WO2001063927A1 - System and methods for generating trusted and authenticatable time stamps for electronic documents - Google Patents
System and methods for generating trusted and authenticatable time stamps for electronic documents Download PDFInfo
- Publication number
- WO2001063927A1 WO2001063927A1 PCT/US2001/005919 US0105919W WO0163927A1 WO 2001063927 A1 WO2001063927 A1 WO 2001063927A1 US 0105919 W US0105919 W US 0105919W WO 0163927 A1 WO0163927 A1 WO 0163927A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- trusted
- clock
- time
- certified
- local clock
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
- H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
- G06F21/72—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in cryptographic circuits
- G06F21/725—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in cryptographic circuits operating on a secure reference time value
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0823—Network architectures or network communication protocols for network security for authentication of entities using certificates
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2115—Third party
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2151—Time stamp
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
- H04L2463/102—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measure for e-commerce
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
- H04L2463/121—Timestamp
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
- H04L63/126—Applying verification of the received information the source of the received data
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Software Systems (AREA)
- Mathematical Physics (AREA)
- Development Economics (AREA)
- Economics (AREA)
- Marketing (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Computer And Data Communications (AREA)
- Electric Clocks (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01916205A EP1279287A1 (en) | 2000-02-22 | 2001-02-22 | System and methods for generating trusted and authenticatable time stamps for electronic documents |
JP2001562020A JP2003524348A (en) | 2000-02-22 | 2001-02-22 | System and method for generating trusted authenticable timestamps for electronic documents |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/510,408 | 2000-02-22 | ||
US09/510,408 US6393126B1 (en) | 1999-06-23 | 2000-02-22 | System and methods for generating trusted and authenticatable time stamps for electronic documents |
CA002398415A CA2398415A1 (en) | 2000-02-22 | 2002-08-20 | System and methods for generating trusted and authenticatable time stamps for electronic documents |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001063927A1 true WO2001063927A1 (en) | 2001-08-30 |
Family
ID=32909224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/005919 WO2001063927A1 (en) | 2000-02-22 | 2001-02-22 | System and methods for generating trusted and authenticatable time stamps for electronic documents |
Country Status (5)
Country | Link |
---|---|
US (2) | US6393126B1 (en) |
EP (1) | EP1279287A1 (en) |
JP (1) | JP2003524348A (en) |
CA (1) | CA2398415A1 (en) |
WO (1) | WO2001063927A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1361695A2 (en) * | 2002-05-08 | 2003-11-12 | Hitachi, Ltd. | Time stamp generating system |
EP1841124A1 (en) * | 2006-03-28 | 2007-10-03 | Nokia Siemens Networks Gmbh & Co. Kg | Flexible generation of trusted time sources |
US7555651B2 (en) | 2003-05-28 | 2009-06-30 | Fujitsu Limited | Time management apparatus and time management method |
EP2552048A1 (en) * | 2010-03-25 | 2013-01-30 | Kei Communication Technology Inc. | Measurement data management method and measurement data management system |
CN103281292A (en) * | 2012-01-10 | 2013-09-04 | 汤姆森特许公司 | Method and device for timestamping data and method and device for verification of a timestamp |
