Open Source Java Cryptography Software

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.

This project provides a simple Java-based steganography tool that can hide a message inside a 24-bit colour image so that knowing how it was embedded, or performing statistical analysis, does not make it any easier to find the concealed information.

Smoke is an encrypting chat messenger for Android written in Java. Please read the Web site for more information: https://textbrowser.github.io/smoke/ (original, current) https://www.amazon.com/dp/3752691999/ https://smokeappope.sourceforge.io/ (old, third party archive) Smoke App OPE - Open Personal Encryption Download Android APK Installer: https://sourceforge.net/projects/smokeappope/files/ Smoke Source: https://github.com/textbrowser/smoke SmokeStack Source: https://github.com/textbrowser/smokestack (Android) https://github.com/textbrowser/spot-on (Desktop) Smoke appears to be one of the first projects with an open source mobile encrypting chat server., an decentralized and easily-configurable chat server. Smoke is known as the first mobile McEliece Messenger: https://tarnkappe.info/artikel/english/mceliece-messaging-smoke-crypto-chat-the-first-mobile-mceliece-messenger-published-as-a-stable-prototype-worldwide-279847.html

jPBC is a Java porting of the PBC Library, a Pairing-Based Cryptography Library written in C. It supports symmetric and asymmetric pairing. With jPBC it is really easy to use such a strong cryptographic primitive.

This is a Hash Calculating tool that calculates MD2,MD5,SHA-1,SHA-256,SHA-384,SHA-512 hash of text or a file. This has GUI developed in java swings.All it needs is sun jre installed.

silvertunnel.org is a project that provides an end-user browser, a Java library and additional Java security tools to easily access anonymity networks such as the Tor (torproject.org) network. Secure and easy to use. Tor4Java and Tor Browser. Attention: see project status on page https://sourceforge.net/p/silvertunnel/discussion/962278/thread/83dc2d02/#

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

The project provides functionality to interface the SmartCardIO Java SDK library to Global Platform compliant smart cards, similar to globalplatform.sf.net. The difference is pure Java implementation and easy plug in to your SmartCardIO applications. This project is now more or less subsumed by Martin Paljak's continuation of the project at https://github.com/martinpaljak/GlobalPlatformPro.

SecuXabber is a secure Jabber-client for Android that bases on Xabber and uses a strong, asymmetric enryption that works on top of the XMPP protocol. A key pair is generated on application start-up. Users can send their public key to other SecuXabber users via Bluetooth. This ensures the origin of the public key because people do a face-to-face check during key exchange. After the keys are imported by both users, all communication between them is done fully encrpyted using a strong 4096 bit end-to-end encryption.

A software written in java to compute the digital signature on documents and verify them, using a smart card or a token file in p12 format

Infranet is a system that attempts to circumvent web censorship by allowing clients to surreptitiously request sensitive content via cooperating Web servers distributed across the global Internet.

Free portable cross-platform multi-user password manager, 100%-pure Java. DB for each pkg-user is encrypted and protected by pkg-user hash. In addition - passwords in DB are stored in encrypted form. In result - stored passwords are double encrypted ! Passwords of pkg-users are not stored in program - stored and compared only hashes. Support md2, md5, sha1, sha256, sha384 and sha512 hash. Support export DB to CSV, HTML, XLS or XML and import from CSV, XLS or XML. Simple and intuitive GUI - Graphical User Interface. PKG use crypto security random generator. Developed with Java Spring Framework. Tested in Windows/Linux. Need Jre-1.8 - https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html. Source - https://github.com/harp077/pkg . If you like this - put a star on https://github.com/harp077/pkg/ for support project please.

Open Legacy Storage Document: Generic Document Archiving on Disk and Network(using MINA) Framework in Java for huge number of docs(up to 2^192 documents), efficient(Java NIO), crypto, net transfert, web retrieve, J2EE and eMail archiving compatible.

“Scramble your social network data!” - With Scramble you can selective enforce you access control preferences for your content on social networks like Facebook or Twitter ...

Certificate-helper is a utility desktop application written in Java designed and created to assist (mainly developers) in creating and viewing keystores and digital certificates. This is done via a user interfaces implemented in Swing.

Encrypti is a multi platform, easy to use encrypting tool for keeping your files secure. This application offers portability of encrypted files between various platforms. Secure your files with Encrypti!

A standard API for accessing OpenPGP and S/MIME email in JavaMail.

With this system, a person can ask a yes/no-question to group of people while their answer is kept completely anonymous. The project is based on the dining cryptographers protocol.

Easy and simple PKCS7 signer using java and SunMSCAPI provider.

BMPE stands for Bitmap Editor and is an cross platform open source application written in java for editing and extracting messages from BMP files.

Backup P2P is a peer to peer application doing automated and secured backups inside a community (Jabber, XMPP). Each user shares some available space on his disk with others, to be able in return to remotely backup some of his own data.

A graphical tool for generating RSA and ECDSA cryptographic key-pairs, creating Certificate Signing Requests (CSRs) from them, and combining the key-pair with an issued digital certificate to create a secure portable container (PKCS12, JKS, JCEKS, etc.).

CertForge is a web-based certificate utility written in Java 1.6, to make or view X.509 certificates, keys, CRLs, manage keystore and truststore (CTL) for SSL sites, and run as a simple Certificate Authority (CA).

The CertMgr application allows you to administrator your own Certification Authority (e.g. for securing your network). You can create, sign and revoke your individual certificates via a simple User Interface.

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.