Patent ID: 11861049
Assignee: THE GEORGE WASHINGTON UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 8:
9. A method for identifying a cache timing channel attack, the method comprising:
receiving cache occupancy data for a set of application domains occupying a cache in a processor;
performing a pair-wise analysis of the set of application domains over a plurality of time windows based on the cache occupancy data, wherein the pair-wise analysis identifies autocorrelations of cache occupancy between pairs of application domains in respective time windows; and
identifying a potential cache timing channel attack from the pair-wise analysis in response to observing patterns of cache occupancy mirrored between application domains of one or more application domain pairs of the plurality of application domains over the plurality of time windows, wherein the potential cache timing channel attack is associated with a highest autocorrelation of the autocorrelations of cache occupancy of the pairs of application domains in respective time windows.