Families Citing this family (129)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL127569A0 (en) | 1998-09-16 | 1999-10-28 | Comsense Technologies Ltd | Interactive toys |
US6607136B1 (en) * | 1998-09-16 | 2003-08-19 | Beepcard Inc. | Physical presence digital authentication system |
CA2345745A1 (en) | 1998-10-02 | 2000-04-13 | Comsense Technologies, Ltd. | Card for interaction with a computer |
US7409557B2 (en) | 1999-07-02 | 2008-08-05 | Time Certain, Llc | System and method for distributing trusted time |
US6898709B1 (en) | 1999-07-02 | 2005-05-24 | Time Certain Llc | Personal computer system and methods for proving dates in digital data files |
US6895507B1 (en) * | 1999-07-02 | 2005-05-17 | Time Certain, Llc | Method and system for determining and maintaining trust in digital data files with certifiable time |
US6948069B1 (en) | 1999-07-02 | 2005-09-20 | Time Certain, Llc | Method and system for determining and maintaining trust in digital image files with certifiable time |
US8868914B2 (en) | 1999-07-02 | 2014-10-21 | Steven W. Teppler | System and methods for distributing trusted time |
US8019609B2 (en) | 1999-10-04 | 2011-09-13 | Dialware Inc. | Sonic/ultrasonic authentication method |
US6792536B1 (en) | 1999-10-20 | 2004-09-14 | Timecertain Llc | Smart card system and methods for proving dates in digital files |
US20050160272A1 (en) * | 1999-10-28 | 2005-07-21 | Timecertain, Llc | System and method for providing trusted time in content of digital data files |
US6581110B1 (en) * | 1999-12-07 | 2003-06-17 | International Business Machines Corporation | Method and system for reading and propagating authenticated time throughout a worldwide enterprise system |
US7124190B1 (en) * | 1999-12-21 | 2006-10-17 | Xerox Corporation | Method for verifying chronological integrity of an electronic time stamp |
WO2001061509A1 (en) * | 2000-02-18 | 2001-08-23 | Cedere Corporation | Real time mesh measurement system stream latency and jitter measurements |
JP2001282105A (en) * | 2000-03-27 | 2001-10-12 | Internatl Business Mach Corp <Ibm> | Certification method for electronic contents, system and medium with recorded program |
JP3755394B2 (en) * | 2000-09-29 | 2006-03-15 | 日本電気株式会社 | Electronic commerce audit system, electronic commerce audit method, and recording medium recording electronic commerce audit program |
US9219708B2 (en) * | 2001-03-22 | 2015-12-22 | DialwareInc. | Method and system for remotely authenticating identification devices |
US20020186619A1 (en) * | 2001-05-07 | 2002-12-12 | Reeves Michael H. | Apparatus, system and method for synchronizing a clock with a master time service |
WO2002095609A1 (en) * | 2001-05-24 | 2002-11-28 | Cqos, Inc. | Network metric system |
FI115811B (en) * | 2001-06-27 | 2005-07-15 | Nokia Corp | Procedure for checking time data, system and terminal |
US7681034B1 (en) | 2001-12-12 | 2010-03-16 | Chang-Ping Lee | Method and apparatus for securing electronic data |
US7380120B1 (en) | 2001-12-12 | 2008-05-27 | Guardian Data Storage, Llc | Secured data format for access control |
US7260555B2 (en) | 2001-12-12 | 2007-08-21 | Guardian Data Storage, Llc | Method and architecture for providing pervasive security to digital assets |
US7478418B2 (en) * | 2001-12-12 | 2009-01-13 | Guardian Data Storage, Llc | Guaranteed delivery of changes to security policies in a distributed system |
US7921450B1 (en) | 2001-12-12 | 2011-04-05 | Klimenty Vainstein | Security system using indirect key generation from access rules and methods therefor |
US7783765B2 (en) | 2001-12-12 | 2010-08-24 | Hildebrand Hal S | System and method for providing distributed access control to secured documents |
US7930756B1 (en) | 2001-12-12 | 2011-04-19 | Crocker Steven Toye | Multi-level cryptographic transformations for securing digital assets |
