WO2000079348A3 - System and method for providing a trusted third party clock and trusted local clock - Google Patents

System and method for providing a trusted third party clock and trusted local clock Download PDF

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Publication number
WO2000079348A3
WO2000079348A3 PCT/US2000/040168 US0040168W WO0079348A3 WO 2000079348 A3 WO2000079348 A3 WO 2000079348A3 US 0040168 W US0040168 W US 0040168W WO 0079348 A3 WO0079348 A3 WO 0079348A3
Authority
WO
WIPO (PCT)
Prior art keywords
clock
local clock
trusted
local
providing
Prior art date
Application number
PCT/US2000/040168
Other languages
French (fr)
Other versions
WO2000079348A2 (en
WO2000079348A8 (en
Inventor
David Robinson
David Tyo
Der Kaay Erik H Van
Gregory L Dowd
Original Assignee
Datum Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Datum Inc filed Critical Datum Inc
Priority to AU59371/00A priority Critical patent/AU5937100A/en
Priority to JP2001505251A priority patent/JP2003519417A/en
Publication of WO2000079348A2 publication Critical patent/WO2000079348A2/en
Publication of WO2000079348A3 publication Critical patent/WO2000079348A3/en
Publication of WO2000079348A8 publication Critical patent/WO2000079348A8/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions

Abstract

The present invention involves a system and method of providing a trusted local clock in a computer environment. The local clock is in communication with a certified master clock. The accuracy of the time of the local clock is certified by the master clock. If the local clock departs from a predetermined acceptable error, the master clock updates the local clock. The communication between the master clock and the local clock is a secure, synchronized communication. When the local clock is accurate, the master clock provides certification tokens which the local clock can provide to verify accuracy of its time stamps.
PCT/US2000/040168 1999-06-23 2000-06-08 System and method for providing a trusted third party clock and trusted local clock WO2000079348A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU59371/00A AU5937100A (en) 1999-06-23 2000-06-08 System and method for providing a trusted third party clock and trusted local clock
JP2001505251A JP2003519417A (en) 1999-06-23 2000-06-08 System and method for providing a trusted third party clock and a trusted local clock

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33807499A 1999-06-23 1999-06-23
US09/338,074 1999-06-23

Publications (3)

Publication Number Publication Date
WO2000079348A2 WO2000079348A2 (en) 2000-12-28
WO2000079348A3 true WO2000079348A3 (en) 2002-08-15
WO2000079348A8 WO2000079348A8 (en) 2003-10-23

Family

ID=23323303

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/040168 WO2000079348A2 (en) 1999-06-23 2000-06-08 System and method for providing a trusted third party clock and trusted local clock

Country Status (3)

Country Link
JP (1) JP2003519417A (en)
AU (1) AU5937100A (en)
WO (1) WO2000079348A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001097843A2 (en) * 2000-06-22 2001-12-27 University Of Iowa Research Foundation Methods for enhancing antibody-induced cell lysis and treating cancer
JP2002116695A (en) 2000-10-05 2002-04-19 Ibm Japan Ltd Data transmitting and receiving system, electronic mail distributing system, data transmitting method and data receiving system
GB2372597B (en) * 2001-02-27 2005-08-10 Hewlett Packard Co Device and method for data timestamping
FI115811B (en) 2001-06-27 2005-07-15 Nokia Corp Procedure for checking time data, system and terminal
EP1635529A1 (en) * 2004-09-09 2006-03-15 Daniel Akenine Method and computer product for proving time and content of data records in a monitored system
JP4672321B2 (en) * 2004-09-28 2011-04-20 株式会社東芝 Radiation monitor system
JP2006236252A (en) * 2005-02-28 2006-09-07 Fujitsu Ltd Security device, time calibration device, time stamp device, power supply control method and power supply control program
JP2006318442A (en) * 2005-04-13 2006-11-24 Forval Telecom Inc Event log management server, event management system, event log collection server, event log accumulation server, event log management method, and program thereof
DE602006016732D1 (en) * 2006-03-28 2010-10-21 Fraunhofer Ges Forschung Flexible generation of trusted time sources
JP5252539B2 (en) * 2007-11-09 2013-07-31 独立行政法人情報通信研究機構 Standard time distribution device, time stamp device, device for time stamp user, time authentication system, time authentication method, and time authentication program
JP2009188608A (en) * 2008-02-05 2009-08-20 Seiko Instruments Inc Time stamp device and method
JP6870072B2 (en) * 2016-09-23 2021-05-12 アップル インコーポレイテッドＡｐｐｌｅ Ｉｎｃ． Network timing synchronization
EP3572887B1 (en) 2018-05-21 2021-03-17 The Swatch Group Research and Development Ltd Universal device for winding and time-setting of a watch
EP3422119B1 (en) * 2017-05-29 2021-06-30 The Swatch Group Research and Development Ltd Universal device for preparing a watch

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0422757A2 (en) * 1989-10-13 1991-04-17 Addison M. Fischer Public/key date-time notary facility
EP0635790A1 (en) * 1993-07-22 1995-01-25 International Business Machines Corporation Client/server based secure timekeeping system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0422757A2 (en) * 1989-10-13 1991-04-17 Addison M. Fischer Public/key date-time notary facility
EP0635790A1 (en) * 1993-07-22 1995-01-25 International Business Machines Corporation Client/server based secure timekeeping system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"METHOD OF KEEPING AND SYNCHRONIZING TIME IN A MESSAGE-PASSING DISTRIBUTED SYSTEM", IBM TECHNICAL DISCLOSURE BULLETIN, IBM CORP. NEW YORK, US, vol. 32, no. 12, 1 May 1990 (1990-05-01), pages 422 - 425, XP000105421, ISSN: 0018-8689 *

Also Published As

Publication number Publication date
JP2003519417A (en) 2003-06-17
WO2000079348A2 (en) 2000-12-28
AU5937100A (en) 2001-01-09
WO2000079348A8 (en) 2003-10-23

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