Password Utility Suite

A Java Swing application for encrypting and decrypting sensitive values in YAML and Properties configuration files. Manage secrets across multiple environments (development, staging, production) with environment-specific master passwords and support for various encryption algorithms.

Features

• Multiple Environments: Configure separate environments (dev, staging, prod) with individual master passwords

• Visual Editor: Swing-based GUI with syntax highlighting and tree-view for configuration structure

• In-Place Encryption: Encrypt/decrypt values directly in the editor

• Format Support: YAML and Properties files

• Multiple Algorithms: AES-256-GCM (default), AES-256-CBC, MuleSoft-compatible formats, Blowfish

• Modern UI: FlatLaf Look & Feel for a clean, modern interface

Technical Stack

• Java: 17+

• Build Tool: Maven

• GUI Framework: Java Swing with FlatLaf Look & Feel

• YAML Parser: SnakeYAML

• Encryption: Java Cryptography Architecture (JCA)

• Testing: JUnit 5, AssertJ, Mockito, AssertJ Swing

Quick Start

Prerequisites

• Java 17 or higher

• Maven 3.6.0 or higher

Build and Run

# Clone the repository
git clone https://github.com/dataliquid/password-utility-suite.git
cd password-utility-suite

# Build the project
mvn clean install

# Run the application
mvn exec:java -Prun

# Build fat JAR
mvn package -Pfat-jar

# Run the fat JAR
java -jar target/password-utility-suite-1.0.0-SNAPSHOT.jar

First Steps

1. Start the application

2. Press Ctrl+E to open the Environments dialog

3. Create a new environment with a master password

4. Open or create a YAML/Properties file

5. Select values in the tree view and click "Encrypt" or "Decrypt"

Supported Encryption Algorithms

Algorithm	Description	Default
AES-256-GCM	AES with Galois/Counter Mode - authenticated encryption	✓
AES-256-CBC	AES with Cipher Block Chaining mode
MuleSoft AES-CBC	MuleSoft-compatible AES-CBC format
MuleSoft AES-CBC (Password IV)	MuleSoft format with password-derived IV
Blowfish	Blowfish encryption algorithm

Format Support

• YAML: Full support for nested structures, lists, and complex configurations

• Properties: Standard Java properties files

Encrypted values are marked with configurable prefixes/suffixes (default: ENC[…​] or SEC[…​])

Documentation

• User Guide - Complete usage documentation

• Contributing Guide - How to contribute to the project