Open Source Java Security Software for Linux

Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman's original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds.

Angry IP scanner is fast and friendly network scanner for Windows, Linux, and Mac. It is very extensible, allowing it to be used for very wide range of purposes, with the primary goal of being useful to network administrators.

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.

This project now hosts the third-generation of Java SSH API, Maverick Synergy. This API builds on the Maverick Legacy commercial APIs and delivers a new API in a unified client/server framework. This API is available to the community under the LGPL open source license. This update includes ed25519 support, support for the new OpenSSH private key file format and stronger key exchange algorithms. The project continues to host both the original API and legacy applications created around it, however, these are now considered deprecated and we do not recommend their use in anyway.

HconSTF is Open Source Penetration Testing Framework based on different browser technologies, Which helps any security professional to assists in the Penetration testing or vulnerability scanning assessments.contains webtools which are powerful in doing xss(cross site scripting), Sql injection, siXSS, CSRF, Trace XSS, RFI, LFI, etc. Even useful to anybody interested in information security domain - students, Security Professionals,web developers, manual vulnerability assessments and much more.

The wolfSSL embedded SSL library (formerly CyaSSL) is a lightweight, portable, C-language-based SSL/TLS library targeted at IoT, embedded, and RTOS environments primarily because of its size, speed, and feature set. It works seamlessly in desktop, enterprise, and cloud environments as well. wolfSSL supports industry standards up to the current TLS 1.2 and DTLS 1.2, is up to 20 times smaller than OpenSSL, offers a simple API, an OpenSSL compatibility layer, OCSP and CRL support, is backed by the robust wolfCrypt cryptography library, and much more. wolfSSL relies on the FIPS 140-2 validated wolfCrypt library for all cryptographic functionality. Visit http://wolfssl.com/wolfSSL/fips.html for more info!

An open source implementation of the FIDO2 protocol to support passwordless strong authentication using public-key cryptography. Supports registration, authentication (all platforms), and transaction authorization (for native Android apps).

OpenSignature is an open source project for the digital signature of documents. It works with all cards supported by OpenSC and focuses on adding support for cards from accredited Italian CAs. The goal of the project is to provide a first single product

ODESSA - The Open Digital Evidence Search and Seizure Architecture is a cross-platform framework for performing Computer Forensics and Incident Response.

CartoReso intends to facilitate enterprise computer network mapping.

MailArchiva is a powerful, full featured email archiving (email archiver) and compliance solution for mail systems such as Microsoft Exchange. It stores all incoming, outgoing and internal emails for long term storage. A web based user interface is avail

PasswordMaker - One Password To Rule Them All!

An open source project originally designed to provide the University of Michigan with a secure single sign-on web authentication system. Cosign is part of the National Science Foundation Middleware Initiative (NMI) EDIT software release.

CryptoServer is the daemon for handling Sign-Verify, Encryption-Dencryption, Envelop-Openenvelop based on OpenSSL including the SEED symmetric algorithm (Korean Standard Symmetric Algorithm). It's interface is just tcp/ip socket and very easy to handle

Our goal is to develop, implement, evaluate and provide a secure and scaleable technical infrastructure for anonymous communication. This project is supported by Deutsche Forschungsgemeinschaft (DFG).

GDigiDoc is a GUI frontend built with GTKMM for DigiDoc (alias OpenXAdES - http://www.openxades.org) library allowing users to create digitally signed documents and verify signatures of other users. Signatures follow the XAdES (alias ETSI TS 101 903) and

An attempt to collect (read rewrite) a set of tools for Ultima Online game playing. Many tools are closed source or discontinued: no way to enhance them with no sources. Here there will be such tools and sources.

This is a non-causal non-linear encryption system that cannot be cracked by the von-neuman architectures available today

Barada (Barada Aint Respecting Any Deceptive Adversaries) is a PAM module designed to provide two-factor authentication support. There is companion software called Gort which runs on Android devices, essentially turning your phone into a SecureID token. The PAM module is available in the repositories for Debian based distributions. Gort, the Android client, is available from the android market (https://play.google.com/store/apps/details?id=net.sf.crypt.gort)

It moves by itself inside networks like virus infection & plagues, it is being written to solve computer virus problem drastically and responsibly. It is legal, free and open for public domain to improve W3 ICT Security.

Manage sources of video (i.e., from a security camera), recording clips where motion has been detected, and allowing those clips to be replayed. Variable lead-in/out time, motion detection, logging.

A stable and fast Linux/Unix toolset to aid in the security and ease of use of *Nix.

DecodeBase64 does exactly what the title says: it decodes strings encoded with the Base64 algorithm. Source code is provided in both Java and C++.

The objective of the GridTrust project is to develop new Grid Security technologies in order to manage Trust and Security in Grid for the Next Generation Grids from the requirement level down to the application, middleware and foundation levels.

An alternative Identification system that is a replacement for Microsoft's Passport and the Liberty Alliance. Its a simple architecture that is setup so anyone can run a server and thereby have control over their online identification.