GB8707850D0 - Personal computer - Google Patents

Personal computer

Info

Publication number
GB8707850D0
GB8707850D0 GB8707850A GB8707850A GB8707850D0 GB 8707850 D0 GB8707850 D0 GB 8707850D0 GB 8707850 A GB8707850 A GB 8707850A GB 8707850 A GB8707850 A GB 8707850A GB 8707850 D0 GB8707850 D0 GB 8707850D0
Authority
GB
United Kingdom
Prior art keywords
personal computer
personal
computer
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Withdrawn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
GB8707850A
Other versions
GB2203271A (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.)
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
Priority to GB8707850A priority Critical patent/GB2203271A/en
Publication of GB8707850D0 publication Critical patent/GB8707850D0/en
Publication of GB2203271A publication Critical patent/GB2203271A/en
Withdrawn legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Technology Law (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
GB8707850A 1987-04-02 1987-04-02 Personal computer with encrypted programs Withdrawn GB2203271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8707850A GB2203271A (en) 1987-04-02 1987-04-02 Personal computer with encrypted programs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8707850A GB2203271A (en) 1987-04-02 1987-04-02 Personal computer with encrypted programs

Publications (2)

Publication Number Publication Date
GB8707850D0 true GB8707850D0 (en) 1987-05-07
GB2203271A GB2203271A (en) 1988-10-12

Family

ID=10615088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8707850A Withdrawn GB2203271A (en) 1987-04-02 1987-04-02 Personal computer with encrypted programs

Country Status (1)

Country Link
GB (1) GB2203271A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2728980B1 (en) * 1994-12-30 1997-01-31 Thomson Csf SECURITY DEVICE FOR INFORMATION SYSTEMS ORGANIZED AROUND MICROPROCESSORS
JP3848573B2 (en) * 2000-01-18 2006-11-22 インフィネオン テクノロジーズ アクチエンゲゼルシャフト Microprocessor system
GB2385951A (en) 2001-09-21 2003-09-03 Sun Microsystems Inc Data encryption and decryption

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4203166A (en) * 1977-12-05 1980-05-13 International Business Machines Corporation Cryptographic file security for multiple domain networks
GB2149944A (en) * 1983-11-14 1985-06-19 Softnet Inc Software distribution
US4633388A (en) * 1984-01-18 1986-12-30 Siemens Corporate Research & Support, Inc. On-chip microprocessor instruction decoder having hardware for selectively bypassing on-chip circuitry used to decipher encrypted instruction codes
DE3565918D1 (en) * 1984-08-10 1988-12-01 Gretag Ag Enciphering/deciphering method
GB2163577B (en) * 1984-08-23 1988-01-13 Nat Res Dev Software protection device

Also Published As

Publication number Publication date
GB2203271A (en) 1988-10-12

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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)