초록 ▼

The invention relates to methods and apparatuses for acquiring a physical measurement, and for creating a cryptographic certification of that measurement, such that its value and time can be verified by a party that was not necessarily present at the measurement. The certified measurement may also i

The invention relates to methods and apparatuses for acquiring a physical measurement, and for creating a cryptographic certification of that measurement, such that its value and time can be verified by a party that was not necessarily present at the measurement. The certified measurement may also include corroborative information for associating the actual physical measurement process with the certified measurement. Such corroborative information may reflect the internal or external state of the measurement certification device, as well as witness identifiers of any persons that may have been present at the measurement acquisition and certification. The certification may include a signal receiver to receive timing signals from a satellite or other external source. The external timing signals may be used to generate the time included in the certified measurement, or could be used to determine the location of the measurement certification device for inclusion in the certified measurement.

대표청구항 ▼

[ What is claimed is:] [1.]1. A device for secure measurement acquisition and certification, comprising:a sensor;a time generator;a computing device, including a computer processor and a memory, coupled to receive (i) a digital signal representative of a physical measurement from the sensor and (ii)

[ What is claimed is:] [1.]1. A device for secure measurement acquisition and certification, comprising:a sensor;a time generator;a computing device, including a computer processor and a memory, coupled to receive (i) a digital signal representative of a physical measurement from the sensor and (ii) a time signal from the time generator; said computing device configured to form an augmented measurement including the digital signal and the time signal, and to perform a cryptographic operation on at least a portion of the augmented measurement to form a certified measurement; andan output device, coupled to the computing device, configured to write the certified measurement in response to a certified measurement request;wherein the sensor, the time generator, and the computing device are configured to be resistant to tampering.