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ClawSec v2.0.0 - Complete Cryptography Modernization

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@LF3551 LF3551 released this 22 Nov 12:13
· 94 commits to main since this release
v2.0.0
4f7cbff

ClawSec v2.0.0 Release Notes

Complete Cryptography Modernization

This is the first major release of ClawSec with completely rewritten cryptographic implementation using modern, industry-standard algorithms.

Security Improvements

  • AES-256-GCM: Authenticated encryption with associated data (AEAD)
  • PBKDF2-HMAC-SHA256: Key derivation with 100,000 iterations
  • Secure Random IVs: Cryptographically strong initialization vectors
  • Protocol Versioning: Magic number validation and version checking
  • Memory Safety: Secure wiping of sensitive data
  • No Default Password: Removed hardcoded "metallica" key

New Features

  • Docker support with Alpine Linux
  • Kubernetes deployment manifests
  • Systemd service file
  • Automated installation script
  • CI/CD with GitHub Actions
  • Multi-platform builds (Linux, macOS, BSD)
  • Comprehensive documentation

Breaking Changes

⚠️ Not compatible with legacy Cryptcat

  • Binary renamed from cryptcat to clawsec
  • New encryption protocol (AES-256-GCM vs Twofish)
  • Password required via -k option (no default)

Installation

Quick Install:

git clone https://github.com/LF3551/ClawSec.git
cd ClawSec
./install.sh

Docker:

docker pull ghcr.io/lf3551/clawsec:2.0.0

Manual Build:

cd unix
make linux  # or: make freebsd, make netbsd, make macos

Usage

# Server
./clawsec -l -p 8888 -k "YourStrongPassword"

# Client
echo "secure data" | ./clawsec -k "YourStrongPassword" server-ip 8888

Download Binaries

Verification

# Verify checksums
cd release-2.0.0
shasum -c SHA256SUMS

Documentation

Contributors

  • Modernization and security improvements: 2025
  • Based on original Cryptcat by Farm9 team
  • Based on Netcat by Hobbit

Support

Full Changelog: https://github.com/LF3551/ClawSec/blob/main/CHANGELOG.md

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