GB201620684D0 - Memory protection logic - Google Patents

Memory protection logic

Info

Publication number
GB201620684D0
GB201620684D0 GBGB1620684.9A GB201620684A GB201620684D0 GB 201620684 D0 GB201620684 D0 GB 201620684D0 GB 201620684 A GB201620684 A GB 201620684A GB 201620684 D0 GB201620684 D0 GB 201620684D0
Authority
GB
United Kingdom
Prior art keywords
memory protection
protection logic
logic
memory
protection
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Withdrawn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
GBGB1620684.9A
Other versions
GB2557305A (en
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.)
Nordic Semiconductor ASA
Original Assignee
Nordic Semiconductor ASA
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 Nordic Semiconductor ASA filed Critical Nordic Semiconductor ASA
Priority to GB1620684.9A priority Critical patent/GB2557305A/en
Publication of GB201620684D0 publication Critical patent/GB201620684D0/en
Priority to PCT/GB2017/053644 priority patent/WO2018104711A1/en
Priority to TW106142391A priority patent/TW201821998A/en
Publication of GB2557305A publication Critical patent/GB2557305A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1416—Protection 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1416—Protection 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
    • G06F12/1425—Protection 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1416—Protection 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
    • G06F12/1425—Protection 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
    • G06F12/1441—Protection 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 range
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1458—Protection against unauthorised use of memory or access to memory by checking the subject access rights
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1458—Protection against unauthorised use of memory or access to memory by checking the subject access rights
    • G06F12/1491—Protection against unauthorised use of memory or access to memory by checking the subject access rights in a hierarchical protection system, e.g. privilege levels, memory rings
    • 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
    • G06F21/74—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 operating in dual or compartmented mode, i.e. at least one secure mode
    • 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
    • G06F21/78—Protecting 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
    • 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
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/85—Protecting input, output or interconnection devices interconnection devices, e.g. bus-connected or in-line devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/4401—Bootstrapping

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Mathematical Physics (AREA)
  • Storage Device Security (AREA)
GB1620684.9A 2016-12-05 2016-12-05 Memory protection logic Withdrawn GB2557305A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1620684.9A GB2557305A (en) 2016-12-05 2016-12-05 Memory protection logic
PCT/GB2017/053644 WO2018104711A1 (en) 2016-12-05 2017-12-04 Memory protection logic
TW106142391A TW201821998A (en) 2016-12-05 2017-12-04 Memory protection logic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1620684.9A GB2557305A (en) 2016-12-05 2016-12-05 Memory protection logic

Publications (2)

Publication Number Publication Date
GB201620684D0 true GB201620684D0 (en) 2017-01-18
GB2557305A GB2557305A (en) 2018-06-20

Family

ID=58159856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1620684.9A Withdrawn GB2557305A (en) 2016-12-05 2016-12-05 Memory protection logic

Country Status (3)

Country Link
GB (1) GB2557305A (en)
TW (1) TW201821998A (en)
WO (1) WO2018104711A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201810533D0 (en) * 2018-06-27 2018-08-15 Nordic Semiconductor Asa Hardware protection of files in an intergrated-circuit device
TWI688861B (en) * 2018-09-18 2020-03-21 新唐科技股份有限公司 Data processing apparatus and data protection method thereof
CN109739673B (en) * 2018-12-05 2023-05-09 新华三技术有限公司合肥分公司 Register write-in protection method, logic device and communication equipment
GB2596102B (en) 2020-06-17 2022-06-29 Graphcore Ltd Processing device comprising control bus
GB2596103B (en) 2020-06-17 2022-06-15 Graphcore Ltd Dual level management
US11809334B2 (en) 2021-01-19 2023-11-07 Cirrus Logic Inc. Integrated circuit with asymmetric access privileges
WO2022157467A1 (en) * 2021-01-19 2022-07-28 Cirrus Logic International Semiconductor Limited Integrated circuit with asymmetric access privileges
US11386019B1 (en) * 2021-04-06 2022-07-12 Mediatek Inc. Data protection method and storage device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5778444A (en) * 1996-05-06 1998-07-07 Motorola, Inc. Method and apparatus for reset-sensitive and controlled register write accesses in a data processing system with user and test modes
EP1276033B1 (en) * 2001-07-10 2012-03-14 Trident Microsystems (Far East) Ltd. Memory device with data protection in a processor
US7313705B2 (en) * 2002-01-22 2007-12-25 Texas Instrument Incorporated Implementation of a secure computing environment by using a secure bootloader, shadow memory, and protected memory
GB2402785B (en) * 2002-11-18 2005-12-07 Advanced Risc Mach Ltd Processor switching between secure and non-secure modes
US20080263256A1 (en) * 2007-04-20 2008-10-23 Motorola, Inc. Logic Device with Write Protected Memory Management Unit Registers
GB2513727B (en) * 2012-06-27 2015-06-24 Nordic Semiconductor Asa Memory protection
CN102929674B (en) * 2012-11-02 2016-02-10 威盛电子股份有限公司 Electronic installation and starting-up method
US9875358B2 (en) * 2014-06-20 2018-01-23 Microsoft Technology Licensing, Llc Preventing code modification after boot

Also Published As

Publication number Publication date
WO2018104711A1 (en) 2018-06-14
TW201821998A (en) 2018-06-16
GB2557305A (en) 2018-06-20

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)