GB1536868A - Method for setting up a quasi-random generator - Google Patents

Method for setting up a quasi-random generator

Info

Publication number
GB1536868A
GB1536868A GB49508/75A GB4950875A GB1536868A GB 1536868 A GB1536868 A GB 1536868A GB 49508/75 A GB49508/75 A GB 49508/75A GB 4950875 A GB4950875 A GB 4950875A GB 1536868 A GB1536868 A GB 1536868A
Authority
GB
United Kingdom
Prior art keywords
sequence
word
dec
quasi
setting
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
GB49508/75A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1536868A publication Critical patent/GB1536868A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Radio Relay Systems (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

1536868 Random pulse generators LICENTIA PATENT VERWALTUNGS GmbH 2 Dec 1975 [3 Dec 1974] 49508/75 Heading G4D In producing pseudo random pulse sequences for ciphering or testing transmission systems a basic binary word defines the starting point of a sequence while a further word, which may for instance be transmitted from a message receiving station back to the transmitting station prior to transmission, is combined with the basic word and is employed to determine the interconnections in the sequence generator and therefore the form of the sequence.
GB49508/75A 1974-12-03 1975-12-02 Method for setting up a quasi-random generator Expired GB1536868A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742457027 DE2457027B2 (en) 1974-12-03 1974-12-03 PROCEDURE FOR PROGRAMMING ARRANGEMENTS FOR GENERATING RANDOM BINARY STRINGS

Publications (1)

Publication Number Publication Date
GB1536868A true GB1536868A (en) 1978-12-20

Family

ID=5932332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49508/75A Expired GB1536868A (en) 1974-12-03 1975-12-02 Method for setting up a quasi-random generator

Country Status (6)

Country Link
AT (1) AT345348B (en)
DE (1) DE2457027B2 (en)
FR (1) FR2293755A1 (en)
GB (1) GB1536868A (en)
NL (1) NL180797C (en)
NO (1) NO754049L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084967A2 (en) * 1982-01-27 1983-08-03 The Marconi Company Limited Radio communication system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2706421C2 (en) * 1977-02-16 1979-03-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Procedure for setting ciphertext generators in encryption devices
US4785410A (en) * 1985-06-05 1988-11-15 Clarion Co., Ltd. Maximum length shift register sequences generator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237366B (en) * 1961-08-18 1967-03-23 Gretag Ag Procedure for the encryption and decryption of impulsively transmitted messages
US3609327A (en) * 1969-10-22 1971-09-28 Nasa Feedback shift register with states decomposed into cycles of equal length
US3673501A (en) * 1971-08-18 1972-06-27 Us Navy Control logic for linear sequence generators and ring counters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084967A2 (en) * 1982-01-27 1983-08-03 The Marconi Company Limited Radio communication system
EP0084967A3 (en) * 1982-01-27 1983-08-10 The Marconi Company Limited Radio communication system

Also Published As

Publication number Publication date
FR2293755A1 (en) 1976-07-02
FR2293755B1 (en) 1982-04-09
ATA919175A (en) 1978-01-15
NO754049L (en) 1976-06-04
AT345348B (en) 1978-09-11
NL7513986A (en) 1976-06-08
DE2457027B2 (en) 1977-02-03
NL180797C (en) 1987-04-16
NL180797B (en) 1986-11-17
DE2457027A1 (en) 1976-06-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee