JPH029373B2 - - Google Patents

Info

Publication number
JPH029373B2
JPH029373B2 JP60008076A JP807685A JPH029373B2 JP H029373 B2 JPH029373 B2 JP H029373B2 JP 60008076 A JP60008076 A JP 60008076A JP 807685 A JP807685 A JP 807685A JP H029373 B2 JPH029373 B2 JP H029373B2
Authority
JP
Japan
Prior art keywords
memory protection
code
interrupt
memory
protection code
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.)
Expired - Lifetime
Application number
JP60008076A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61166652A (ja
Inventor
Kazuhiko Ikeda
Makoto Kawamura
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.)
PFU Ltd
Original Assignee
PFU Ltd
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 PFU Ltd filed Critical PFU Ltd
Priority to JP60008076A priority Critical patent/JPS61166652A/ja
Priority to US06/819,787 priority patent/US4701846A/en
Publication of JPS61166652A publication Critical patent/JPS61166652A/ja
Publication of JPH029373B2 publication Critical patent/JPH029373B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
    • 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
    • G06F12/145—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 virtual, e.g. for virtual blocks or segments before a translation mechanism
    • 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
    • G06F9/46—Multiprogramming arrangements
    • G06F9/468—Specific access rights for resources, e.g. using capability register

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Storage Device Security (AREA)
  • Executing Machine-Instructions (AREA)
  • Debugging And Monitoring (AREA)
JP60008076A 1985-01-19 1985-01-19 記憶保護例外による割込み発生方式 Granted JPS61166652A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP60008076A JPS61166652A (ja) 1985-01-19 1985-01-19 記憶保護例外による割込み発生方式
US06/819,787 US4701846A (en) 1985-01-19 1986-01-17 Computer system capable of interruption using special protection code for write interruption region of memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60008076A JPS61166652A (ja) 1985-01-19 1985-01-19 記憶保護例外による割込み発生方式

Publications (2)

Publication Number Publication Date
JPS61166652A JPS61166652A (ja) 1986-07-28
JPH029373B2 true JPH029373B2 (US06826419-20041130-M00005.png) 1990-03-01

Family

ID=11683245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60008076A Granted JPS61166652A (ja) 1985-01-19 1985-01-19 記憶保護例外による割込み発生方式

Country Status (2)

Country Link
US (1) US4701846A (US06826419-20041130-M00005.png)
JP (1) JPS61166652A (US06826419-20041130-M00005.png)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8619989D0 (en) * 1986-08-16 1986-09-24 Modray Ltd Controlling length of time
US4977594A (en) * 1986-10-14 1990-12-11 Electronic Publishing Resources, Inc. Database usage metering and protection system and method
US5050213A (en) * 1986-10-14 1991-09-17 Electronic Publishing Resources, Inc. Database usage metering and protection system and method
US4975878A (en) * 1988-01-28 1990-12-04 National Semiconductor Programmable memory data protection scheme
US4947367A (en) * 1988-03-28 1990-08-07 Emc Corporation System for converting digital data from magnetic tape format apparatus and method for converting a sequentially accessible magnetic tape data format to directly accessible write-once disk data format to worm optical disk format
US6157721A (en) * 1996-08-12 2000-12-05 Intertrust Technologies Corp. Systems and methods using cryptography to protect secure computing environments
US5892900A (en) * 1996-08-30 1999-04-06 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US7133846B1 (en) 1995-02-13 2006-11-07 Intertrust Technologies Corp. Digital certificate support system, methods and techniques for secure electronic commerce transaction and rights management
CN101303717B (zh) * 1995-02-13 2015-04-29 英特特拉斯特技术公司 用于安全交易管理和电子权利保护的系统和方法
US5943422A (en) 1996-08-12 1999-08-24 Intertrust Technologies Corp. Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels
US6948070B1 (en) 1995-02-13 2005-09-20 Intertrust Technologies Corporation Systems and methods for secure transaction management and electronic rights protection
US6658568B1 (en) 1995-02-13 2003-12-02 Intertrust Technologies Corporation Trusted infrastructure support system, methods and techniques for secure electronic commerce transaction and rights management
US20010011253A1 (en) 1998-08-04 2001-08-02 Christopher D. Coley Automated system for management of licensed software
US6330648B1 (en) * 1996-05-28 2001-12-11 Mark L. Wambach Computer memory with anti-virus and anti-overwrite protection apparatus
US5920861A (en) * 1997-02-25 1999-07-06 Intertrust Technologies Corp. Techniques for defining using and manipulating rights management data structures
US6112181A (en) * 1997-11-06 2000-08-29 Intertrust Technologies Corporation Systems and methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information
US7233948B1 (en) 1998-03-16 2007-06-19 Intertrust Technologies Corp. Methods and apparatus for persistent control and protection of content
DE19846673A1 (de) * 1998-10-09 2000-04-20 Siemens Ag Verfahren zur Verbindung von Stackmanipulationsangriffen bei Funktionsaufrufen
US7243236B1 (en) 1999-07-29 2007-07-10 Intertrust Technologies Corp. Systems and methods for using cryptography to protect secure and insecure computing environments
US6895508B1 (en) * 2000-09-07 2005-05-17 International Business Machines Corporation Stack memory protection
US8364910B2 (en) * 2007-03-08 2013-01-29 Daniel Shawcross Wilkerson Hard object: hardware protection for software objects
US9934166B2 (en) 2010-12-10 2018-04-03 Daniel Shawcross Wilkerson Hard object: constraining control flow and providing lightweight kernel crossings
US9569612B2 (en) 2013-03-14 2017-02-14 Daniel Shawcross Wilkerson Hard object: lightweight hardware enforcement of encapsulation, unforgeability, and transactionality

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432050A (en) * 1978-10-02 1984-02-14 Honeywell Information Systems, Inc. Data processing system write protection mechanism

Also Published As

Publication number Publication date
US4701846A (en) 1987-10-20
JPS61166652A (ja) 1986-07-28

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