Patent ID: 8402536

Claim:
A method, comprising: determining to pass by an apparatus, to a configurable logic component, a configuration command signal, wherein the configuration command signal configures said configurable logic component into a commanded configuration; generating by the apparatus, via a signature generator, a signature of the configuration command signal; storing by the apparatus, in a last reconfiguration register, said generated configuration command signal signature; updating by the apparatus via a signature generator, in accordance with the configuration command signal, a historical signature, wherein the historical signature is based on all configuration command signals passed by the apparatus to the configurable logic component since a most recent power-up, and wherein the historical signature is stored in a reconfiguration history register; performing one or more of: checking for match between: a last reconfiguration value record, stored in a non-transitory memory outside the configurable logic component, and a generated configuration command signal signature stored in the last reconfiguration register; and checking for match between: a reconfiguration history value record stored in the non-transitory memory outside the configurable logic component, and a historical signature stored in the reconfiguration history register; and allowing by the apparatus, where the one or more performed checks yield match, continued operation of said configurable logic component.