Working with colleagues from the University of Bristol and from our local School of Mathematical Sciences, we combine our FLUSH+RELOAD side channel with an improved lattice attack to break the Bitcoin elliptic curve.

N. Benger, J. van de Pol, N. P. Smart and Y.Yarom, “Ooh, Aah… Just a Little Bit”: A Small Amount of Side Channel Can Go a Long Way.  Accepted for CHES2014, September 2014.