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Method of producing a proof of presence or of operation of an entity in an identified zone for a duration greater than a given threshold, and monitoring system
Method of producing a proof of presence or of operation of an entity in an identified zone for a duration greater than a given threshold, and monitoring system
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机译:在大于给定阈值的持续时间内产生已识别区域中实体的存在或运行证明的方法和监控系统
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摘要
A method for producing a proof of the presence and/or of the availability of an entity in a site over a period that is greater than or equal to a presence threshold, the method including: successively transmitting messages, the messages being generated from a secret such that the secret may be reconstituted by having the knowledge of a given number of messages that is greater than or equal to a threshold, each message being transmitted over a transmission period whose duration is chosen such that the product of the duration of the transmission period times the threshold is substantially equal to the presence threshold; comparing the secret and a secret candidate generated from messages received by the entity; the proof being produced only if the secret and the secret candidate are equal.
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