DK2282280T3 - Fremgangsmåde og system til beskyttelse af indhold i et programmerbart system - Google Patents

Fremgangsmåde og system til beskyttelse af indhold i et programmerbart system Download PDF

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Publication number
DK2282280T3
DK2282280T3 DK10011274.7T DK10011274T DK2282280T3 DK 2282280 T3 DK2282280 T3 DK 2282280T3 DK 10011274 T DK10011274 T DK 10011274T DK 2282280 T3 DK2282280 T3 DK 2282280T3
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Denmark
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access port
access
mode
asic
access mode
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DK10011274.7T
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English (en)
Inventor
Dustin Griesdorf
Alan Rooks
Jakob Nielsen
Todd Schneider
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Semiconductor Components Ind Llc
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Publication of DK2282280T3 publication Critical patent/DK2282280T3/da

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/79Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317Testing of digital circuits
    • G01R31/31719Security aspects, e.g. preventing unauthorised access during test
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14Protection against unauthorised use of memory or access to memory
    • G06F12/1416Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
    • G06F12/1425Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block
    • G06F12/1433Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block for a module or a part of a module
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/71Protecting 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
    • G06F21/74Protecting 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 operating in dual or compartmented mode, i.e. at least one secure mode
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/70Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21Indexing 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
    • G06F2221/2105Dual mode as a secondary aspect
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21Indexing 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
    • G06F2221/2143Clearing memory, e.g. to prevent the data from being stolen
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/61Aspects relating to mechanical or electronic switches or control elements, e.g. functioning
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/55Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
    • H04R25/556External connectors, e.g. plugs or modules

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Storage Device Security (AREA)

Claims (10)

1. Fremgangsmåde til beskyttelse af indhold indlejret i et programmerbart system, hvilket system har mindst ét applikationsspecifikt integreret kredsløb (ASIC), der udfører en applikation, og et ikke-flygtigt (NV) lagerelement, der tilgås via ASIC, og som indbefatter et beskyttet område og et ubeskyttet område til lagring af indhold, hvor ASIC og NV-lagerelementet er indkapslet indvendigt i systemet, hvilken fremgangsmåde omfatter følgende trin: tildeling af mindst én af en flerhed af adgangsmodi til mindst én adgangsport til det programmerbare system til modtagelse af adgangsportkommandoer fra en ekstern enhed, hvilke adgangsmodi mindst indbefatter: en ubegrænset adgangsmodus, hvori: modtagne adgangsportkommandoer udføres; og en begrænset adgangsmodus, hvori: modtagne adgangsportkommandoer udføres, hvis de modtagne adgangsportkommandoer ikke er forbundet med læsning fra eller skrivning til det beskyttede område; og modtagne adgangsportkommandoer ikke udføres og et dummy-svar tilvejebringes, når de modtagne adgangsportkommandoer er forbundet med læsning fra eller skrivning til det beskyttede område; modtagelse af én eller flere adgangsportkommandoer tilvejebragt af den eksterne enhed ved adgangsporten og udførelse eller ikke-udførelse af hver af den ene eller flere adgangsportkommandoer i overensstemmelse med den adgangsmodus, der er tildelt adgangsporten; og omkobling af den begrænsede adgangsmodus til den ubegrænsede adgangsmodus uden eksponering af indholdet af det beskyttede område for den eksterne enhed via adgangsporten ved sletning eller tilsløring af indholdet af det beskyttede område.
2. Fremgangsmåde ifølge krav 1, hvor omkoblingstrinnnet omfatter sletning af indholdet af det beskyttede område før omkobling af den begrænsede adgangsmodus til den ubegrænsede adgangsmodus.
3. Fremgangsmåde ifølge krav 1 eller 2, hvor de adgangsportkommandoer, der udføres i den begrænsede modus, omfatter: en adgangsportkommando til læsning af indhold fra det ubeskyttede område; eller en adgangsportkommando til skrivning af indhold til det ubeskyttede område.
4. Fremgangsmåde ifølge et hvilket som helst af kravene 1 til 3, hvor de adgangsportkommandoer, der udføres i den ubegrænsede adgangsmodus, udføres via én eller flere af adgangsportens indbyggede funktioner, og hvor den ene eller flere af adgangsportens indbyggede funktioner er deaktiverede i den begrænsede adgangsmodus.
5. Fremgangsmåde ifølge et hvilket som helst af kravene 1 til 4, hvor det programmerbare system er en hybrid til udførelse afen hørehjælpsapplikation.
6. Fremgangsmåde ifølge krav 5, hvor indholdet af det ubeskyttede område omfatter tilpasningsinformationer til konfiguration af behandling afhørehjælpen, og hvor indholdet af det beskyttede område omfatter applikationskode til udførelse af behandling afhørehjælpen.
7. Programmerbart system til implementering afen applikation og som kan indgås fra en ekstern enhed via mindst én adgangsport, der omfatter: mindst et applikationsspecifikt integreret kredsløb (ASIC), der udfører en applikation; et ikke-flygtigt (NV) lagerelement, der omfatter et beskyttet område og et ubeskyttet område til lagring af informationer på applikationen; og et hus til indkapsling af ASIC og NV-lagerelementet indvendigt i systemet, hvor ASIC er konfigureret til at tilvejebringe en fremgangsmåde til indholdsbeskyttelse ifølge et hvilket som helst af kravene 1 til 6.
8. System ifølge krav 7, hvor ASIC indbefatter et register til lagring af en aktuel adgangsmodus og som opdateres som reaktion på en adgangsportkommando.
9. System ifølge krav 7 eller 8, hvor NV-lagerelementet er indlejret i ASIC, og/eller hvor systemet indbefatter mindst to ASIC, der indbefatter et første ASIC med en analog signalbehandling og et andet ASIC med en digital signalprocessor.
10. System ifølge et hvilket som helst af kravene 7 til 9, hvor systemet er en hybrid til udførelse afen hørehjælpsapplikation.
DK10011274.7T 2004-03-30 2005-03-30 Fremgangsmåde og system til beskyttelse af indhold i et programmerbart system DK2282280T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002462495A CA2462495A1 (en) 2004-03-30 2004-03-30 Method and system for protecting content in a programmable system
EP05006951.7A EP1582958B1 (en) 2004-03-30 2005-03-30 Method and system for protecting content in a programmable system

Publications (1)

Publication Number Publication Date
DK2282280T3 true DK2282280T3 (da) 2018-09-10

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Family Applications (2)

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DK10011274.7T DK2282280T3 (da) 2004-03-30 2005-03-30 Fremgangsmåde og system til beskyttelse af indhold i et programmerbart system
DK05006951.7T DK1582958T3 (da) 2004-03-30 2005-03-30 Fremgangsmåde og system til beskyttelse af indhold i et programmerbart system

Family Applications After (1)

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US (1) US8302159B2 (da)
EP (2) EP2282280B1 (da)
CA (2) CA2462495A1 (da)
DK (2) DK2282280T3 (da)
WO (1) WO2005096156A1 (da)

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Also Published As

Publication number Publication date
EP1582958B1 (en) 2013-12-18
EP1582958A2 (en) 2005-10-05
EP2282280A1 (en) 2011-02-09
EP2282280B1 (en) 2018-08-15
US8302159B2 (en) 2012-10-30
CA2561880A1 (en) 2005-10-13
EP1582958A3 (en) 2006-05-31
US20050235354A1 (en) 2005-10-20
CA2462495A1 (en) 2005-09-30
CA2561880C (en) 2014-07-15
DK1582958T3 (da) 2014-02-24
WO2005096156A1 (en) 2005-10-13

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