GB1120032A - Cryptographic device provided with at least one key element - Google Patents

Cryptographic device provided with at least one key element

Info

Publication number
GB1120032A
GB1120032A GB1983563A GB1983563A GB1120032A GB 1120032 A GB1120032 A GB 1120032A GB 1983563 A GB1983563 A GB 1983563A GB 1983563 A GB1983563 A GB 1983563A GB 1120032 A GB1120032 A GB 1120032A
Authority
GB
United Kingdom
Prior art keywords
register
section
registers
condition
reading 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.)
Expired
Application number
GB1983563A
Other languages
English (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.)
Philips USFA NV
Original Assignee
Philips USFA NV
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 Philips USFA NV filed Critical Philips USFA NV
Publication of GB1120032A publication Critical patent/GB1120032A/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
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • G09C1/06—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member
    • G09C1/10—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member the connections being electrical
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/12—Details relating to cryptographic hardware or logic circuitry

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Storage Device Security (AREA)
GB1983563A 1962-05-18 1963-05-17 Cryptographic device provided with at least one key element Expired GB1120032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL278586 1962-05-18

Publications (1)

Publication Number Publication Date
GB1120032A true GB1120032A (en) 1968-07-17

Family

ID=19753832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1983563A Expired GB1120032A (en) 1962-05-18 1963-05-17 Cryptographic device provided with at least one key element

Country Status (4)

Country Link
DK (1) DK234263A (enrdf_load_stackoverflow)
FR (1) FR1589355A (enrdf_load_stackoverflow)
GB (1) GB1120032A (enrdf_load_stackoverflow)
NO (1) NO128687B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911175A1 (de) * 1969-03-05 1970-09-24 Transvertex Ab Chiffriereinrichtung
EP0027137B1 (en) * 1979-04-16 1983-09-28 Ncr Corporation Apparatus for enciphering and/or deciphering data signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911175A1 (de) * 1969-03-05 1970-09-24 Transvertex Ab Chiffriereinrichtung
EP0027137B1 (en) * 1979-04-16 1983-09-28 Ncr Corporation Apparatus for enciphering and/or deciphering data signals

Also Published As

Publication number Publication date
DK234263A (da) 1982-04-28
FR1589355A (enrdf_load_stackoverflow) 1970-03-31
NO128687B (enrdf_load_stackoverflow) 1973-12-27

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