Distributed Symmetric Key Establishment (DSKE)

Currently deployed
key exchange
protocols such as
Diffie-Hellman (DH),
Elliptic Curve Diffie-Hellman (ECDH),
and
Rivest-Shamir-Adleman (RSA)
are vulnerable to attack by future quantum computers due to the discovery of
Shor's algorithm.

New protocols are under development to make key exchange quantum-safe.
The best-known two methods are
Post-Quantum Cryptography (PQC)
and
Quantum Key Distribution (QKD).

Most people are less familiar with Distributed Symmetric Key Establishment (DSKE) which is a
completely different approach for quantum-safe key exchange.

The DSKE approach is described in IETF Internet Draft
draft-mwag-dske
and in arXiv paper
arXiv:2205.00615 Distributed Symmetric Key Establishment: A scalable, quantum-proof key distribution system.
It has been commercialized by
Quantum Bridge
(who are not involved with this open source project).

This repository contains an open source implementation of DSKE inspired by the IETF draft.
I say "inspired by" because the draft only describes the general approach and not a detailed
protocol and because my implementation differs from the draft in some aspects.

Documentation:

• Getting started guide

• Introduction: What is DSKE and what problem does it solve?

• Protocol guide

• User guide

• Developer guide

• Resources