FR1186095A - Cryptographic device - Google Patents

Cryptographic device

Info

Publication number
FR1186095A
FR1186095A FR1186095DA FR1186095A FR 1186095 A FR1186095 A FR 1186095A FR 1186095D A FR1186095D A FR 1186095DA FR 1186095 A FR1186095 A FR 1186095A
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
French (fr)
Inventor
Vigo Waldemar Lindstein
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 FR1186095A publication Critical patent/FR1186095A/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
    • G09C1/14—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 involving removable or interchangeable coding numbers, e.g. master tapes, punched cards

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR1186095D 1956-11-17 1957-11-16 Cryptographic device Expired FR1186095A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1186095X 1956-11-17

Publications (1)

Publication Number Publication Date
FR1186095A true FR1186095A (en) 1959-08-13

Family

ID=20421611

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1186095D Expired FR1186095A (en) 1956-11-17 1957-11-16 Cryptographic device

Country Status (1)

Country Link
FR (1) FR1186095A (en)

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