SYSTEM AND METHOD FOR LOCATION VERIFICATION

摘要

Location data from one or more geolocation engines such as GPS, a system that determines location from relative signal strengths or transit times, etc., within and/or connected to a device, such as a mobile phone, vehicle, movable electronic device, computer, etc., is included in a digital record that submitted to obtain a digital signature such that the presence of the device at the particular location can later be proven. The digital record may include data that encodes a message, as well as other parameters such as time. The digital signature may include recomputation parameters for recomputing a verifying calendar value, formed by a keyless, hash tree-based signing infrastructure as an uppermost hash value in a calendar period.

主权项

1. A method for providing proof of location of a device, the method comprising:
forming at least one set of location data from signals from at least one geolocation engine; forming a digital record from parameters that include at least the set(s) of location data; submitting the digital record as part of a request for digital signature to a hash tree-based, keyless signature infrastructure; and receiving from the signature infrastructure a digital signature for the digital record; in which the digital signature encodes a signature time, further comprising including as a parameter in the digital record at least one locally derived time value, such that location of the device at the locally derived time is verifiable only if the locally derived time differs by no more than a maximum allowable amount from the signature time.