FR1198894A - Device for producing a succession of pulses - Google Patents

Device for producing a succession of pulses

Info

Publication number
FR1198894A
FR1198894A FR1198894DA FR1198894A FR 1198894 A FR1198894 A FR 1198894A FR 1198894D A FR1198894D A FR 1198894DA FR 1198894 A FR1198894 A FR 1198894A
Authority
FR
France
Prior art keywords
succession
pulses
producing
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
Ernst Henze
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Application granted granted Critical
Publication of FR1198894A publication Critical patent/FR1198894A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Facsimile Transmission Control (AREA)
FR1198894D 1957-02-26 1958-02-17 Device for producing a succession of pulses Expired FR1198894A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET13281A DE1054491B (en) 1957-02-26 1957-02-26 Arrangement for the generation of n-digit, binary key numbers for the encryption of binary signals

Publications (1)

Publication Number Publication Date
FR1198894A true FR1198894A (en) 1959-12-10

Family

ID=7547284

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1198894D Expired FR1198894A (en) 1957-02-26 1958-02-17 Device for producing a succession of pulses

Country Status (5)

Country Link
US (1) US3038028A (en)
DE (1) DE1054491B (en)
FR (1) FR1198894A (en)
GB (1) GB874890A (en)
NL (2) NL225293A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1156847B (en) * 1959-12-22 1963-11-07 Prec Mecanique Labinal Coding device with a code converter for coded radio signals
NL267662A (en) * 1960-08-02
NL279100A (en) * 1961-05-30
NL283787A (en) * 1961-10-02
DE1196713B (en) * 1962-08-30 1965-07-15 Deutsche Bundespost Procedure for voice encryption
US5018685A (en) * 1964-05-27 1991-05-28 The United States Of America As Represented By The Secretary Of The Navy Data link and return link
US5004185A (en) * 1964-08-31 1991-04-02 The United States Of America As Represented By The Secretary Of The Navy Air-surface-missile data link system
US4434322A (en) 1965-08-19 1984-02-28 Racal Data Communications Inc. Coded data transmission system
US4283602A (en) * 1966-06-03 1981-08-11 International Telephone And Telegraph Corporation Cryptographically secure communication system
US3522374A (en) * 1966-06-17 1970-07-28 Int Standard Electric Corp Ciphering unit
US4171513A (en) * 1966-09-06 1979-10-16 Sanders Associates, Inc. Secure communications system
GB1190809A (en) * 1967-06-26 1970-05-06 Ericsson Telefon Ab L M Improvements in and relating to the Generation of a Pulse Code
US3715508A (en) * 1967-09-15 1973-02-06 Ibm Switching circuits employing orthogonal and quasi-orthogonal pseudo-random code sequences
FR1576416A (en) * 1968-04-10 1969-08-01
US3627928A (en) * 1969-02-04 1971-12-14 Litton Systems Inc Telegraph privacy system
DE1911175C3 (en) * 1969-03-05 1982-03-11 Aktiebolaget Transvertex, Varby Encryption facility
US3781473A (en) * 1971-04-15 1973-12-25 Datotek Random digital code generator
US3796830A (en) * 1971-11-02 1974-03-12 Ibm Recirculating block cipher cryptographic system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2406046A (en) * 1942-05-21 1946-08-20 Bell Telephone Labor Inc Telegraph signal enciphering key tape producing device
US2406032A (en) * 1942-11-23 1946-08-20 Bell Telephone Labor Inc Telegraph signal enciphering mechanism
US2403888A (en) * 1944-02-12 1946-07-09 American Telephone & Telegraph Enciphering and deciphering system
CH311424A (en) * 1950-04-22 1955-11-30 Gretener Edgar Ing Dr Method for the secrecy of speech in communication channels.
US2794851A (en) * 1952-02-08 1957-06-04 Zenith Radio Corp Code storage device

Also Published As

Publication number Publication date
NL109840C (en)
NL225293A (en)
DE1054491B (en) 1959-04-09
GB874890A (en) 1961-08-10
US3038028A (en) 1962-06-05

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