61 résultats

  • Breaking and fixing HB+DB: A Short Tale of Provable vs Experimental Security and Lightweight Designs

    • 02 février 2018

    • Inria Center of the University of Rennes - - Petri/Turing room

    Orateur : Ioana Boureanu (University of Surrey)

    HB+ is a well-know authentication scheme purposely designed to be lightweight. However, HB+ is vulnerable to a key-recovery, man-in-the-middle (MiM) attack dubbed GRS. To this end, at WiSec2015, the HB+DB protocol added a distance-bounding dimension to HB+, which was experimentally shown to counteract the GRS attack.In this talk, we will exhibit however a number of security flaws in the HB+DB[…]