5 Repos
Cryptographic techniques that ensure the compromise of long-term keys does not compromise past session keys.
Distinguishing note: Focuses on the specific property of forward secrecy in session management rather than general key rotation.
Explore 5 awesome GitHub repositories matching security & cryptography · Forward Secrecy Implementations. Refine with filters or upvote what's useful.
Signal-Android is an end-to-end encrypted messaging platform designed to ensure that only the sender and recipient can access communication content. The project provides a comprehensive framework for secure, asynchronous message initiation and key agreement, allowing users to establish private channels without requiring simultaneous online presence. It relies on a state machine architecture to manage communication epochs and authentication, ensuring consistent security transitions throughout the messaging lifecycle. The platform distinguishes itself through a hybrid cryptographic approach tha
Designing messaging systems that automatically rotate encryption keys to protect past communications even if current keys are compromised.
Signal-iOS is an encrypted messaging client that provides secure communication for voice calls, media, and text. It functions as a complete implementation of the Signal Protocol, utilizing end-to-end encryption to ensure that only intended recipients can access transmitted data. The application distinguishes itself through the integration of advanced cryptographic standards, including the use of elliptic curve cryptography for identity verification and digital signature validation. It employs a double ratchet key exchange mechanism to rotate encryption keys for every individual message, ensur
Ensures that past communications remain secure and unreadable even if a long-term encryption key is compromised in the future.
This project is a comprehensive educational resource and curriculum focused on site reliability engineering, distributed systems, and infrastructure operations. It provides technical guides, a systems engineering course, and instructional manuals designed to teach the principles of managing large-scale computing environments. The curriculum covers high-level architectural design for scalability and resilience, including fault-tolerant infrastructure, high-availability patterns, and microservices decomposition. It emphasizes the practical application of site reliability engineering through the
Describes the use of ephemeral session keys to ensure forward secrecy and protect past traffic.
CJDNS ist ein Peer-to-Peer-VPN und ein kryptografisches Netzwerk-Overlay, das ein verschlüsseltes IPv6-Mesh-Netzwerk implementiert. Es fungiert als Router für verteilte Hash-Tabellen und nutzt eine nicht-hierarchische XOR-Metrik, um Datenverkehr über Knoten hinweg zu leiten, ohne auf eine zentrale Instanz oder Registrierung angewiesen zu sein. Das Projekt zeichnet sich dadurch aus, dass es die Netzwerkidentität an kryptografisches Eigentum bindet und eindeutige IPv6-Adressen aus öffentlichen Schlüsseln ableitet. Es stellt sichere Peer-Verbindungen über NAT-Grenzen hinweg sicher, indem es Public-Key-Authentifizierung, Ende-zu-Ende-Paketverschlüsselung und ein Handshake-Protokoll mit Perfect Forward Secrecy verwendet. Die Software deckt ein breites Spektrum an Funktionen ab, darunter automatisierte Peer-Erkennung via DNS-Seeds und lokales Netzwerk-Beaconing sowie Netzwerk-Gateway-Operationen zum Tunneln von Datenverkehr in das öffentliche Internet. Sie enthält Sicherheitskontrollen für Paketintegrität und Replay-Schutz sowie eine administrative API für programmatische Überwachung und Routing-Management. Das System unterstützt die Automatisierung von Diensten beim Systemstart und die Initialisierung virtueller Netzwerktunnel-Geräte.
Ensures that the compromise of long-term private keys does not lead to the decryption of past session traffic.
Reticulum is a decentralized networking stack that enables encrypted, peer-to-peer communication over diverse physical mediums without relying on central infrastructure or IP protocols. It uses self-sovereign cryptographic identities for routing and authentication, replacing traditional IP addresses with collision-free globally unique addresses that require no central coordination. Every packet is encrypted by default using ephemeral key exchanges with forward secrecy, and unencrypted traffic is dropped as invalid. The stack unifies heterogeneous transport mediums—including LoRa radio, packet
Protects every packet and link with ephemeral keys derived from X25519 ECDH, ensuring past sessions remain secure if a key is compromised.