FR1084433A - Appareil cryptographique - Google Patents

Appareil cryptographique

Info

Publication number
FR1084433A
FR1084433A FR1084433DA FR1084433A FR 1084433 A FR1084433 A FR 1084433A FR 1084433D A FR1084433D A FR 1084433DA FR 1084433 A FR1084433 A FR 1084433A
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
Edgar Gretener
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 FR1084433A publication Critical patent/FR1084433A/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
    • G09C1/06—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
    • H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission Devices (AREA)
FR1084433D 1952-08-19 1953-07-28 Appareil cryptographique Expired FR1084433A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2785224X 1952-08-19

Publications (1)

Publication Number Publication Date
FR1084433A true FR1084433A (fr) 1955-01-19

Family

ID=4571775

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1084433D Expired FR1084433A (fr) 1952-08-19 1953-07-28 Appareil cryptographique

Country Status (5)

Country Link
US (1) US2785224A (fr)
BE (1) BE522193A (fr)
CH (1) CH305146A (fr)
FR (1) FR1084433A (fr)
NL (2) NL180295B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074630B (de) * 1955-01-26 1960-02-04 Fa Dr Ing Rudolf Hell, Kiel-Dietnchsdorf Verfahren und Vorrichtung zur Herstellung von verlängerten Schlusselstreifen sehr langer Periode fur Mischgerate zum Ver und Entschlüsseln
US2964743A (en) * 1957-11-29 1960-12-13 Ncr Co Programming devices
BE564821A (fr) * 1958-02-14 1958-08-14 Acec Dispositif chiffrant et déchiffrant pour téléimprimeur
DE977715C (de) * 1962-05-18 1968-08-29 Philips Usfa Nv Verschluesselungseinrichtung
US3319000A (en) * 1965-09-16 1967-05-09 Alfred M Roberts Ciphering device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE381441A (fr) * 1930-07-18
US2402182A (en) * 1943-01-07 1946-06-18 Rosen Leo Rotor
US2458406A (en) * 1945-09-28 1949-01-04 Ibm Ciphering and checking device
US2522461A (en) * 1946-10-10 1950-09-12 Teletype Corp Mechanical chain linkage system for mechanical ciphering units
DE885563C (de) * 1951-05-08 1953-08-06 Rudolf Dr-Ing Hell Verschluesselungsmaschine

Also Published As

Publication number Publication date
CH305146A (de) 1955-02-15
US2785224A (en) 1957-03-12
NL180295B (nl)
BE522193A (fr)
NL98390C (fr)

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