NL142301B - Schakeling voor het opwekken van codeerimpulsreeksen. - Google Patents

Schakeling voor het opwekken van codeerimpulsreeksen.

Info

Publication number
NL142301B
NL142301B NL63287518A NL287518A NL142301B NL 142301 B NL142301 B NL 142301B NL 63287518 A NL63287518 A NL 63287518A NL 287518 A NL287518 A NL 287518A NL 142301 B NL142301 B NL 142301B
Authority
NL
Netherlands
Prior art keywords
circuit
generating code
impulse series
code impulse
series
Prior art date
Application number
NL63287518A
Other languages
English (en)
Dutch (nl)
Original Assignee
Gretag 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 Gretag Ag filed Critical Gretag Ag
Publication of NL142301B publication Critical patent/NL142301B/xx

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/58—Random or pseudo-random number generators
    • G06F7/582—Pseudo-random number generators
    • G06F7/584—Pseudo-random number generators using finite field arithmetic, e.g. using a linear feedback shift register
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/58—Indexing scheme relating to groups G06F7/58 - G06F7/588
    • G06F2207/581—Generating an LFSR sequence, e.g. an m-sequence; sequence may be generated without LFSR, e.g. using Galois Field arithmetic
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/58—Indexing scheme relating to groups G06F7/58 - G06F7/588
    • G06F2207/583—Serial finite field implementation, i.e. serial implementation of finite field arithmetic, generating one new bit or trit per step, e.g. using an LFSR or several independent LFSRs; also includes PRNGs with parallel operation between LFSR and outputs

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computational Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Manipulation Of Pulses (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
NL63287518A 1962-01-10 1963-01-08 Schakeling voor het opwekken van codeerimpulsreeksen. NL142301B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH24662A CH408109A (de) 1962-01-10 1962-01-10 Einrichtung zur Erzeugung von Schlüsselimpulsfolgen

Publications (1)

Publication Number Publication Date
NL142301B true NL142301B (nl) 1974-05-15

Family

ID=4182624

Family Applications (2)

Application Number Title Priority Date Filing Date
NL287518D NL287518A (de) 1962-01-10
NL63287518A NL142301B (nl) 1962-01-10 1963-01-08 Schakeling voor het opwekken van codeerimpulsreeksen.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL287518D NL287518A (de) 1962-01-10

Country Status (6)

Country Link
US (1) US3678198A (de)
BE (1) BE626963A (de)
CH (1) CH408109A (de)
DE (1) DE1257843B (de)
GB (1) GB973537A (de)
NL (2) NL142301B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434322A (en) 1965-08-19 1984-02-28 Racal Data Communications Inc. Coded data transmission system
US3921151A (en) * 1971-06-21 1975-11-18 Patelhold Patentwerwertungs & Apparatus for enciphering transmitted data by interchanging signal elements of the transmitted data without overlapping or omitting any elements within the transmitted signal train
US3764742A (en) * 1971-12-23 1973-10-09 Ibm Cryptographic identification system
US3878332A (en) * 1972-10-20 1975-04-15 Barrie O Morgan Digital crytographic system and method
US4305060A (en) * 1979-02-26 1981-12-08 Multi-Elmac Company Decoder circuitry for selectively activating loads
US4447672A (en) * 1980-10-06 1984-05-08 Nippon Electric Co., Ltd. Device for encrypting each input data bit by at least one keying bit decided by a code pattern and a bit pattern of a predetermined number of preceding encrypted bits
JPH05291891A (ja) * 1992-02-14 1993-11-05 Ricoh Co Ltd 一次乱数パルス列発生回路装置
GB0028369D0 (en) * 2000-11-21 2001-01-03 Marconi Software Solutions Ltd A communication system
US10438022B2 (en) * 2016-12-16 2019-10-08 Arm Limited Logic encryption using on-chip memory cells

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074630B (de) * 1955-01-26 1960-02-04 Fa Dr Ing Rudolf Hell, Kiel-Dietnchsdorf Verfahren und Vorrichtung zur Herstellung von verlängerten Schlusselstreifen sehr langer Periode fur Mischgerate zum Ver und Entschlüsseln
US2995624A (en) * 1959-03-11 1961-08-08 Zenith Radio Corp Secrecy communication system

Also Published As

Publication number Publication date
US3678198A (en) 1972-07-18
CH408109A (de) 1966-02-28
DE1257843B (de) 1968-01-04
NL287518A (de)
BE626963A (de)
GB973537A (en) 1964-10-28

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: GRETAG