secure-messaging

Anonymous, end-to-end encrypted tip lines and chat for organizations and individuals.

Encrypted messaging protocol for secure server-routed communication.

Off The Record Chat Termux IRC / XMPP client with post-quantum OTRv4 (aes256gcm, DH double ratchet) Rust core: ML-KEM-1024 brace key rotation, ML-DSA-87 hybrid auth, Ed448 ring signatures, double ratchet, hybrid PQC SMP (ML-KEM-1024 + ML-DSA-87 per-step signatures + ZKP). ZeroizeOnDrop on all secrets. Zero traces on exit.

A Python-based tool for encrypting and decrypting messages using the cryptography library's Fernet method. The program features a simple command-line interface and automatic secret key generation for secure data protection.

It is a simple local tool for testing end-to-end encryption (E2EE) between two parties

Davell Message System is a decentralized peer-to-peer communication platform focused on absolute anonymity and security. It uses the Signal Protocol for end-to-end encryption and operates through the Tor network, hiding users’ IP addresses and metadata.

Academic multi-server messaging protocol prototype using WebSockets, RSA-OAEP/PSS, AES-256-GCM, and replay counters.

Peer-to-peer chat and VoIP system built in Python.

Secure Messenger is a robust, real-time chat application built with Python, FastAPI, and SQLAlchemy. It focuses on privacy and security by implementing end-to-end data protection, featuring AES-256-GCM encryption for stored messages, bcrypt password hashing, and JWT-based authentication

Secure P2P messaging over public MQTT with key-authenticated, broker-agnostic signaling for NAT traversal and decentralized networking.

End-to-end encrypted terminal chat: authenticated X25519 + Ed25519 key exchange with AES-256-GCM messages, a metadata-honest relay that never sees plaintext, Signal-style safety numbers, and offensive eavesdrop/MITM demos to prove what the design protects.

Secure peer-to-peer encrypted messenger with Signal Protocol, WebRTC voice/video calls, and zero-knowledge architecture. Private by design, encrypted by default

Simple end-to-end encrypted messenger using Python and AES-CTR (client & server like netcat)

Authenticated secure-messaging core using X25519, Ed25519, HKDF, and AEAD, with canonical versioned envelopes, replay protection, and encrypted local storage. Testable, hybrid-extensible, and built as a cryptographic engine rather than a full chat application.

Decentralised E2E messaging with pairing-gated social relays — open spec and Python reference implementation

End-to-end encrypted desktop chat using NaCl/Curve25519. No server-side decryption, no accounts — just keys.

IX-Operator is a secure operator platform for autonomous agents, combining a Rust cryptographic core with a Python runtime for authenticated sessions, encrypted messaging, and auditable orchestration. Built for clarity, testability, self-hosted deployment, and serious use for real teams.

Quantum-Secure: A GUI-based hybrid quantum-classical cryptographic key exchange simulator with BB84 visualization, MITM detection, entropy analysis, and secure messaging for smart grids.

A lightweight, end-to-end encrypted chat application built using Python, Tkinter, and socket programming. This project demonstrates how to create a secure messaging system with a graphical user interface and encrypted communication over a network.

End-to-end encrypted messaging system built on Discord. This project ensures confidentiality, integrity, authentication, and replay protection using modern cryptographic primitives like ECDH, AES-GCM, and Ed25519. Only ciphertext is relayed—Discord never sees plaintext, enabling secure and private communication.