US7565683B1 (en) | 2001-12-12 | 2009-07-21 | Weiqing Huang | Method and system for implementing changes to security policies in a distributed security system |
USRE41546E1 (en) | 2001-12-12 | 2010-08-17 | Klimenty Vainstein | Method and system for managing security tiers |
US10360545B2 (en) | 2001-12-12 | 2019-07-23 | Guardian Data Storage, Llc | Method and apparatus for accessing secured electronic data off-line |
US10033700B2 (en) | 2001-12-12 | 2018-07-24 | Intellectual Ventures I Llc | Dynamic evaluation of access rights |
US8065713B1 (en) | 2001-12-12 | 2011-11-22 | Klimenty Vainstein | System and method for providing multi-location access management to secured items |
US7921288B1 (en) | 2001-12-12 | 2011-04-05 | Hildebrand Hal S | System and method for providing different levels of key security for controlling access to secured items |
US7178033B1 (en) | 2001-12-12 | 2007-02-13 | Pss Systems, Inc. | Method and apparatus for securing digital assets |
US7921284B1 (en) | 2001-12-12 | 2011-04-05 | Gary Mark Kinghorn | Method and system for protecting electronic data in enterprise environment |
US8006280B1 (en) | 2001-12-12 | 2011-08-23 | Hildebrand Hal S | Security system for generating keys from access rules in a decentralized manner and methods therefor |
US7950066B1 (en) | 2001-12-21 | 2011-05-24 | Guardian Data Storage, Llc | Method and system for restricting use of a clipboard application |
US8176334B2 (en) | 2002-09-30 | 2012-05-08 | Guardian Data Storage, Llc | Document security system that permits external users to gain access to secured files |
US8613102B2 (en) | 2004-03-30 | 2013-12-17 | Intellectual Ventures I Llc | Method and system for providing document retention using cryptography |
US7146504B2 (en) * | 2002-06-13 | 2006-12-05 | Microsoft Corporation | Secure clock on computing device such as may be required in connection with a trust-based system |
US7461163B2 (en) * | 2002-08-16 | 2008-12-02 | Infrastructure Innovations Llc | Real time mesh measurement system stream latency and jitter measurements |
US7512810B1 (en) | 2002-09-11 | 2009-03-31 | Guardian Data Storage Llc | Method and system for protecting encrypted files transmitted over a network |
US7836310B1 (en) | 2002-11-01 | 2010-11-16 | Yevgeniy Gutnik | Security system that uses indirect password-based encryption |
US8473355B2 (en) * | 2002-12-06 | 2013-06-25 | Facebook, Inc. | System and method for electronic wallet conversion |
US7103072B1 (en) * | 2002-12-19 | 2006-09-05 | Occam Networks | System and method for synchronization of devices across a packet network |
US7890990B1 (en) | 2002-12-20 | 2011-02-15 | Klimenty Vainstein | Security system with staging capabilities |
US7076802B2 (en) * | 2002-12-31 | 2006-07-11 | Intel Corporation | Trusted system clock |
US20040192343A1 (en) * | 2003-01-28 | 2004-09-30 | Kentaro Toyama | System and method for location annotation employing time synchronization |
US7370212B2 (en) | 2003-02-25 | 2008-05-06 | Microsoft Corporation | Issuing a publisher use license off-line in a digital rights management (DRM) system |
US8707034B1 (en) | 2003-05-30 | 2014-04-22 | Intellectual Ventures I Llc | Method and system for using remote headers to secure electronic files |
US9412123B2 (en) | 2003-07-01 | 2016-08-09 | The 41St Parameter, Inc. | Keystroke analysis |
US7145438B2 (en) | 2003-07-24 | 2006-12-05 | Hunt Technologies, Inc. | Endpoint event processing system |
US7236765B2 (en) * | 2003-07-24 | 2007-06-26 | Hunt Technologies, Inc. | Data communication over power lines |
US7742393B2 (en) * | 2003-07-24 | 2010-06-22 | Hunt Technologies, Inc. | Locating endpoints in a power line communication system |
US7180412B2 (en) * | 2003-07-24 | 2007-02-20 | Hunt Technologies, Inc. | Power line communication system having time server |
