FR966872A - Device for advancing the encryption wheels in a signal transmitting device - Google Patents

Device for advancing the encryption wheels in a signal transmitting device

Info

Publication number
FR966872A
FR966872A FR966872DA FR966872A FR 966872 A FR966872 A FR 966872A FR 966872D A FR966872D A FR 966872DA FR 966872 A FR966872 A FR 966872A
Authority
FR
France
Prior art keywords
encryption
advancing
wheels
signal transmitting
transmitting 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
Other languages
French (fr)
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.)
Telecom Italia SpA
Olivetti SpA
Original Assignee
Olivetti SpA
Ing C Olivetti and C SpA
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 Olivetti SpA, Ing C Olivetti and C SpA filed Critical Olivetti SpA
Application granted granted Critical
Publication of FR966872A publication Critical patent/FR966872A/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
    • G09C1/12—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 comprising contact-bearing permutation discs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission Devices (AREA)
  • Toys (AREA)
FR966872D 1947-05-30 1948-05-26 Device for advancing the encryption wheels in a signal transmitting device Expired FR966872A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT667665X 1947-05-30

Publications (1)

Publication Number Publication Date
FR966872A true FR966872A (en) 1950-10-20

Family

ID=11298729

Family Applications (1)

Application Number Title Priority Date Filing Date
FR966872D Expired FR966872A (en) 1947-05-30 1948-05-26 Device for advancing the encryption wheels in a signal transmitting device

Country Status (4)

Country Link
US (1) US2512734A (en)
DE (1) DE948647C (en)
FR (1) FR966872A (en)
GB (1) GB667665A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765364A (en) * 1950-10-05 1956-10-02 Hagelin Boris Caesar Wilhelm Keying mechanism

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1683072A (en) * 1928-09-04 Electric code machine
DE579555C (en) * 1928-11-17 1933-07-03 Chiffriermaschinen Akt Ges Encryption device with encryption rollers
BE390250A (en) * 1932-08-05 1932-09-30
US2373890A (en) * 1938-10-03 1945-04-17 Internat Code Machine Company Cipher machine
US2394765A (en) * 1939-07-12 1946-02-12 Hagelin Boris Caesar Wilhelm Ciphering and deciphering mechanism

Also Published As

Publication number Publication date
GB667665A (en) 1952-03-05
US2512734A (en) 1950-06-27
DE948647C (en) 1956-09-06

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