ES2026091A6 - Sistema de ordenador. - Google Patents

Sistema de ordenador.

Info

Publication number
ES2026091A6
ES2026091A6 ES9100662A ES9100662A ES2026091A6 ES 2026091 A6 ES2026091 A6 ES 2026091A6 ES 9100662 A ES9100662 A ES 9100662A ES 9100662 A ES9100662 A ES 9100662A ES 2026091 A6 ES2026091 A6 ES 2026091A6
Authority
ES
Spain
Prior art keywords
computer system
enhanced features
cpu
program instructions
controlling access
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
ES9100662A
Other languages
English (en)
Inventor
Stephen David Gane
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.)
Amstrad PLC
Original Assignee
Amstrad PLC
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 Amstrad PLC filed Critical Amstrad PLC
Publication of ES2026091A6 publication Critical patent/ES2026091A6/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
    • G06F21/57—Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Stored Programmes (AREA)

Abstract

SISTEMA DE ORDENADOR PARA SU USO CON UNA FUENTE DE PROGRAMAS EXTRAIBLE E INSERTABLE, TAL COMO UN CARTUCHO DE ROM (9) O UN DISCO FLEXIBLE (12), QUE INCLUYE UNA UCP (1) PARA EJECUTAR LAS INSTRUCCIONES DEL PROGRAMA ALMACENADO, BIEN DIRECTAMENTE DESDE EL CARTUCHO DE ROM O BIEN DESPUES DE SER LEIDAS EN UNA MEMORIA RAM (3). UNA PASTILLA (2) DE CIRCUITO INTEGRADO DE VIDEO/SONIDO PROPORCIONA UNAS UNIDADES BASICAS ABIERTAS A TODOS LOS PROGRAMAS Y UNAS UNIDADES MEJORADAS ABIERTAS UNICAMENTE A PROGRAMAS SELECCIONADOS. SE ACTIVA EL ACCESO A LAS UNIDADES MEJORADAS AL COMPARAR UNA SECUENCIA DE BYTES EMITIDOS POR LA UCP, EN RESPUESTA A LAS INSTRUCCIONES DEL PROGRAMA, CON UNA SECUENCIA DE REFERENCIA PROPORCIONADA POR UN GENERADOR DE SENCUENCIA PSEUDO-ALEATORIA, Y AL ACTIVAR LAS UNIDADES MEJORADAS EN DEPENDENCIA DEL RESULTADO DE LA COMPARACION.
ES9100662A 1990-03-16 1991-03-14 Sistema de ordenador. Expired - Lifetime ES2026091A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909005916A GB9005916D0 (en) 1990-03-16 1990-03-16 Computer system

Publications (1)

Publication Number Publication Date
ES2026091A6 true ES2026091A6 (es) 1992-04-01

Family

ID=10672710

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9100662A Expired - Lifetime ES2026091A6 (es) 1990-03-16 1991-03-14 Sistema de ordenador.

Country Status (4)

Country Link
ES (1) ES2026091A6 (es)
FR (1) FR2659763A1 (es)
GB (2) GB9005916D0 (es)
IT (1) IT1245221B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2073495C (en) * 1992-07-08 1999-01-12 Michael Wright Option selection and control
TW230247B (es) * 1992-10-01 1994-09-11 Hardson Kk
US6789199B1 (en) * 2000-02-08 2004-09-07 International Business Machines Corporation Tamper resistance with pseudo-random binary sequence program interlocks

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57111792A (en) * 1980-12-29 1982-07-12 Fanuc Ltd Program copying preventing system
CA1183276A (en) * 1981-11-25 1985-02-26 Charles B. Heffron Method for identifying a system-allied physically separable program memory and a data processing system utilizing said method
US4462076A (en) * 1982-06-04 1984-07-24 Smith Engineering Video game cartridge recognition and security system
US4777590A (en) * 1984-10-29 1988-10-11 Pictorial, Inc. Portable computer
US4688169A (en) * 1985-05-30 1987-08-18 Joshi Bhagirath S Computer software security system
CA1270339A (en) * 1985-06-24 1990-06-12 Katsuya Nakagawa System for determining a truth of software in an information processing apparatus
JPH074449B2 (ja) * 1985-10-04 1995-01-25 任天堂株式会社 ゲ−ム機用カ−トリツジとそれを用いるゲ−ム機
JPS62192836A (ja) * 1986-02-20 1987-08-24 Nec Corp 暗号化記憶装置

Also Published As

Publication number Publication date
GB9005916D0 (en) 1990-05-09
GB2243701A (en) 1991-11-06
GB9105482D0 (en) 1991-05-01
IT1245221B (it) 1994-09-13
ITMI910669A1 (it) 1992-09-13
FR2659763A1 (fr) 1991-09-20
ITMI910669A0 (it) 1991-03-13

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19981001