US8127366B2 (en) | 2003-09-30 | 2012-02-28 | Guardian Data Storage, Llc | Method and apparatus for transitioning between states of security policies used to secure electronic documents |
US7703140B2 (en) | 2003-09-30 | 2010-04-20 | Guardian Data Storage, Llc | Method and system for securing digital assets using process-driven security policies |
US20050110880A1 (en) * | 2003-11-26 | 2005-05-26 | Eastman Kodak Company | Method for correcting the date/time metadata in digital image files |
US7702909B2 (en) * | 2003-12-22 | 2010-04-20 | Klimenty Vainstein | Method and system for validating timestamps |
US10999298B2 (en) * | 2004-03-02 | 2021-05-04 | The 41St Parameter, Inc. | Method and system for identifying users and detecting fraud by use of the internet |
US20060010072A1 (en) * | 2004-03-02 | 2006-01-12 | Ori Eisen | Method and system for identifying users and detecting fraud by use of the Internet |
US20050195862A1 (en) * | 2004-03-02 | 2005-09-08 | Sbc Knowledge Ventures, L.P. | System and method for transparent adjustment of a network node timing component |
US7065679B2 (en) * | 2004-03-24 | 2006-06-20 | Hitachi, Ltd. | Reasonable clock adjustment for storage system |
US20060002556A1 (en) * | 2004-06-30 | 2006-01-05 | Microsoft Corporation | Secure certificate enrollment of device over a cellular network |
US7707427B1 (en) | 2004-07-19 | 2010-04-27 | Michael Frederick Kenrich | Multi-level file digests |
US7340610B1 (en) | 2004-08-31 | 2008-03-04 | Hitachi, Ltd. | Trusted time stamping storage system |
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 |
US20060075247A1 (en) * | 2004-09-27 | 2006-04-06 | Sharp Laboratories Of America, Inc. | System and method for establishing an authenticated timestamp and content certification |
US7468981B2 (en) * | 2005-02-15 | 2008-12-23 | Cisco Technology, Inc. | Clock-based replay protection |
US8438645B2 (en) | 2005-04-27 | 2013-05-07 | Microsoft Corporation | Secure clock with grace periods |
US8725646B2 (en) | 2005-04-15 | 2014-05-13 | Microsoft Corporation | Output protection levels |
US20060265758A1 (en) | 2005-05-20 | 2006-11-23 | Microsoft Corporation | Extensible media rights |
US7430607B2 (en) * | 2005-05-25 | 2008-09-30 | Microsoft Corporation | Source throttling using CPU stamping |
US8327448B2 (en) * | 2005-06-22 | 2012-12-04 | Intel Corporation | Protected clock management based upon a non-trusted persistent time source |
US8412804B2 (en) * | 2005-07-29 | 2013-04-02 | Cisco Technology, Inc. | Acquiring information in a communication network relative to a location |
WO2007016452A2 (en) * | 2005-08-01 | 2007-02-08 | Cisco Technology, Inc. | Technique for displaying information ancillary to a location of an entity in a communication network |
US8312538B2 (en) * | 2005-08-30 | 2012-11-13 | Passlogy Co., Ltd. | Site check method |
US7926096B2 (en) * | 2005-08-31 | 2011-04-12 | Gemalto Sa | Enforcing time-based transaction policies on devices lacking independent clocks |
US7861308B2 (en) * | 2005-11-28 | 2010-12-28 | Sony Corporation | Digital rights management using trusted time |
US11301585B2 (en) | 2005-12-16 | 2022-04-12 | The 41St Parameter, Inc. | Methods and apparatus for securely displaying digital images |
US8938671B2 (en) | 2005-12-16 | 2015-01-20 | The 41St Parameter, Inc. | Methods and apparatus for securely displaying digital images |
EP1987650A2 (en) * | 2006-02-22 | 2008-11-05 | Axalto SA | An authentication token for identifying a cloning attack onto such authentication token |
JP4434169B2 (en) * | 2006-03-30 | 2010-03-17 | ブラザー工業株式会社 | Information processing apparatus and program |
US8151327B2 (en) | 2006-03-31 | 2012-04-03 | The 41St Parameter, Inc. | Systems and methods for detection of session tampering and fraud prevention |
