WO2007034373A3 - Time-controlled operation - Google Patents

Time-controlled operation Download PDF

Info

Publication number
WO2007034373A3
WO2007034373A3 PCT/IB2006/053255 IB2006053255W WO2007034373A3 WO 2007034373 A3 WO2007034373 A3 WO 2007034373A3 IB 2006053255 W IB2006053255 W IB 2006053255W WO 2007034373 A3 WO2007034373 A3 WO 2007034373A3
Authority
WO
WIPO (PCT)
Prior art keywords
operation time
time
control
mobile phone
computer
Prior art date
Application number
PCT/IB2006/053255
Other languages
French (fr)
Other versions
WO2007034373A2 (en
Inventor
Marc Vauclair
Original Assignee
Koninkl Philips Electronics Nv
Marc Vauclair
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 Koninkl Philips Electronics Nv, Marc Vauclair filed Critical Koninkl Philips Electronics Nv
Publication of WO2007034373A2 publication Critical patent/WO2007034373A2/en
Publication of WO2007034373A3 publication Critical patent/WO2007034373A3/en

Links

Classifications

    • 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
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/12—Protecting executable software
    • G06F21/14—Protecting executable software against software analysis or reverse engineering, e.g. by obfuscation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Technology Law (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Selective Calling Equipment (AREA)

Abstract

The present invention relates to a method and an device for enabling time- controlled operation of an object. A basic idea of the present invention is to control, in a deterministic manner, operation time of an object, e.g. an electronic appliance such as a mobile phone or a computer, a software program such as an echo-cancellation algorithm implemented in a mobile phone or a piece of executable code implemented on a computer, etc., resulting in a physical output signal. The manner in which the operation time is controlled should be obfuscated such that a malicious intruder cannot identify the control function that determines the operation time of the object by means of probing and/or reverse engineering the object to eliminate, remove or bypass the control function. Preferably, the actual control should be made as indistinguishable as possible from 'normal' processing.
PCT/IB2006/053255 2005-09-19 2006-09-13 Time-controlled operation WO2007034373A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05108580.1 2005-09-19
EP05108580 2005-09-19

Publications (2)

Publication Number Publication Date
WO2007034373A2 WO2007034373A2 (en) 2007-03-29
WO2007034373A3 true WO2007034373A3 (en) 2008-08-21

Family

ID=37889198

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/053255 WO2007034373A2 (en) 2005-09-19 2006-09-13 Time-controlled operation

Country Status (1)

Country Link
WO (1) WO2007034373A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5045268B2 (en) 2007-06-28 2012-10-10 ソニー株式会社 Reaction processing equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383143A (en) * 1994-03-30 1995-01-17 Motorola, Inc. Self re-seeding linear feedback shift register (LFSR) data processing system for generating a pseudo-random test bit stream and method of operation
WO1997024894A1 (en) * 1995-12-29 1997-07-10 Stx Corporation Nonreusable cellular telephone
US6057719A (en) * 1998-06-05 2000-05-02 International Business Machines Corporation Programmable, self-resetting divider

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383143A (en) * 1994-03-30 1995-01-17 Motorola, Inc. Self re-seeding linear feedback shift register (LFSR) data processing system for generating a pseudo-random test bit stream and method of operation
WO1997024894A1 (en) * 1995-12-29 1997-07-10 Stx Corporation Nonreusable cellular telephone
US6057719A (en) * 1998-06-05 2000-05-02 International Business Machines Corporation Programmable, self-resetting divider

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZANGER L M: "Law Review-still no agreement on repossession issues", IEEE SOFTWARE USA, vol. 9, no. 3, May 1992 (1992-05-01), pages 97 - 98, XP002432957, ISSN: 0740-7459 *

Also Published As

Publication number Publication date
WO2007034373A2 (en) 2007-03-29

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