Patent ID: 9646160
Date: 2017-05-09
CPC Classifications: G06F

Claim:
1. An apparatus for enhancing resilience to attacks, comprising: a plurality of storage elements forming a remapping group of storage elements update circuitry configured to receive obscuring data, and responsive to a reset event to store in each of said at least one storage element a data value that is dependent on a current value of the obscuring data; modification circuitry configured to modify a value of a control signal dependent on the remapping group of storage elements in order to generate a modified value for the control signal; and processing circuitry configured to operate in dependence on the modified value of the control signal, wherein the modification circuitry is configured to use the value of the control signal to identify a storage element within said remapping group, and to output the data value stored in the identified storage element as the modified value of the control signal.