Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1996-04-08
1998-10-27
Gregory, Bernarr E.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 9, 380 23, 380 49, 380 59, H04L 900
Patent
active
058287515
ABSTRACT:
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.
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Jorasch James A.
Schneier Bruce
Walker Jay S.
Gregory Bernarr E.
Walker Asset Management Limited Partnership
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