1. A method, comprising: retrieving configuration information from a protected first memory, wherein the configuration information specifies a plurality of non-contiguous memory locations, wherein the plurality of non-contiguous memory locations store one or more parameters for a signature formula; retrieving the one or more parameters for the signature formula from the plurality of non-contiguous memory locations based on the configuration information; and calculating a first signature formula; wherein the first signature is useable to verify security for a system.