StegX

Authenticated LSB steganography with Argon2id, AES-GCM + ChaCha20-Poly1305, Shamir quorum and plausible-deniability panic mode — version 2.0.1.dev1.

StegX hides files inside PNG images using password-shuffled LSB embedding and authenticated encryption. It is a ground-up security rewrite built around a versioned container format, Argon2id key derivation, domain-separated HKDF sub-keys, LSB-matching (±1) embedding that defeats chi-square steganalysis, and optional ChaCha20-Poly1305 dual-cipher, F5-style matrix embedding, adaptive cost-map filtering, keyfile 2FA, YubiKey challenge-response, plausible-deniability decoy payloads, panic-mode destructive decode, and k-of-n Shamir secret sharing across multiple cover images.

Getting started

• Command-line interface
  • Quick start
  • Top-level subcommands
• Packaging
  • PyPI wheel + sdist
  • Debian source package
  • Docker image

Security

• StegX Threat Model
  • Assets under protection
  • Adversaries
  • Cryptographic primitives (StegX 2.0.0 / v3 format)
  • Known residual risks
• 🛡️ StegX v2.0 Technical Evaluation & Benchmark Report
  • 1. Executive Summary
  • 2. Cryptographic Architecture & Brute-Force Resistance
  • 3. Data Compression Multiplexer
  • 4. Steganalysis & Statistical Invisibility
  • 5. Advanced Tactical Capabilities
  • 6. Secure Software Development Life Cycle (SSDLC)
  • 6. Head-to-Head Technical Comparison: StegX v2.0 vs. Steghide

Container format

• Container format
  • v3 header (shipped in 2.0.0)

Testing

• StegX Testing Suite
  • Table of Contents
  • Overview
  • Test Directory Structure
  • Setup and Installation
  • Running Tests
  • Test Categories
  • Extending the Test Suite
  • CI/CD Integration
  • Kali Linux Considerations
  • Troubleshooting
  • Contributing
• Coverage Improvement Tips and Kali Linux Considerations
  • Test Coverage Improvement Tips
  • Kali Linux-Specific Considerations
  • Continuous Integration Setup for Kali Linux
• StegX Test Case Explanations
  • 1. Unit Tests
  • 2. Integration Tests
  • 3. System Tests
  • 4. Performance Tests
  • 5. Security Tests
  • Importance of Comprehensive Testing for StegX

Python API

• Python API
  • stegx.cli
  • stegx.crypto
  • stegx.kdf
  • stegx.header
  • stegx.steganography
  • stegx.shamir
  • stegx.safe_paths
  • stegx.secure_memory

Indices and tables

• Index

• Module Index

• Search Page