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    • 5. 发明公开
    • METHOD AND APPARATUS FOR SECURE MEASUREMENT CERTIFICATION
    • VERFAHREN UND VORRICHTUNG ZUR GESICHERTEN BEGLAUBIGUNG VON MESSDATEN
    • EP0956677A4
    • 2004-04-14
    • EP97920186
    • 1997-04-08
    • WALKER ASSET MAN LTD PARTNERSH
    • WALKER JAY SSCHNEIER BRUCEJORASCH JAMES A
    • H04L9/32H04L29/06H04L9/00
    • H04L63/08G06Q50/06H04L9/3231H04L9/3271H04L9/3297H04L63/12H04L2209/38H04L2209/805Y02P90/845
    • Methods and apparatuses are described for acquiring a physical measurement and for creating a cryptographic certification thereof, such that the measurement value and time can be verified by a party not present at the measurement. In one embodiment of the invention, the apparatus receives a certification request at an input device (12), and the certified measurement is generated by a computing device including a cryptoprocessor (10). The computing device receives a signal from a sensor (8) and a time from a clock (20) or a signal receiver (24). The certified measurement may be encrypted using a key stored in memory (40), and is outputted to an output device (100). The certified measurement may include corroborative information for associating the actual physical measurement process with the certified measurement. The external timing signals may also be used to determine the location of the measurement certification device for inclusion in the certified measurement.
    • 本发明涉及用于获得物理测量的方法和装置,并且用于创建该测量的加密认证,使得其值和时间可以由不一定存在于测量中的一方来验证。 认证测量还可以包括用于将实际物理测量过程与认证测量相关联的确认信息。 此类佐证信息可能反映了测量认证设备的内部或外部状态,以及可能在测量获取和认证中出现的任何人员的证人标识符。 该认证可以包括用于从卫星或其他外部源接收定时信号的信号接收器。 外部定时信号可以用于产生包括在认证测量中的时间,或者可以用于确定测量认证设备的位置以包括在认证的测量中。