EP2087428A2 - Verfahren zur steuerung der ausführung eines programms durch einen mikrocontroller - Google Patents

Verfahren zur steuerung der ausführung eines programms durch einen mikrocontroller

Info

Publication number
EP2087428A2
EP2087428A2 EP07822611A EP07822611A EP2087428A2 EP 2087428 A2 EP2087428 A2 EP 2087428A2 EP 07822611 A EP07822611 A EP 07822611A EP 07822611 A EP07822611 A EP 07822611A EP 2087428 A2 EP2087428 A2 EP 2087428A2
Authority
EP
European Patent Office
Prior art keywords
program
block
execution
controlling
ctrl
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP07822611A
Other languages
English (en)
French (fr)
Inventor
Christophe Gogniat
Michael John Hill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nagravision SARL
Original Assignee
NagraCard SA
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 NagraCard SA filed Critical NagraCard SA
Priority to EP07822611A priority Critical patent/EP2087428A2/de
Publication of EP2087428A2 publication Critical patent/EP2087428A2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/28—Error detection; Error correction; Monitoring by checking the correct order of processing

Definitions

  • the present invention relates to the field of microcontrollers, in particular the field of securing the execution of a program by said microcontroller. More specifically, the invention proposes to prevent disturbances from revealing confidential information contained in a memory of the microcontroller or cooperating with it. This invention can in particular be applied to a microprocessor security module used in the field of conditional access television.
  • the use of several caches avoids, as long as the content of the second cache has been chosen, to wait for the content of this new cache is introduced.
  • the microcontroller according to the invention is such that only the content of the active cache is accessible by the processing unit. If the cache has a larger size than the program block that is introduced, it is possible to place in this cache instructions to carry out countermeasures. It is also possible to place countermeasures in a specific block.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Executing Machine-Instructions (AREA)
  • Debugging And Monitoring (AREA)
EP07822611A 2006-11-16 2007-11-15 Verfahren zur steuerung der ausführung eines programms durch einen mikrocontroller Withdrawn EP2087428A2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07822611A EP2087428A2 (de) 2006-11-16 2007-11-15 Verfahren zur steuerung der ausführung eines programms durch einen mikrocontroller

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06124175A EP1923789A1 (de) 2006-11-16 2006-11-16 Verfahren zur steurung der Ausführung eines Programms durch einen Mikrocontroller
PCT/EP2007/062364 WO2008059008A2 (fr) 2006-11-16 2007-11-15 Procédé de contrôle de l'exécution d'un programme par un microcontrôleur
EP07822611A EP2087428A2 (de) 2006-11-16 2007-11-15 Verfahren zur steuerung der ausführung eines programms durch einen mikrocontroller

Publications (1)

Publication Number Publication Date
EP2087428A2 true EP2087428A2 (de) 2009-08-12

Family

ID=38098638

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06124175A Withdrawn EP1923789A1 (de) 2006-11-16 2006-11-16 Verfahren zur steurung der Ausführung eines Programms durch einen Mikrocontroller
EP07822611A Withdrawn EP2087428A2 (de) 2006-11-16 2007-11-15 Verfahren zur steuerung der ausführung eines programms durch einen mikrocontroller

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06124175A Withdrawn EP1923789A1 (de) 2006-11-16 2006-11-16 Verfahren zur steurung der Ausführung eines Programms durch einen Mikrocontroller

Country Status (4)

Country Link
US (1) US8141145B2 (de)
EP (2) EP1923789A1 (de)
TW (1) TW200830177A (de)
WO (1) WO2008059008A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101944011B (zh) * 2010-06-29 2015-11-25 北京中星微电子有限公司 运行程序的装置、芯片和方法
GB2561881A (en) * 2017-04-27 2018-10-31 Airbus Group Ltd Microcontroller
FR3118219B1 (fr) * 2020-12-17 2024-03-15 Stmicroelectronics Grand Ouest Sas Procédé de protection d’un système, par exemple un microcontrôleur, et sytème correspondant

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2003418A1 (en) * 1988-12-29 1990-06-29 Louis A. Winans Computer message & screen communications in a multi-lingual network
US5729676A (en) * 1993-12-10 1998-03-17 Nec Corporation Method of generating data for evaluating programs
FR2790844B1 (fr) * 1999-03-09 2001-05-25 Gemplus Card Int Procede et dispositif de surveillance du deroulement d'un programme, dispositif programme permettant la surveillance de son programme
US6823507B1 (en) * 2000-06-06 2004-11-23 International Business Machines Corporation Detection of memory-related errors in computer programs
US20020138748A1 (en) * 2001-03-21 2002-09-26 Hung Andy C. Code checksums for relocatable code
US6880149B2 (en) * 2002-04-01 2005-04-12 Pace Anti-Piracy Method for runtime code integrity validation using code block checksums
FR2841015A1 (fr) * 2002-06-18 2003-12-19 St Microelectronics Sa Controle d'execution d'un programme
WO2004001584A2 (en) * 2002-06-24 2003-12-31 Ante Vista Gmbh A method for executing structured symbolic machine code on a microprocessor
FR2864655B1 (fr) * 2003-12-31 2006-03-24 Trusted Logic Procede de controle d'integrite de programmes par verification d'empreintes de traces d'execution

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2008059008A2 *

Also Published As

Publication number Publication date
US20080120517A1 (en) 2008-05-22
WO2008059008A3 (fr) 2009-01-15
WO2008059008A2 (fr) 2008-05-22
EP1923789A1 (de) 2008-05-21
US8141145B2 (en) 2012-03-20
TW200830177A (en) 2008-07-16

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