US10528705B2 (en) | 2006-05-09 | 2020-01-07 | Apple Inc. | Determining validity of subscription to use digital content |
JP2007304982A (en) * | 2006-05-12 | 2007-11-22 | Canon Inc | Electronic document management device, electronic document management method, and computer program |
GB0622149D0 (en) * | 2006-11-07 | 2006-12-20 | Singlepoint Holdings Ltd | System and method to validate and authenticate digital data |
US9060012B2 (en) * | 2007-09-26 | 2015-06-16 | The 41St Parameter, Inc. | Methods and apparatus for detecting fraud with time based computer tags |
US20090189441A1 (en) * | 2008-01-29 | 2009-07-30 | Paul Degoul | Distributed electrical/electronic architectures for brake-by-wire brake systems |
JP5045472B2 (en) * | 2008-02-07 | 2012-10-10 | 富士通株式会社 | Mail management apparatus, mail management method, and mail management program |
US8145910B1 (en) * | 2008-02-29 | 2012-03-27 | Adobe Systems Incorporated | System and method to enforce collaboration rules for timestamps of a collaboration event |
US8769675B2 (en) * | 2008-05-13 | 2014-07-01 | Apple Inc. | Clock roll forward detection |
US7822876B1 (en) * | 2008-06-30 | 2010-10-26 | Amazon Technologies, Inc. | Time based content management for disconnected devices |
US9390384B2 (en) * | 2008-07-01 | 2016-07-12 | The 41 St Parameter, Inc. | Systems and methods of sharing information through a tagless device consortium |
JP5117317B2 (en) * | 2008-08-06 | 2013-01-16 | セイコープレシジョン株式会社 | Time recorder |
US8374930B2 (en) * | 2009-02-02 | 2013-02-12 | Trustifi Corporation | Certified email system and method |
US9112850B1 (en) | 2009-03-25 | 2015-08-18 | The 41St Parameter, Inc. | Systems and methods of sharing information through a tag-based consortium |
US20100250949A1 (en) * | 2009-03-31 | 2010-09-30 | Torino Maria E | Generation, requesting, and/or reception, at least in part, of token |
US8341023B2 (en) * | 2009-06-17 | 2012-12-25 | Trustifi Corporation | Certified email system and method |
US9536109B2 (en) * | 2009-10-21 | 2017-01-03 | International Business Machines Corporation | Method and system for administering a secure data repository |
US8959030B2 (en) * | 2010-02-12 | 2015-02-17 | Avaya Inc. | Timeminder for professionals |
US8898219B2 (en) * | 2010-02-12 | 2014-11-25 | Avaya Inc. | Context sensitive, cloud-based telephony |
EP2405621B1 (en) * | 2010-07-07 | 2013-08-28 | Siemens Aktiengesellschaft | A method of time synchronization communication |
US9361597B2 (en) | 2010-10-19 | 2016-06-07 | The 41St Parameter, Inc. | Variable risk engine |
EP2633462B1 (en) * | 2010-10-27 | 2019-08-07 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | Protecting data integrity with storage leases |
US8677134B2 (en) * | 2010-11-11 | 2014-03-18 | Microsoft Corporation | HTTP signing |
JP5704322B2 (en) * | 2011-03-10 | 2015-04-22 | セイコーエプソン株式会社 | Image generating apparatus, projector and image generating method |
US10754913B2 (en) | 2011-11-15 | 2020-08-25 | Tapad, Inc. | System and method for analyzing user device information |
EP2615772A1 (en) * | 2012-01-10 | 2013-07-17 | Thomson Licensing | Method and device for timestamping data and method and device for verification of a timestamp |
US9633201B1 (en) | 2012-03-01 | 2017-04-25 | The 41St Parameter, Inc. | Methods and systems for fraud containment |
US9521551B2 (en) | 2012-03-22 | 2016-12-13 | The 41St Parameter, Inc. | Methods and systems for persistent cross-application mobile device identification |
EP2880619A1 (en) | 2012-08-02 | 2015-06-10 | The 41st Parameter, Inc. | Systems and methods for accessing records via derivative locators |
US9673983B2 (en) | 2012-09-14 | 2017-06-06 | Qualcomm Incorporated | Apparatus and method for protecting message data |
WO2014078569A1 (en) | 2012-11-14 | 2014-05-22 | The 41St Parameter, Inc. | Systems and methods of global identification |
