Patent ID: 8583880
Filing Date: 2013-11-12
Classification: G06F

Abstract:
1. A method for secure data reading for a data handling system, the method comprising an address dispatcher for dispatching read requests to a memory, comprising the steps of: dispatching a first read request; dispatching a second read request; dispatching a further first read request; producing an anomaly signal if a first result produced by the memory in response to the first read request does not agree with a further first result produced by the memory in response to the further first read request, wherein: the first read request is dispatched before the second read request is dispatched, and the second read request is dispatched before the further first read request is dispatched, wherein the method is characterized by comprising a first additional step, to be executed after the dispatching of the second read request; the first additional step comprising: producing the anomaly signal if a second result produced by the memory in response to the second read request does not agree with expectancy data associated with the second read request where the second result need not be a priori known or predictable and comprising a second additional step, to be executed after the dispatching of the further first read request, and before the producing of the anomaly signal; the second additional step comprising: dispatching a further second read request; wherein: the expectancy data associated with the second read request is a further second result produced by the memory in response to the further second read request.