2 papers
cs.CR2018
Defeating the Downgrade Attack on Identity Privacy in 5G
Mohsin Khan, Philip Ginzboorg, Kimmo Järvinen +1
3GPP Release 15, the first 5G standard, includes protection of user identity privacy against IMSI catchers. These protection mechanisms are based on public key encryption. Despite…
cs.DS2017
On estimating the alphabet size of a discrete random source
Philip Ginzboorg
We are concerned with estimating alphabet size from a stream of symbols taken uniformly at random from that alphabet. We define and analyze a memory-restricted variant of an al…