US10902327B1 (en) | 2013-08-30 | 2021-01-26 | The 41St Parameter, Inc. | System and method for device identification and uniqueness |
US9225746B2 (en) * | 2013-12-12 | 2015-12-29 | International Business Machines Corporation | Timestamp systems and methods |
US9223960B1 (en) * | 2014-07-31 | 2015-12-29 | Winbond Electronics Corporation | State-machine clock tampering detection |
US10091312B1 (en) | 2014-10-14 | 2018-10-02 | The 41St Parameter, Inc. | Data structures for intelligently resolving deterministic and probabilistic device identifiers to device profiles and/or groups |
US11258855B2 (en) | 2014-10-17 | 2022-02-22 | Florida Power & Light Company | System and method for analyzing and monitoring smart meter network communications |
US10069839B2 (en) * | 2016-02-11 | 2018-09-04 | Microsoft Technology Licensing, Llc | Determine approximate current time on a client using secure protocol metadata |
US11539518B2 (en) * | 2017-05-17 | 2022-12-27 | Apple Inc. | Time-based encryption key derivation |
WO2020051226A1 (en) * | 2018-09-05 | 2020-03-12 | Whitefox Defense Technologies, Inc. | Integrated secure device manager systems and methods for cyber-physical vehicles |
US11164206B2 (en) * | 2018-11-16 | 2021-11-02 | Comenity Llc | Automatically aggregating, evaluating, and providing a contextually relevant offer |
CN109726597B (en) * | 2018-12-29 | 2020-12-08 | 杭州趣链科技有限公司 | Trusted timestamp system based on block chain |
US11070379B2 (en) | 2019-04-18 | 2021-07-20 | Advanced New Technologies Co., Ltd. | Signature verification for a blockchain ledger |
CN110163006B (en) * | 2019-04-18 | 2020-07-07 | 阿里巴巴集团控股有限公司 | Signature verification method, system, device and equipment in block chain type account book |
US11023602B2 (en) * | 2019-04-24 | 2021-06-01 | EMC IP Holding Company LLC | Preventing digital forgery |
US11522717B2 (en) | 2019-07-23 | 2022-12-06 | Signa Tech Llc | Signature token system |
US20230353382A1 (en) * | 2022-04-29 | 2023-11-02 | Nxp B.V. | Embedded system support for secure time-aware authentication, acting and sensing devices |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5500897A (en) * | 1993-07-22 | 1996-03-19 | International Business Machines Corporation | Client/server based secure timekeeping system |
US5923763A (en) * | 1996-03-21 | 1999-07-13 | Walker Asset Management Limited Partnership | Method and apparatus for secure document timestamping |
US6148082A (en) * | 1998-01-14 | 2000-11-14 | Skystream Corporation | Scrambling and descrambling control word control in a remultiplexer for video bearing transport streams |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4709347A (en) | 1984-12-17 | 1987-11-24 | Honeywell Inc. | Method and apparatus for synchronizing the timing subsystems of the physical modules of a local area network |
US4914657A (en) | 1987-04-15 | 1990-04-03 | Allied-Signal Inc. | Operations controller for a fault tolerant multiple node processing system |
US5027297A (en) | 1989-09-29 | 1991-06-25 | Abb Power T & D Company Inc. | System for time stamping events using a remote master clock |
US5001752A (en) | 1989-10-13 | 1991-03-19 | Fischer Addison M | Public/key date-time notary facility |
US5136647A (en) | 1990-08-02 | 1992-08-04 | Bell Communications Research, Inc. | Method for secure time-stamping of digital documents |
US5504878A (en) | 1991-02-04 | 1996-04-02 | International Business Machines Corporation | Method and apparatus for synchronizing plural time-of-day (TOD) clocks with a central TOD reference over non-dedicated serial links using an on-time event (OTE) character |
US5323315A (en) | 1991-08-02 | 1994-06-21 | Vintek, Inc. | Computer system for monitoring the status of individual items of personal property which serve as collateral for securing financing |
