Projects tagged ‘cryptography’

The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength ... [More] general purpose cryptography library. The project is managed by a worldwide community of volunteers that use the Internet to communicate, plan, and dev [Less]

GnuPG is the GNU project's complete and free implementation of the OpenPGP standard as defined by RFC2440 . GnuPG allows to encrypt and sign your data and communication, features a versatile key managment system as well as access modules for all kind of public key directories.

OpenVPN is a robust and highly configurable VPN (Virtual Private Network) daemon which can be used to securely link two or more private networks using an encrypted tunnel over the Internet. OpenVPN's principal strengths include wide cross-platform ... [More] portability, excellent stability, support for dynamic IP addresses and NAT, adaptive link compression, single TCP/UDP port usage, a modular design that offloads most crypto tasks to the OpenSSL library, and relatively easy installation that in most cases doesn't require a special kernel module. [Less]

GnuTLS is a project that aims to develop a library which provides a secure layer, over a reliable transport layer.

On-the-fly encryption software which can create a virtual encrypted disk within a file and mount it as a real disk. It can also encrypt a hard disk partition or storage device, such as USB flash drive. Moreover, TrueCrypt supports plausible deniability.

The OpenBSD project produces a FREE, multi-platform 4.4BSD-based UNIX-like operating system... efforts emphasize portability, standardization, correctness, proactive security and integrated cryptography. OpenBSD supports binary emulation of most programs from SVR4 (Solaris), FreeBSD, Linux, BSD/OS, SunOS and HP-UX.

The keychain script makes handling RSA and DSA keys both convenient and secure. It acts as a front-end to ssh-agent, allowing you to easily have one long-running ssh-agent process per system, rather than per login session.

Tor is a toolset for a wide range of organizations and people that want to improve their safety and security on the Internet. Using Tor can help you anonymize web browsing and publishing, instant messaging, IRC, SSH, and other applications that use ... [More] the TCP protocol. Tor also provides a platform on which software developers can build new applications with built-in anonymity, safety, and privacy features. Tor aims to defend against traffic analysis, a form of network surveillance that threatens personal anonymity and privacy, confidential business activities and relationships, and state security. Communications are bounced around a distributed network of servers called onion routers, protecting you from websites that build profiles of your interests, local eavesdroppers that read your data [Less]

Here at the Bouncy Castle, we believe in encryption. That's something that's near and dear to our hearts. We believe so strongly in encryption, that we've gone to the effort to provide some for everybody.

mcrypt is a program for encrypting files or streams. It is intended to be a replacement for the old UNIX crypt. It uses well-known and well-tested algorithms like BLOWFISH, AES, ARCFOUR, CAST-128, and more in several modes of operation. It also has a compatibility mode with the old UNIX crypt program and the des program found in Solaris.

Libgcrypt is a general purpose crypto library based on the code used in GnuPG.

Freenet is a peer-to-peer network designed to allow the distribution of information over the Internet in an efficient manner, without fear of censorship. It is completely decentralized (there is no person or computer essential to its operation) ... [More] , meaning that Freenet cannot be attacked like centralized peer-to-peer systems such as Napster. Freenet also employs intelligent routing and caching to learn to route requests more efficiently, automatically mirror popular data, make network flooding almost impossible, and move data to where it is in greatest demand. [Less]

John the Ripper is a fast password cracker, currently available for many flavors of Unix (11 are officially supported, not counting different architectures), Windows, DOS, BeOS, and OpenVMS. Its primary purpose is to detect weak Unix passwords. ... [More] Besides several crypt(3) password hash types most commonly found on various Unix flavors, supported out of the box are Kerberos AFS and Windows NT/2000/XP/2003 LM hashes, plus several more with contributed patches. [Less]

Aircrack-ng is an 802.11 WEP and WPA-PSK keys cracking program that can recover keys once enough data packets have been captured. It implements the standard FMS attack along with some optimizations like KoreK attacks, thus making the attack much ... [More] faster compared to other WEP cracking tools. In fact aircrack is a set of tools for auditing wireless networks. [Less]

Perl bindings to OpenSSL.

The goal of this project is to create a GnuPG front end for Mac OS X. To that extent, it will make installing GnuPG on OS X easier and provide inter application services to access GPG. Also, GPGME wrapper in ObjC will be done.

Openswan is an Open Source implementation of IPsec for the Linux operating system. Is it a code fork of the FreeS/WAN project, started by a few of the developers who were growing frustrated with the politics surrounding the FreeS/WAN project.

