GB1025823A - Improvements in key generators for cryptographic systems - Google Patents

Improvements in key generators for cryptographic systems

Info

Publication number
GB1025823A
GB1025823A GB392463A GB392463A GB1025823A GB 1025823 A GB1025823 A GB 1025823A GB 392463 A GB392463 A GB 392463A GB 392463 A GB392463 A GB 392463A GB 1025823 A GB1025823 A GB 1025823A
Authority
GB
United Kingdom
Prior art keywords
gates
digits
clock
counters
decoders
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
GB392463A
Other languages
English (en)
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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
Priority claimed from FR886467A external-priority patent/FR81038E/fr
Application filed by CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB1025823A publication Critical patent/GB1025823A/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)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Storage Device Security (AREA)
GB392463A 1962-01-31 1963-01-30 Improvements in key generators for cryptographic systems Expired GB1025823A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR886467A FR81038E (fr) 1961-06-19 1962-01-31 Générateur électronique de clé à sorties équiprobables

Publications (1)

Publication Number Publication Date
GB1025823A true GB1025823A (en) 1966-04-14

Family

ID=8771614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB392463A Expired GB1025823A (en) 1962-01-31 1963-01-30 Improvements in key generators for cryptographic systems

Country Status (3)

Country Link
DE (1) DE1188123B (enrdf_load_stackoverflow)
GB (1) GB1025823A (enrdf_load_stackoverflow)
NL (1) NL288333A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1562010C1 (de) * 1968-02-22 1994-07-28 Siemens Ag Verfahren und Einrichtung zum Bilden von Schlüsselbitfolgen
IT1060716B (it) * 1969-09-17 1982-08-20 Sits Soc It Telecom Siemens Macchina cifrante a chiave continua
US4074066A (en) * 1976-04-26 1978-02-14 International Business Machines Corporation Message verification and transmission error detection by block chaining

Also Published As

Publication number Publication date
NL288333A (enrdf_load_stackoverflow)
DE1188123B (de) 1965-03-04

Similar Documents

Publication Publication Date Title
GB1167272A (en) Improvement to Key Generators for Cryptographic Devices
GB1178027A (en) Ciphering Unit for Cryptographic Telegraph Equipment
GB1190809A (en) Improvements in and relating to the Generation of a Pulse Code
SE321709B (enrdf_load_stackoverflow)
GB1025823A (en) Improvements in key generators for cryptographic systems
GB954313A (en) Improvements in electrical generators of quasi-random symbols
GB1062721A (en) Ciphering and deciphering apparatus
GB1082777A (en) Keyboard mechanism for generating code combinations
GB706381A (en) Improvements in or relating to electric pulse code modulation systems of communication
US3364308A (en) Key generators for cryptographic systems
US3351931A (en) Voltage analog to time analog converter
GB1222585A (en) Improved code generator
GB1167244A (en) Data Signalling System
GB1090239A (en) Improvements in or relating to digital-to-analog converters
GB1385850A (en) Receiver for a selective paging system
GB1227389A (enrdf_load_stackoverflow)
GB1137022A (en) Ciphering device for a two-channel switching system
GB1500126A (en) Cypher systems
GB945607A (en) Improvements in receiving apparatus with electronic selector and controller with storage system
GB1322915A (en) Circuit arrangement of a generator of a binomial random sequence
GB1227233A (enrdf_load_stackoverflow)
GB1164490A (en) Ciphering and Deciphering Apparatus
GB1057207A (en) Apparatus for generating a telegraph signal
GB1406473A (en) Telegraphic apparatus
BLEIVAS et al. Solution of problems in electron optics and uhf electronics by method of mathematical modeling(Solution of problems in electron optics in uhf electronics by method of mathematical modeling, such as those described by poisson equation)