US5386542A (en) | 1991-10-31 | 1995-01-31 | International Business Machines Corporation | System for generating a time reference value in the MAC layer of an ISO/OSI communications model among a plurality of nodes |
US5422953A (en) | 1993-05-05 | 1995-06-06 | Fischer; Addison M. | Personal date/time notary device |
US6408388B1 (en) * | 1993-05-05 | 2002-06-18 | Addison M. Fischer | Personal date/time notary device |
US5689688A (en) | 1993-11-16 | 1997-11-18 | International Business Machines Corporation | Probabilistic anonymous clock synchronization method and apparatus for synchronizing a local time scale with a reference time scale |
US5768382A (en) | 1995-11-22 | 1998-06-16 | Walker Asset Management Limited Partnership | Remote-auditing of computer generated outcomes and authenticated biling and access control system using cryptographic and other protocols |
US5748740A (en) | 1995-09-29 | 1998-05-05 | Dallas Semiconductor Corporation | Method, apparatus, system and firmware for secure transactions |
US5745574A (en) | 1995-12-15 | 1998-04-28 | Entegrity Solutions Corporation | Security infrastructure for electronic transactions |
US7039805B1 (en) * | 1998-05-20 | 2006-05-02 | Messing John H | Electronic signature method |
US6742119B1 (en) * | 1999-12-10 | 2004-05-25 | International Business Machines Corporation | Time stamping method using time delta in key certificate |
-
2000
- 2000-02-22 US US09/510,408 patent/US6393126B1/en not_active Expired - Lifetime
-
2001
- 2001-02-22 EP EP01916205A patent/EP1279287A1/en not_active Withdrawn
- 2001-02-22 WO PCT/US2001/005919 patent/WO2001063927A1/en not_active Application Discontinuation
- 2001-02-22 JP JP2001562020A patent/JP2003524348A/en not_active Withdrawn
-
2002
- 2002-01-10 US US10/043,811 patent/US20020056042A1/en not_active Abandoned
- 2002-08-20 CA CA002398415A patent/CA2398415A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5500897A (en) * | 1993-07-22 | 1996-03-19 | International Business Machines Corporation | Client/server based secure timekeeping system |
US5923763A (en) * | 1996-03-21 | 1999-07-13 | Walker Asset Management Limited Partnership | Method and apparatus for secure document timestamping |
US6148082A (en) * | 1998-01-14 | 2000-11-14 | Skystream Corporation | Scrambling and descrambling control word control in a remultiplexer for video bearing transport streams |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1361695A2 (en) * | 2002-05-08 | 2003-11-12 | Hitachi, Ltd. | Time stamp generating system |
EP1361695A3 (en) * | 2002-05-08 | 2005-09-21 | Hitachi, Ltd. | Time stamp generating system |
US7200682B2 (en) | 2002-05-08 | 2007-04-03 | Hitachi, Ltd. | Time stamp generating system |
US7555651B2 (en) | 2003-05-28 | 2009-06-30 | Fujitsu Limited | Time management apparatus and time management method |
EP1841124A1 (en) * | 2006-03-28 | 2007-10-03 | Nokia Siemens Networks Gmbh & Co. Kg | Flexible generation of trusted time sources |
EP2552048A1 (en) * | 2010-03-25 | 2013-01-30 | Kei Communication Technology Inc. | Measurement data management method and measurement data management system |
EP2552048A4 (en) * | 2010-03-25 | 2013-12-25 | Kei Comm Technology Inc | Measurement data management method and measurement data management system |
US8701209B2 (en) | 2010-03-25 | 2014-04-15 | Kei Communication Technology Inc. | Measurement data management and authentication method and measurement data management and authentication system |
CN103281292A (en) * | 2012-01-10 | 2013-09-04 | 汤姆森特许公司 | Method and device for timestamping data and method and device for verification of a timestamp |
Also Published As
Publication number | Publication date |
---|---|
JP2003524348A (en) | 2003-08-12 |
US6393126B1 (en) | 2002-05-21 |
US20020056042A1 (en) | 2002-05-09 |
CA2398415A1 (en) | 2004-02-20 |
EP1279287A1 (en) | 2003-01-29 |
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