FR2376461A1 - Dispositif de protection hierarchique dans un systeme de traitement de donnees - Google Patents

Dispositif de protection hierarchique dans un systeme de traitement de donnees

Info

Publication number
FR2376461A1
FR2376461A1 FR7735958A FR7735958A FR2376461A1 FR 2376461 A1 FR2376461 A1 FR 2376461A1 FR 7735958 A FR7735958 A FR 7735958A FR 7735958 A FR7735958 A FR 7735958A FR 2376461 A1 FR2376461 A1 FR 2376461A1
Authority
FR
France
Prior art keywords
protection
field
data processing
processing system
protection device
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.)
Granted
Application number
FR7735958A
Other languages
English (en)
Other versions
FR2376461B1 (fr
Inventor
Peter W Markstein
Alan L Tritter
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2376461A1 publication Critical patent/FR2376461A1/fr
Application granted granted Critical
Publication of FR2376461B1 publication Critical patent/FR2376461B1/fr
Granted 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
    • G06F12/1458—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

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)
  • Storage Device Security (AREA)

Abstract

Dispositif permettant d'établir un niveau de protection pour chacune des séquences d'instructions exécutées par le système. Des moyens assignent un champ de protection à chacune des zones de mémoire pouvant être adressées par le système. D'autres moyens assignent un champ de protection à chacune des séquences d'instructions, chaque champ étant fonction du niveau de protection de la séquence correspondante. Des moyens de comparaison comparent le champ de protection de chaque zone adressée et le champ de protection de la séquence ayant adressé cette zone Le dispositif permet au système d'exécuter des séquences d'instructions présentant une hiérarchie de niveaux de protection.
FR7735958A 1976-12-30 1977-11-21 Dispositif de protection hierarchique dans un systeme de traitement de donnees Granted FR2376461A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/755,899 US4104721A (en) 1976-12-30 1976-12-30 Hierarchical security mechanism for dynamically assigning security levels to object programs

Publications (2)

Publication Number Publication Date
FR2376461A1 true FR2376461A1 (fr) 1978-07-28
FR2376461B1 FR2376461B1 (fr) 1980-08-22

Family

ID=25041151

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7735958A Granted FR2376461A1 (fr) 1976-12-30 1977-11-21 Dispositif de protection hierarchique dans un systeme de traitement de donnees

Country Status (5)

Country Link
US (1) US4104721A (fr)
JP (1) JPS5384524A (fr)
DE (1) DE2758152A1 (fr)
FR (1) FR2376461A1 (fr)
GB (1) GB1539356A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2641880A1 (fr) * 1989-01-19 1990-07-20 Strahlen Umweltforsch Gmbh Procede pour la surveillance de domaines d'adresse dans des appareils de traitement de donnees en temps reel

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Cited By (3)

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FR2641880A1 (fr) * 1989-01-19 1990-07-20 Strahlen Umweltforsch Gmbh Procede pour la surveillance de domaines d'adresse dans des appareils de traitement de donnees en temps reel
BE1003791A5 (fr) * 1989-01-19 1992-06-16 Strahlen Umweltforsch Gmbh Procede pour la surveillance de domaines d'adresse dans des appareils de traitement de donnees en temps reel.
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Also Published As

Publication number Publication date
FR2376461B1 (fr) 1980-08-22
GB1539356A (en) 1979-01-31
JPS6112584B2 (fr) 1986-04-09
DE2758152A1 (de) 1978-07-13
US4104721A (en) 1978-08-01
JPS5384524A (en) 1978-07-26

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