IL74782A0 - Computer software security system - Google Patents

Computer software security system

Info

Publication number
IL74782A0
IL74782A0 IL74782A IL7478285A IL74782A0 IL 74782 A0 IL74782 A0 IL 74782A0 IL 74782 A IL74782 A IL 74782A IL 7478285 A IL7478285 A IL 7478285A IL 74782 A0 IL74782 A0 IL 74782A0
Authority
IL
Israel
Prior art keywords
computer software
security system
software security
computer
software
Prior art date
Application number
IL74782A
Original Assignee
Frost Barry John
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
Priority claimed from GB848425017A external-priority patent/GB8425017D0/en
Application filed by Frost Barry John filed Critical Frost Barry John
Publication of IL74782A0 publication Critical patent/IL74782A0/en

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C5/00—Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Record Information Processing For Printing (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
IL74782A 1984-04-04 1985-04-02 Computer software security system IL74782A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8408603 1984-04-04
GB848425017A GB8425017D0 (en) 1984-10-03 1984-10-03 Security systems

Publications (1)

Publication Number Publication Date
IL74782A0 true IL74782A0 (en) 1985-07-31

Family

ID=26287554

Family Applications (1)

Application Number Title Priority Date Filing Date
IL74782A IL74782A0 (en) 1984-04-04 1985-04-02 Computer software security system

Country Status (6)

Country Link
EP (1) EP0176538A1 (en)
AU (1) AU4154285A (en)
CA (1) CA1232080A (en)
ES (1) ES8802093A1 (en)
IL (1) IL74782A0 (en)
WO (1) WO1985004746A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH555577A (en) * 1972-06-09 1974-10-31 Gretag Ag METHOD AND DEVICE FOR CONVERTING CLEAR GRAPHICAL INFORMATION INTO ENCRYPTED GRAPHICAL INFORMATION AND REVERSE
US3814904A (en) * 1972-10-20 1974-06-04 Rca Corp Cryptographically coded cards employing synthetic light modifying portion
US3937565A (en) * 1974-06-03 1976-02-10 Alasia Alfred Victor Process of coding indicia and product produced thereby
GB2101376B (en) * 1981-07-11 1986-05-21 John Gordon Lawrence Method and apparatus for use against counterfeiting

Also Published As

Publication number Publication date
ES8802093A1 (en) 1987-01-16
AU4154285A (en) 1985-11-01
ES541987A0 (en) 1987-01-16
CA1232080A (en) 1988-01-26
EP0176538A1 (en) 1986-04-09
WO1985004746A1 (en) 1985-10-24

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