Welcome to the resource topic for 2025/456
Title:
A Democratic Distributed Post-Quantum Certificateless Encryption Scheme
Authors: Thomas Prévost, Bruno Martin, Olivier Alibart
Abstract:We propose a post-quantum certificateless encryption scheme based on a web of trust instead of a centralized Key Generation Center. Our scheme allows nodes to communicate securely. It is the nodes already present in the network that vote on the acceptance of new nodes, and agree on the shared key. The threshold required for the acceptance of a new node is configurable. Our protocol thus allows to completely operate without the Key Generation Center (or Key Distribution Center).
Our scheme is based on Quasi-Cyclic Moderate Density Parity Check Code McEliece, which is resistant to quantum computer attacks. The voting system uses Shamir secret sharing, coupled with the Kabatianskii-Krouk-Smeets signature scheme, both are also resistant to quantum computer attacks.
We provide a security analysis of our protocol, as well as a formal verification and a proof of concept code.
ePrint: https://eprint.iacr.org/2025/456
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