Open Source Java Security Software - Page 49

reCAPTCHA JCA is a J2EE/Java EE Connector Architecture RA (Resource Adapter). It runs on any Java EE certified application server. reCAPTCHA JCA provides excellent connection pooling and allocation strategies by means of the JCA.

A Java client/server application for filetransfer over unreliable networks. This project started as a diploma-project and after its release, we are proud to make it publicy available.

Rot13 decoder for cellphones (j2me).

The iText based PDF sCramblEr allows you to encrypt a PDF using one or more public certificates of the addressees (one or more .cer files). For each .cer file, you can enforce specific PDF permissions: (dis)allow printing, (dis)allow modification,...

Samizdat is a toolkit for Java for building Kerberos secured distributed, message-oriented applications. The toolkit contains base classes that simplifies the management of Kerberos login contexts as well as flexibly sign and seal messages between principals using the Java GSS API. The toolkit contains Transformation classes for Kerberizing JMS traffic as well as a super-lean HTTP based protocol stack that supports both Synchronous (RPC) and Asynchronous modalities.

sanesigner is a high level digital signature api component. it support generating and verifying digital signatures as well as encryption and decryption using public keys, and lots of other features in between.

Secure and portable command-line password manager written in Java and based in the existing sf JRijndael project.

Using encryption to secure your code or text. Click File->Run to run your code using Ruby, see the pop up for output. Never save your text or code to disk unencrypted. Don't forget your password. Encryption is error-persistent.

An ultrasecure communications server and clients for *NIX and Windows hosts.

sfick (pronounced as "s-fick") is a two part software system whose function is to assist system administrators with the process of verifying the integrity of critical files. Given a system compromise, system administrators must be able to verify the integ

Shasummer is a SHA hashsum utility in Java. It can calculate SHA1, SHA256 and SHA512 hashes of a file or of a directory (and its subdirectories) and verify the hashes later. Shasummer has a graphical and a command-line interface.

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/#

Java Multiplatform project to offer a service to the digital sign of PDF files. Features: - PKCS11 (Smartcard), PKCS12 (Software). - Barcode PDF417. - Timeserver TSA. http://www.sinadura.net

The Secure Java Code Filter (SJCF) provides an ICAP-based filter mechanism for mobile Java code and the signatures applied to it. Administrators can define a centralized policy determining which applications and signatures respectively are allowed.

SJEA version 1.0 - Simple Java Encryption Algorithm. SJEA is a simple command-line binary encryption algorithm (symmetric block cipher) written in JAVA. It uses a password and a byte-vector array to scramble the input file.

Java library with Cryptographic algorithms. Easy to use Crypto algorithms. Works on Windows, Linux, Android. No external lib dependencies, no useless abstractions, no 'crypto provider'. Elliptic curves was borrowed from BouncyCastle and simplified a lot. Most of EC classes are custom algorithms for certain curves. Can be easily deleted if u dont need them. With couple of classes u can parse and construct those ugly ASN.1 structures, look at RSA and EC key formats for example. No bad dependencies between classes, so u can easily cut off unnecessary code and simply include what u need in your project. Feel free and simple without headache. We are using class Binary as best for us to work with byte arrays. Simple classes for console-like colored apps in GUI-mode. Look also http://demo.sls.team

The aim of the project is a lightweight intrusion detection library for embedded devices which supports MSP430 and ARM Cortex based devices. Features include DSP/SIMD support, IoT and embedded protocols, distributed operation, event and history management, tool supported configuration and visualization. There is a Java port that supports less features.

SMScryptor encrypts and decrypts messages sent from any mobile phones using : - AES 256 encryption - J2ME MIDP2.0 CLDC1.1 - ECMAScript - Apache / PHP / mysql

anti spam tool. uses an active algorithm (not filtering).

Example integration of Spring Security and Open SAML. This project contains two web applications: an Identity Provider and a Service Provider.

This project is a comprehensive example repository that demonstrates how to secure a Spring Boot application using Spring Security and JSON Web Tokens (JWT). It is built on Spring Boot 3.x and Java 21, and includes integrations such as Spring Security 6.x, JPA (via Hibernate) for persistence, and Redis for session/token management. The goal is to show how to migrate from stateful, session-based auth toward stateless, modern REST API authentication using JWTs, roles, and permission checks. The code covers typical flows like user registration, login, logout, refreshing or invalidating tokens, and endpoint authorization with annotations like @PreAuthorize. It’s cleaner and more up-to-date than many older tutorials, reflecting current Spring and Java versions and allowing direct experimentation by developers.

spule stands for "secure practical universal lecture evaluator". spule is a program to automatize the evaluation of lecture polls.

virgo-steganography Hidding any binary flle < 64k in image Require opencv on ubuntu, osx and android tested on Nougat (OpenCV Manager 3.0) armeabi To embed (output file name is o.png) ./embed image-file binary-file To extract ./extract steganography-file Compiled and run on os x, ubuntu, windows and android Most beautiful ratio image/binary 3MBytes/64KBytes https://www.youtube.com/watch?v=U--p5WoZ1mU

Sting is a simple, host-based approach to detecting arp cache poisoning based man in the middle attacks (such as made by ettercap) on your LAN. It uses SNMP to periodically query the arp cache of your router and make sure its entry for you is correct.