Yet another insecure group key distribution scheme using secret sharing
Cryptography and Security
2026-03-20 v2
Abstract
A recently proposed group key distribution scheme known as UMKESS, based on secret sharing, is shown to be insecure. Not only is it insecure, but it does not always work, and the rationale for its design is unsound. UMKESS is the latest in a long line of flawed group key distribution schemes based on secret sharing techniques.
Keywords
Cite
@article{arxiv.2003.14356,
title = {Yet another insecure group key distribution scheme using secret sharing},
author = {Chris J Mitchell},
journal= {arXiv preprint arXiv:2003.14356},
year = {2026}
}
Comments
Minor modifications to provide extra background