ES8802093A1 - Security system. - Google Patents

Security system.

Info

Publication number
ES8802093A1
ES8802093A1 ES541987A ES541987A ES8802093A1 ES 8802093 A1 ES8802093 A1 ES 8802093A1 ES 541987 A ES541987 A ES 541987A ES 541987 A ES541987 A ES 541987A ES 8802093 A1 ES8802093 A1 ES 8802093A1
Authority
ES
Spain
Prior art keywords
encoded
data
copied
inhibit
specific application
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
Application number
ES541987A
Other languages
Spanish (es)
Other versions
ES541987A0 (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.)
FROST BARRY JOH
Original Assignee
FROST BARRY JOH
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 JOH filed Critical FROST BARRY JOH
Publication of ES8802093A1 publication Critical patent/ES8802093A1/en
Publication of ES541987A0 publication Critical patent/ES541987A0/en
Expired legal-status Critical Current

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)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

A security system and, in one particular embodiment, security systems for protection of computer software against unauthorised access. One specific application for this invention is to inhibit the running of computer programs whilst still permitting the software to be copied. A further specific application of the invention is in the production of encoded documents, labels and tags which cannot be read but again, can be copied. In one aspect the invention comprises a system to inhibit unauthorised access to data comprising a) output means (28) to transpose two or more components of an element of said data in accordance with a preselected algorithm, and thus produce an encoded element, and, b) decoding means (29-31) to rearrange said encoded element, thereby recreating the element of said data, characterised in that, the output means (28) comprise at least one microprocessor programmed with said algorithm and means for displaying the encoded element in visible form, and the decoding means comprise at least one optical element (29) capable of rearranging said encoded element.
ES541987A 1984-04-04 1985-04-03 Security system. Expired ES8802093A1 (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 (2)

Publication Number Publication Date
ES8802093A1 true ES8802093A1 (en) 1987-01-16
ES541987A0 ES541987A0 (en) 1987-01-16

Family

ID=26287554

Family Applications (1)

Application Number Title Priority Date Filing Date
ES541987A Expired ES8802093A1 (en) 1984-04-04 1985-04-03 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
IL74782A0 (en) 1985-07-31
ES541987A0 (en) 1987-01-16
EP0176538A1 (en) 1986-04-09
CA1232080A (en) 1988-01-26
WO1985004746A1 (en) 1985-10-24
AU4154285A (en) 1985-11-01

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