7. A system for providing system security and access based on multi-dimensional location characteristics, comprising: a contextual data collection device (CDCD) that collects contextual information characterizing a specific location during a first time period utilizing, wherein the contextual information indicates specific characteristics of the location and is collected at the location, and wherein the contextual information includes range information from a single perspective to at least two key materials located at the specific location, and wherein the contextual information further includes measured effect data acquired using dual frequency measurements of dielectric content of intervening material, wherein the measured effect data is a measured effect of the intervening materials on radio frequency (RF) signals received at the CDCD from a remote RF source; a device that creates a contextual location fingerprint (CLF) based on the collected contextual information, wherein the CLF is a data space of values mapped over specific period of time; and a device that compares new contextual information to the CLF and authenticates a device to be verified when the new contextual information is within predefined parameters of the CLF, wherein the new contextual information is collected at a location occupied by a device to be verified during a second time period, and wherein the new contextual information includes range information from the single perspective to at least two of the key materials located at the specific location.
12. A system as recited in claim 7 , wherein a key material is a wall.