Rigorous Analysis of Software Countermeasures against Cache Attacks
CPU caches introduce variations into the execution time of programs that can be exploited by adversaries to recover private information about users or cryptographic keys.
Establishing the security of countermeasures against this threat often requires intricate reasoning about the interactions of program code, memory layout, and hardware architecture and has so far only been done for restricted cases.
In this paper we devise novel techniques that provide support for bit-level and arithmetic reasoning about memory accesses in the presence of dynamic memory allocation. These techniques enable us to perform the first rigorous analysis of widely deployed software countermeasures against cache attacks on modular exponentiation, based on executable code.
Tue 20 Jun
|10:50 - 11:15|
Timos AntonopoulosYale University, Paul GazzilloYale University, Michael HicksUniversity of Maryland, College Park, Eric KoskinenYale University, Tachio TerauchiJAIST, Shiyi WeiUniversity of Maryland, College ParkMedia Attached
|11:15 - 11:40|
|11:40 - 12:05|
Peter OhmannUniversity of Wisconsin - Madison, Alexander L. BrooksUniversity of Wisconsin, Madison, Loris D'AntoniUniversity of Wisconsin–Madison, Ben LiblitUniversity of Wisconsin–MadisonPre-print Media Attached
|12:05 - 12:30|