Open Source Java Cryptography Software

JSignPdf is an open-source Java application that adds digital signatures to PDF documents.

Cryptomator is a free and open source project that offers multi-platform, transparent client side encryption of your files in the cloud. It works with just about any cloud storage service; is totally transparent so you can work with your files how you normally would; and secure with a 256-bit key length AES encryption. It’s also simple and easy to use with no need for different accounts, key management, cloud access grants or cipher configurations.

EJBCA is an enterprise class PKI Certificate Authority built on JEE technology. It is a robust, high performance, platform independent, flexible, and component based CA to be used standalone or integrated in other JEE applications.

Portecle is a user friendly GUI application for creating, managing and examining key stores, keys, certificates, certificate requests, certificate revocation lists and more.

mendelson AS2 is the JAVA-based open source EDIINT AS2 solution. Monitoring- and configuration GUI, async & sync MDN, signatures, encryption, TLS, web interface, pluggable into any servlet container, partner manager, certificate manager, data compression, optional profiles: MA, FN. Localized to Spanish, Italian, Portuguese, German, English, French.

KeyStore Explorer is a free GUI replacement for the Java command-line utilities keytool and jarsigner.

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.

Keytool is an Eclipse plugin that maintains keystores and certificates. It allows you to create certificates and put them in a keystore. You can from Eclipse, open and inspect certificates that are stored as .cer, or in a given keystore.

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

PLEASE NOTE that we are in the process of moving to GitHub: https://github.com/jasypt/jasypt Jasypt (Java Simplified Encryption) is a java library which allows the developer to add basic encryption capabilities to his/her projects with minimum effort, and without the need of having deep knowledge on how cryptography works. PLEASE NOTE that we are in the process of moving to GitHub: https://github.com/jasypt/jasypt

Portable PGP is a fully featured lightweight java based PGP tool. It allows to encrypt,decrypt,sign and verify text and files with a nice and absolutely straight graphical interface.

PortableSigner is a tool for digital signing (with X.509 certificates) of PDF files

Web AND Mobile (Apple iPhone) based, multi user, java port of the KeePass project. A free, easy to use password manager which helps you to manage your passwords in a secure way. Focused on deep encryption and ease of use.

The SignServer is an application for server side signatures called by other systems. It is flexible and can be customized to specific needs. The SignServer have a ready to use TimeStamp server and signers for PDF, XML, ODF, PGP, OOXML and MRTD (ePassport DS).

Cracx allows you to crack archive passwords of any encryption using 7-zip, WinRAR or a custom command, via Brute Force or Dictionary attack. Note: You must NOT use this program with files you don't have the rights to extract/open/use them! Currently, the program requires a current version of either 7-zip or WinRAR to be installed, but you can also use it to bruteforce basically anything that is executably via command-line with custom parameters. On an i7 CPU, it runs approximately 30 combination tests per second. Feel free to make suggestions or contribute by implementing features and translating the tool into your native language!

The AWS Encryption SDK is a client-side encryption library designed to make it easy for everyone to encrypt and decrypt data using industry standards and best practices. It enables you to focus on the core functionality of your application, rather than on how to best encrypt and decrypt your data. The AWS Encryption SDK is provided free of charge under the Apache 2.0 license. With the AWS Encryption SDK, you define a master key provider (Java and Python) or a keyring (C, C#/.NET, and JavaScript) that determines which wrapping keys you use to protect your data. Then you encrypt and decrypt your data using straightforward methods provided by the AWS Encryption SDK. The AWS Encryption SDK does the rest. Without the AWS Encryption SDK, you might spend more effort on building an encryption solution than on the core functionality of your application. By default, the AWS Encryption SDK generates a unique data key for each data object that it encrypts.

This project is devoted to provide a simple software layer for digital signature, when an hardware cryptographic token is required. The default implementation tries to comply as strictly as possible with the italian law digital signature directives.

An encryption/decryption engine which can encrypt any file(text, pdf , doc, rtf , gpg , mp3 , mp4 etc..) or any data on your PC such that only you with the valid password can decrypt it.Also it will compress the file while encrypting it.

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.

Secrets for Android is an app that allows you to securely store and manage passwords and secrets on your Android device. PCSecrets is an application that provides similar facilities for a PC. PCSecrets Sync is an Android app that provides a synchronization capability between the two. It makes use of the new synchronization interface introduced in Secrets for Android (SfA) 2.4. The app is essentially a service and has no direct user interaction (no user interface). The app can be installed from Google Play or the .apk file can be downloaded from here. Secrets for Android is available on Google Play. PCSecrets is available on SourceForge. Click on the web site link below for full documentation.

Hash Cracker is an application developed in java swings that allows a user to crack MD2, MD5, SHA-1,SHA-256,SHA-384,SHA-512 hashes either using brute force or using wordlists of the user's choice based on the users choice.

JHide is simple steganography tool aimed to demonstrate basic steganography techniques.

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.

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.

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.