Open Source Cryptography Software

encrypt is a multi-platform, file encryption application. Binary packages are currently provided for Arch, Debian, Fedora, MS Windows, Android and OS X. For further details, including the latest source code, visit https://albinoloverats.net/projects/encrypt

The OpenCA PKI Development Project is a collaborative effort to develop a robust, full-featured and Open Source out-of-the-box Certification Authority implementing the most used protocols with full-strength cryptography world-wide.

Cross platform GUI managing bookmarks and shortcuts in a portable way. Support import/export, search, encryption, hierarchical tags, USB key installation, various environments integration, OS-dependent shortcuts, plugins extensibility.

UPDATE 2024: Get a new version here: https://github.com/ivoras/EncryptedNotepad2 "Encrypted Notepad" does only one thing, but aims to do it perfectly - a Notepad-like simple text editor where files are saved (and later loaded) encrypted with industrial strength algorithms. Available both for the desktop (as a Java application) and on Android. Unencrypted data is never stored on-disk. Source is released (on SourceForge) under the BSD license.

SPipe (Secure Pipe) is a patch of mod_ssl package which allows the same corporate web server to be used as a secure access door to internal servers that do not use HTTPS protocol, while also retaining normal web server functionality for all HTTP requests

RSA Public Key Crypotgraphy for Web Browsers. Use JavaScript to RSA-encrypt data that can only be decrypted on the server, and not by prying eyes. The poor man's SSL...

A package of Rijndael, Twofish and Serpent encryption algorithms implemented in x86 assembly. Meant to learn basics of assembly, learn about the algorithms or to be used in a C program.

BarTex is a system designed to create inexpensive tickets for events. It uses a crypto system to verify tickets using barcodes; thus eliminating the cost of expensive, colorful tickets that cannot be photocopied/forged.

Botan is a C++ crypto library Note: all versions of botan served on sf are OBSOLETE AND NOT SUPPORTED IN ANY WAY. Go to http://botan.randombit.net for the latest stable/supported release.

BitMail is a Proof-of-Concept- / Design-Study for an Qt E-Mail Client. POP3 / IMAP / SMTP / P2P E-Mail-Client. ● Qt E-Mail Client. ● Build-in Encryption to secure E-Mails ● IMAP & POP3 ● Additionally a full decentral P2P Email-Option via the Echo Protocol ● Store Email for Offline-Friends in the P2P Network. ● Chat and Instant Messaging is build in. ● POPTASTIC function (Chat over Email) ● Calendar widget functionality. ● Open Source. BSD License. "Cassiopeia is the tortoise of Momo, which can communicate through writing on her shell and guides into the future." - Wikipedia. Source from: https://sf.net/projects/spot-on/files/ & https://github.com/textbrowser/spot-on

CivilAction lets you create a Choose Your Own Adventure type story that can be played on Java enabled cell phone. A desktop application lets you write story files. People run the story on their phone. Make a 'Tresure hunt' or 'Amaze Race' type game.

Cryptix is an international volunteer effort to produce robust, open-source cryptographic software libraries. Cryptix products are free, both for commercial and non-commercial use and are being used by developers all over the world.

Cryptix OpenPGP is a library which implements the OpenPGP standard (RFC 2440) in Java.

A collection of small utilities with a connection to cryptography and cryptanalysis. Written for efficiency and a small memory footprint.

Easy Encryptor is a cross-platform encryption program designed to be of high secure standard, and easy to use even for users with no knowledge of cryptography algorithms.

Estonian national ID Card management GUI tool.

Esymmetric/PKI is an effort to provide complex OpenSource PKI solution based on itu-t X509 standard.

The Fenrir Morph Signature project aims to provide existing signatures standards with a morph capability: "Sign once, distribute many". This capability allows to use the same signature for authenticating modified, but authorized, versions of a document

Hide your data from any scans for fingerprints at forensic analysis. Fragger is an concept to fragment files into many small files by scrambling the content of the source file.

The FreePKI project aims to create practical, interoperable & free code and services for Certificate and Registration Authorities based on the X.509 standard, including nearly zero-cost ID verification through a PGP-like web of trust scoring system.

The Ganymed SSH-2 for Java library (implementing the SSH-2 protocol) allows you to connect to SSH servers from within your Java programs.

A Javascript implementation of the Blowfish Encryption Algorithm described by Bruce Shneier circa 1993. Blowfish is a keyed, symmetric block cipher common in cipher suites and was placed, by Mr. Shneier, in the public domain.

The J-WASTE project aims at the implementation of a platform independent client/server Java implementation of the WASTE protocol. This project started as a mandatory project course in networking at the Luleĺ University of Technology in Sweden.

Two projects in one: easy to use javascript shopping cart and RSA-type javascript browser-based public-key encryption. Ecommerce without cgi!

Libmkeys is a C++ class library implementing the MIKEY(Multimedia Internet KEYing) protocol as described in RFC 3830.