunky sdshell. ...
  
• KFilecoder
  KFileCoder is a KDE utility which encodes files in an archive with a password. People who don't have the password won't be able to read data. ...
  
• OutGuess
  A universal steganographic tool that allows the insertion of hidden information into the redundant bits of data sources. ...
  
• ProShield
  ProShield is a security program for Debian Linux. It helps ensure your system is secure and up-to-date by checking many different aspects of your system. Regular use is recommended. ...
  
• Keychain
  The keychain script makes handling RSA and DSA keys both convenient and secure. ...
  
• Riley
  Riley is a file integrity checker written in Perl,somewhat similar to Tripwire. ...
  
• Network Security Analysis Tool
  nsat is a fast, stable bulk security scanner designed to audit remote network services and check for versions, security problems, gather information about the servers and the machine, and much more. ...
  
• Poppassd-ceti
  Poppassd-ceti is a Qualcomm password changer daemon with PAM support and several other improvements. This program is intended to be a secure way to change system passwords via the Web. ...
  
• pam_eps
  pam_eps is a PAM module that allows you to authenticate users against a remote server with a ssh daemon enabled. If the user exists in local machine, he is allowed entry. But if the user doesn't exis...
  
• Horatio: Authenticated Network Access
  The Horatio system is a firewall authentication tool. The premise: legitimate users want to attach laptops and other mobile hosts to the network, but security demands that illegitimate users be preve...
  
• Impost
  Impost is a network security auditing tool designed to analyze the forensics behind compromised and/or vulnerable daemons. There are two different kinds of operating modes; it can either act as a hon...
  
• murk
  Rsync friendly encryption that runs on the UNIX command line. Encrypt a file and backup the changes to an untrusted host. ...
  
• keymgr
  Keymgr is a cryptographic policy engine. ...
  
• pixiliate
  Pixilate is a commandline packet generation utility that reads Cisco PIX 6.2x or Cisco IOS ACLs as input and generates the appropriate packets. ...
  
• Invisible IRC Project
  IIP (Invisible IRC Project) is Internet Relay Chat privacy software designed for anonymity and security. It acts as an advanced proxy between your IRC client and servers by utilizing an encrypted mix...
  
• LinVPN
  LinVPN allows you to create a VPN (Virtual Private Network) from linux to linux. Normally both are gateways of a LAN, then the LANs behind them may access each other over an encrypted tunnel created ...
  
• Tunnel Vision
  TunnelVision creates an encrypted VirtualPrivateNetwork, or VPN, between two Tunnel Vision-capable sites on the Internet. ...
  
• NuFW
  NuFW is an enterprise grade firewall that performs an authentication of every single connection passing through the IP filter, by transparently requesting user’s credentials before any filtering de...
  
• pam_ccreds
  The pam_ccreds module provides the means for Linux workstations to locally authenticate using an enterprise identity when the network is unavailable. ...
  
• Sentinel
  Sentinel is a fast file scanner similar to Tripwire or Viper with built in authentication using the RIPEMD 160 bit MAC hashing function. It uses a single database similar to Tripwire, maintains file ...
  
• KeyNote
  KeyNote is a simple and flexible trust-management system designed to work well for a variety of large- and small- scale Internet-based applications. ...
  
• Poppassd-Expect
  Poppassd-Expect is a clone of the original poppassd program, which is written in C. ...
  
• md5mon
  It checks that certain system files have not been modified and it uses "md5sum" to compute checksums of files, reporting any differences from previously recorded checksums. Optionally, a somewhat mor...