Mailcrypt is an Emacs Lisp package which provides a simple interface to public key cryptography with PGP/GPG. Mailcrypt makes strong cryptography a fully integrated part of your normal mail and news handling environment.

JSecurity is a powerful and flexible open-source Java security framework that cleanly handles authentication, authorization, enterprise session management and cryptography. Our mission: To provide the most robust and comprehensive Java security framework available while also being very easy to understand and extremely simple to use.

M2Crypto is the most complete Python wrapper for OpenSSL featuring RSA, DSA, DH, HMACs, message digests, symmetric ciphers (including AES); SSL functionality to implement clients and servers; HTTPS extensions to Python's httplib, urllib, and ... [More] xmlrpclib; unforgeable HMAC'ing AuthCookies for web session management; FTP/TLS client and server; S/MIME; ZServerSSL: A HTTPS server for Zope and ZSmime: An S/MIME messenger for Zope. [Less]

OpenSC provides a set of libraries and utilities to access smart cards. Its main focus is on cards that support cryptographic operations, and facilitate their use in security applications such as mail encryption, authentication, and digital ... [More] signature. OpenSC implements the PKCS#11 API so applications supporting this API such as Mozilla Firefox and Thunderbird can use it. OpenSC implements the PKCS#15 standard and aims to be compatible with every software that does so, too. [Less]

tinc is a daemon with which you can create a virtual private network (VPN). One daemon can handle multiple connections, so you can create an entire (moderately sized) VPN with only one daemon per participating computer. tinc can tunnel IPv4, IPv6 and/or Ethernet packets over IPv4 and IPv6 networks.

DES, Blowfish, AES, TEA, SHA1, MD5, RSA, BubbleBabble, Hexdump, Support for Word128, Word192 and Word256 and Beyond, PKCS5 Padding, Various Encryption Modes e.g. Cipher Block Chaining all in one package.

strongSwan is an OpenSource IPsec implementation for the Linux operating system. It is based on the discontinued FreeS/WAN project and the X.509 patch which we developed over the last three years. It features IKEv1 and IKEv2 keying capabilities and targets Linux 2.6 native IPsec.

The Toolkit is a collection of cryptographic algorithms and protocols, implemented for use from Python. The current release is 2.0.1. Among the contents of the package: * Hash functions: MD2, MD4, RIPEMD, SHA256. * Block encryption algorithms: AES ... [More] , ARC2, Blowfish, CAST, DES, Triple-DES, IDEA, RC5. * Stream encryption algorithms: ARC4, simple XOR. * Public-key algorithms: RSA, DSA, ElGamal, qNEW. * Protocols: All-or-nothing transforms, chaffing/winnowing. * Miscellaneous: RFC1751 module for converting 128-key keys into a set of English words, primality testing. [Less]

Anytun is an implementation of the secure anycast tunneling protocol. It uses an easy openvpn style interface and makes it possible to build redundant vpn clusters with load balancing between servers. VPN Servers share a single IP address. Adding and ... [More] removing VPN Servers is done by the routing protocol, so no client changes have to be made when additional VPN Servers are added or removed. It is possible to realise global load balancing based on shortest BGP routes, by simply announcing the address space of the tunnel servers at multiple locations. [Less]

Eraser is a secure data removal tool for Windows. It completely removes sensitive data from your hard drive by overwriting it several times with carefully selected patterns.

GNUnet is a framework for secure peer-to-peer networking that does not use any centralized or otherwise trusted services. A first service implemented on top of the networking layer allows anonymous censorship-resistant file-sharing. GNUnet uses a ... [More] simple, excess-based economic model to allocate resources. Peers in GNUnet monitor each others behavior with respect to resource usage; peers that contribute to the network are rewarded with better service. [Less]

I2P is an anonymous network, exposing a simple layer that applications can use to anonymously and securely send messages to each other. The network itself is strictly message based (ala IP), but there is a library available to allow reliable ... [More] streaming communication on top of it (ala TCP). All communication is end to end encrypted (in total there are four layers of encryption used when sending a message), and even the end points ("destinations") are cryptographic identifiers (essentially a pair of public keys). [Less]

Torbutton is a 1-click way for Firefox users to enable or disable the browser's use of Tor. It adds a panel to the statusbar that says "Tor Enabled" (in green) or "Tor Disabled" (in red). The user may click on the panel to toggle the status.