FR2486680B1 - Procede et dispositif de permutation des elements d'un ensemble - Google Patents

Procede et dispositif de permutation des elements d'un ensemble

Info

Publication number
FR2486680B1
FR2486680B1 FR8015506A FR8015506A FR2486680B1 FR 2486680 B1 FR2486680 B1 FR 2486680B1 FR 8015506 A FR8015506 A FR 8015506A FR 8015506 A FR8015506 A FR 8015506A FR 2486680 B1 FR2486680 B1 FR 2486680B1
Authority
FR
France
Prior art keywords
assembly
switching elements
switching
elements
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
FR8015506A
Other languages
English (en)
Other versions
FR2486680A1 (fr
Inventor
Pierre Louis Vincent Breant
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Priority to FR8015506A priority Critical patent/FR2486680B1/fr
Publication of FR2486680A1 publication Critical patent/FR2486680A1/fr
Application granted granted Critical
Publication of FR2486680B1 publication Critical patent/FR2486680B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards
    • 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
    • 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
    • H04L9/34—Bits, or blocks of bits, of the telegraphic message being interchanged in time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80—Wireless

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
FR8015506A 1980-07-11 1980-07-11 Procede et dispositif de permutation des elements d'un ensemble Expired FR2486680B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8015506A FR2486680B1 (fr) 1980-07-11 1980-07-11 Procede et dispositif de permutation des elements d'un ensemble

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8015506A FR2486680B1 (fr) 1980-07-11 1980-07-11 Procede et dispositif de permutation des elements d'un ensemble

Publications (2)

Publication Number Publication Date
FR2486680A1 FR2486680A1 (fr) 1982-01-15
FR2486680B1 true FR2486680B1 (fr) 1986-07-25

Family

ID=9244127

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8015506A Expired FR2486680B1 (fr) 1980-07-11 1980-07-11 Procede et dispositif de permutation des elements d'un ensemble

Country Status (1)

Country Link
FR (1) FR2486680B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590383B1 (fr) * 1985-11-20 1988-02-05 Dassault Electronique Dispositif electronique de communication cryptographique, et procede correspondant
GB8619453D0 (en) * 1986-08-08 1986-09-17 British Broadcasting Corp Data encipherment
FR2639781B1 (fr) * 1988-11-25 1991-01-04 Alcatel Thomson Faisceaux Procede d'entrelacement pour dispositif de transmission numerique
EP1327937B1 (fr) * 2000-09-20 2006-06-21 Yutaka Yasukura Methode de cryptage et de decryptage d'information electronique utilisant des permutations aleatoires

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379947A1 (fr) * 1977-02-03 1978-09-01 Secre Procede et dispositif de brouillage permettant la discretion dans la transmission d'informations
US4221931A (en) * 1977-10-17 1980-09-09 Harris Corporation Time division multiplied speech scrambler

Also Published As

Publication number Publication date
FR2486680A1 (fr) 1982-01-15

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Legal Events

Date Code Title Description
ST Notification of lapse