Method and system for determining and securing proximity information over a network
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United States of America Patent
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May 6, 2014
Grant Date -
May 29, 2008
app pub date -
May 31, 2007
filing date -
Nov 29, 2006
priority date (Note) -
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Abstract
Aspects of a method and system for determining and securing proximity information over a network are provided. In this regard, data transmitted over a network may be time-stamped upon entering and/or exiting a network node. By taking the total time to travel between two network nodes and subtracting out any latency internal to one or more intermediate nodes, the time to traverse the physical links (the propagation time) between the two network nodes may be determined. Accordingly, if the speed at which data propagates over each link of the network is known, then a distance from the source node to the destination node may be determined. Additionally, aspects of the invention may enable one or more of authentication, validation, and encryption of timing and/or proximity information transmitted over a network.
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