IE55440B1 - Memory unit comprising a memory and a protection unit - Google Patents

Memory unit comprising a memory and a protection unit

Info

Publication number
IE55440B1
IE55440B1 IE1019/84A IE101984A IE55440B1 IE 55440 B1 IE55440 B1 IE 55440B1 IE 1019/84 A IE1019/84 A IE 1019/84A IE 101984 A IE101984 A IE 101984A IE 55440 B1 IE55440 B1 IE 55440B1
Authority
IE
Ireland
Prior art keywords
program
address
memory unit
words
memory
Prior art date
Application number
IE1019/84A
Other languages
English (en)
Other versions
IE841019L (en
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of IE841019L publication Critical patent/IE841019L/xx
Publication of IE55440B1 publication Critical patent/IE55440B1/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
    • G06F21/121—Restricting unauthorised execution of programs
    • G06F21/125—Restricting unauthorised execution of programs by manipulating the program code, e.g. source code, compiled code, interpreted code, machine code
    • 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
    • G06F21/121—Restricting unauthorised execution of programs
    • G06F21/123—Restricting unauthorised execution of programs by using dedicated hardware, e.g. dongles, smart cards, cryptographic processors, global positioning systems [GPS] devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Technology Law (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Storage Device Security (AREA)
IE1019/84A 1983-04-29 1984-04-26 Memory unit comprising a memory and a protection unit IE55440B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48741183A 1983-04-29 1983-04-29

Publications (2)

Publication Number Publication Date
IE841019L IE841019L (en) 1984-10-28
IE55440B1 true IE55440B1 (en) 1990-09-12

Family

ID=23935622

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1019/84A IE55440B1 (en) 1983-04-29 1984-04-26 Memory unit comprising a memory and a protection unit

Country Status (10)

Country Link
JP (1) JPS603024A (it)
CA (1) CA1213070A (it)
DE (1) DE3415209A1 (it)
FR (1) FR2545244B1 (it)
GB (1) GB2140592B (it)
HK (1) HK38788A (it)
IE (1) IE55440B1 (it)
IT (1) IT1209538B (it)
SE (1) SE462188B (it)
SG (1) SG10488G (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60177498A (ja) * 1984-02-23 1985-09-11 Fujitsu Ltd 半導体記憶装置
GB8507427D0 (en) * 1985-03-21 1985-05-01 Robertson J A Prevention of soft & hardware copying
DE3526130A1 (de) * 1985-07-22 1987-01-29 Lang Klaus Dipl Ing Digitaler programmschutzbaustein
EP1366404B1 (en) 2000-07-18 2007-03-14 Simplex Major SDN.BHD Digital data protection arrangement
FR2823398B1 (fr) 2001-04-04 2003-08-15 St Microelectronics Sa Extraction d'une donnee privee pour authentification d'un circuit integre
FR2825873A1 (fr) * 2001-06-11 2002-12-13 St Microelectronics Sa Stockage protege d'une donnee dans un circuit integre

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120030A (en) * 1977-03-11 1978-10-10 Kearney & Trecker Corporation Computer software security system
US4306289A (en) * 1980-02-04 1981-12-15 Western Electric Company, Inc. Digital computer having code conversion apparatus for an encrypted program
US4377844A (en) * 1980-02-20 1983-03-22 Marc Kaufman Address translator
GB2099616A (en) * 1981-06-03 1982-12-08 Jpm Automatic Machines Ltd Improvements relating to microprocessor units
GB2114331B (en) * 1982-01-06 1985-10-09 Emi Ltd Program storage hardware
NL8201847A (nl) * 1982-05-06 1983-12-01 Philips Nv Inrichting voor het beschermen tegen onbevoegd uitlezen van in een geheugen te memoriseren programmawoorden.

Also Published As

Publication number Publication date
JPH0334103B2 (it) 1991-05-21
IT1209538B (it) 1989-08-30
SE8402285D0 (sv) 1984-04-26
DE3415209A1 (de) 1984-10-31
CA1213070A (en) 1986-10-21
FR2545244A1 (fr) 1984-11-02
HK38788A (en) 1988-06-03
JPS603024A (ja) 1985-01-09
IT8420695A0 (it) 1984-04-26
SE8402285L (sv) 1984-10-30
GB2140592B (en) 1987-10-21
SG10488G (en) 1988-07-01
GB8410712D0 (en) 1984-05-31
GB2140592A (en) 1984-11-28
IE841019L (en) 1984-10-28
SE462188B (sv) 1990-05-14
FR2545244B1 (fr) 1990-05-04

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