FR990164A - Appareil cryptographique - Google Patents

Appareil cryptographique

Info

Publication number
FR990164A
FR990164A FR990164DA FR990164A FR 990164 A FR990164 A FR 990164A FR 990164D A FR990164D A FR 990164DA FR 990164 A FR990164 A FR 990164A
Authority
FR
France
Prior art keywords
cryptographic device
cryptographic
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
Other languages
English (en)
Inventor
Andre Sauzade
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 filed Critical
Application granted granted Critical
Publication of FR990164A publication Critical patent/FR990164A/fr
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
    • G09C1/04—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 with sign carriers or indicators moved relative to one another to positions determined by a permutation code, or key, so as to indicate the appropriate corresponding clear or ciphered text

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR990164D 1944-03-10 1944-03-10 Appareil cryptographique Expired FR990164A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR990164T 1944-03-10

Publications (1)

Publication Number Publication Date
FR990164A true FR990164A (fr) 1951-09-18

Family

ID=9541890

Family Applications (1)

Application Number Title Priority Date Filing Date
FR990164D Expired FR990164A (fr) 1944-03-10 1944-03-10 Appareil cryptographique

Country Status (1)

Country Link
FR (1) FR990164A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE948365C (de) * 1952-11-17 1956-08-30 Boris Caesar Wilhelm Hagelin D Rad mit mindestens einer ringfoermigen Reihe von Zeichen oder Typen
US2924888A (en) * 1954-11-05 1960-02-16 Joseph A Raffalli Coding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE948365C (de) * 1952-11-17 1956-08-30 Boris Caesar Wilhelm Hagelin D Rad mit mindestens einer ringfoermigen Reihe von Zeichen oder Typen
US2924888A (en) * 1954-11-05 1960-02-16 Joseph A Raffalli Coding device

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