Post-Quantum Key Exchange

[0x20CB]

Description

Hello,

I was wondering if it would be a good idea to add Kyber768 (ML-KEM) as a post-quantum key exchange with hybrid classical keys. This would make Libp2p more resistant and future proof for the long-term use of the project.

Motivation

This feature is needed for longevity of the project Libp2p and for being quick to adopt Post-Quantum cryptography like OpenSSL.

Requirements

1. To encrypt data using a hybrid form of Kyber768 and classical keys exchange (like X25519).
2. To be used with the Noise protocol for authentication

Open questions

NA

Are you planning to do it yourself in a pull request?

Yes

[drHuangMHT]

Hi! Please refer to this page on specs for more information on how libp2p uses cryptographic keys. All libp2p implementations shall follow the specs, so you may open an issue there.