FR2133395A5 - - Google Patents

Info

Publication number
FR2133395A5
FR2133395A5 FR7137279A FR7137279A FR2133395A5 FR 2133395 A5 FR2133395 A5 FR 2133395A5 FR 7137279 A FR7137279 A FR 7137279A FR 7137279 A FR7137279 A FR 7137279A FR 2133395 A5 FR2133395 A5 FR 2133395A5
Authority
FR
France
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
FR7137279A
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.)
Datotek Inc
Original Assignee
Datotek Inc
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 Datotek Inc filed Critical Datotek Inc
Application granted granted Critical
Publication of FR2133395A5 publication Critical patent/FR2133395A5/fr
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
    • H04L9/0668—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 producing a non-linear pseudorandom sequence
FR7137279A 1971-04-15 1971-10-18 Expired FR2133395A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13432071A 1971-04-15 1971-04-15

Publications (1)

Publication Number Publication Date
FR2133395A5 true FR2133395A5 (fr) 1972-11-24

Family

ID=22462819

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7137279A Expired FR2133395A5 (fr) 1971-04-15 1971-10-18

Country Status (9)

Country Link
US (1) US3781473A (fr)
CA (1) CA950360A (fr)
CH (1) CH572688A5 (fr)
DE (1) DE2154019C3 (fr)
FR (1) FR2133395A5 (fr)
GB (1) GB1361850A (fr)
IT (1) IT939641B (fr)
NL (1) NL7115278A (fr)
NO (1) NO142797C (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004089A (en) * 1975-02-28 1977-01-18 Ncr Corporation Programmable cryptic device for enciphering and deciphering data
US4166922A (en) * 1975-04-14 1979-09-04 Datotek, Inc. Multi-mode digital enciphering system with repeated priming sequences
US4133974A (en) * 1976-11-05 1979-01-09 Datotek, Inc. System for locally enciphering prime data
DE2706421C2 (de) * 1977-02-16 1979-03-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Einstellen von Schlüsseltextgeneratoren in Chiffriergeräten
US4202051A (en) * 1977-10-03 1980-05-06 Wisconsin Alumni Research Foundation Digital data enciphering and deciphering circuit and method
FR2477344B1 (fr) * 1980-03-03 1986-09-19 Bull Sa Procede et systeme de transmission d'informations confidentielles
US5428686A (en) * 1981-09-28 1995-06-27 The United States Of America As Represented By The Direrctor Of The National Security Agency Secure communication system having long-term keying variable
WO1984000457A1 (fr) * 1982-07-15 1984-02-02 Light Signatures Inc Systeme de communication privee
US4688257A (en) * 1984-07-17 1987-08-18 General Electric Company Secure wireless communication system utilizing locally synchronized noise signals
US4802217A (en) * 1985-06-07 1989-01-31 Siemens Corporate Research & Support, Inc. Method and apparatus for securing access to a computer facility
ATE85439T1 (de) 1985-06-07 1993-02-15 Siemens Ag Verfahren und anordnung zur sicherung des zugriffs zu einer rechenanlage.
US4860353A (en) * 1988-05-17 1989-08-22 General Instrument Corporation Dynamic feedback arrangement scrambling technique keystream generator
SE470242B (sv) * 1992-05-12 1993-12-13 Ericsson Telefon Ab L M Anordning för generering av slumptal
US5297207A (en) * 1993-05-24 1994-03-22 Degele Steven T Machine generation of cryptographic keys by non-linear processes similar to processes normally associated with encryption of data

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL225293A (fr) * 1957-02-26
DE1237366B (de) * 1961-08-18 1967-03-23 Gretag Ag Verfahren zur Ver- und Entschluesselung von impulsfoermig uebertragenen Nachrichten
US3522374A (en) * 1966-06-17 1970-07-28 Int Standard Electric Corp Ciphering unit

Also Published As

Publication number Publication date
DE2154019C3 (de) 1981-12-10
CH572688A5 (fr) 1976-02-13
DE2154019B2 (de) 1981-02-26
NO142797B (no) 1980-07-07
NO142797C (no) 1980-10-15
CA950360A (en) 1974-07-02
IT939641B (it) 1973-02-10
GB1361850A (en) 1974-07-30
NL7115278A (fr) 1972-10-17
US3781473A (en) 1973-12-25
DE2154019A1 (de) 1972-11-09

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Legal Events

Date Code Title Description
ST Notification of lapse