We use these services and cookies to improve your user experience. You may opt out if you wish, however, this may limit some features on this site.
Please see our statement on Data Privacy.
The Kyber reference implementation before 9b8d306, when compiled by LLVM Clang through 18.x with some common optimization options, has a timing side channel that allows attackers to recover an ML-KEM 512 secret key in minutes. This occurs because poly_frommsg in poly.c does not prevent Clang from emitting a vulnerable secret-dependent branch.
Reserved 2024-06-10 | Published 2024-06-10 | Updated 2024-08-02 | Assigner mitrepqshield.com/...-kem-to-improve-pqc-implementation-maturity/
github.com/antoonpurnal/clangover
github.com/...ommit/9b8d30698a3e7449aeb34e62339d4176f11e3c6c
news.ycombinator.com/item?id=40577486
twitter.com/purnaltoon/status/1797644696568959476
Support options
