GB1167272A - Improvement to Key Generators for Cryptographic Devices - Google Patents

Improvement to Key Generators for Cryptographic Devices

Info

Publication number
GB1167272A
GB1167272A GB4270967A GB4270967A GB1167272A GB 1167272 A GB1167272 A GB 1167272A GB 4270967 A GB4270967 A GB 4270967A GB 4270967 A GB4270967 A GB 4270967A GB 1167272 A GB1167272 A GB 1167272A
Authority
GB
United Kingdom
Prior art keywords
outputs
register
random number
improvement
quasirandom
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
GB4270967A
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
Thomson CSF 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
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB1167272A publication Critical patent/GB1167272A/en
Expired legal-status Critical Current

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
    • 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)
  • 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)
  • Complex Calculations (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

1,167,272. Random number generators. THOMSON-CSF. 19 Sept., 1967 [26 Sept., 1966], No. 42709/67. Heading G4D. A circuit for producing a second quasirandom number by operating on a first quasirandom number comprises an arrangement 1 of counters fed by a clock pulse source 2, the arrangement 1 providing N outputs to a circuit 3 which provides the first quasi-random number on n outputs 7. Each of the n outputs feeds a respective modulo-2 feedback shift register 4, the resulting n outputs 5 giving the second quasi-random number, which is used in a ciphering apparatus. Each register 4 comprises a modulo-2 adder fed by the output 7 and generating the output 5 which also passes to the first bi-stable stage of the register. The second input of the adder is derived from logical operations on the outputs of various stages in the register. Each register may have a different feed-back function.
GB4270967A 1966-09-26 1967-09-19 Improvement to Key Generators for Cryptographic Devices Expired GB1167272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR77627A FR1501059A (en) 1966-09-26 1966-09-26 New key generator

Publications (1)

Publication Number Publication Date
GB1167272A true GB1167272A (en) 1969-10-15

Family

ID=8617837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4270967A Expired GB1167272A (en) 1966-09-26 1967-09-19 Improvement to Key Generators for Cryptographic Devices

Country Status (7)

Country Link
BE (1) BE704309A (en)
CH (1) CH472751A (en)
DE (1) DE1537062C3 (en)
FR (1) FR1501059A (en)
GB (1) GB1167272A (en)
NL (1) NL6713111A (en)
SE (1) SE338063B (en)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2000901A3 (en) * 2007-06-07 2009-08-26 Harris Corporation Mixed radix number generator with chosen statistical artifacts
US7921145B2 (en) 2007-05-22 2011-04-05 Harris Corporation Extending a repetition period of a random sequence
US7937427B2 (en) 2007-04-19 2011-05-03 Harris Corporation Digital generation of a chaotic numerical sequence
US7970809B2 (en) 2007-06-07 2011-06-28 Harris Corporation Mixed radix conversion with a priori defined statistical artifacts
US7974413B2 (en) 2007-06-07 2011-07-05 Harris Corporation Spread spectrum communications system and method utilizing chaotic sequence
US7995757B2 (en) 2007-05-31 2011-08-09 Harris Corporation Closed galois field combination
US7995749B2 (en) 2007-10-30 2011-08-09 Harris Corporation Cryptographic system configured for extending a repetition period of a random sequence
US8005221B2 (en) 2007-08-01 2011-08-23 Harris Corporation Chaotic spread spectrum communications system receiver
US8040937B2 (en) 2008-03-26 2011-10-18 Harris Corporation Selective noise cancellation of a spread spectrum signal
US8064552B2 (en) 2008-06-02 2011-11-22 Harris Corporation Adaptive correlation
US8068571B2 (en) 2008-06-12 2011-11-29 Harris Corporation Featureless coherent chaotic amplitude modulation
US8139764B2 (en) 2008-05-06 2012-03-20 Harris Corporation Closed galois field cryptographic system
US8145692B2 (en) 2008-05-29 2012-03-27 Harris Corporation Digital generation of an accelerated or decelerated chaotic numerical sequence
US8165065B2 (en) 2008-10-09 2012-04-24 Harris Corporation Ad-hoc network acquisition using chaotic sequence spread waveform
US8180055B2 (en) 2008-02-05 2012-05-15 Harris Corporation Cryptographic system incorporating a digitally generated chaotic numerical sequence
US8200728B2 (en) 2008-05-29 2012-06-12 Harris Corporation Sine/cosine generator
US8312551B2 (en) 2007-02-15 2012-11-13 Harris Corporation Low level sequence as an anti-tamper Mechanism
US8320557B2 (en) 2008-05-08 2012-11-27 Harris Corporation Cryptographic system including a mixed radix number generator with chosen statistical artifacts
US8325702B2 (en) 2008-08-29 2012-12-04 Harris Corporation Multi-tier ad-hoc network in which at least two types of non-interfering waveforms are communicated during a timeslot
US8340295B2 (en) 2009-07-01 2012-12-25 Harris Corporation High-speed cryptographic system using chaotic sequences
US8345725B2 (en) 2010-03-11 2013-01-01 Harris Corporation Hidden Markov Model detection for spread spectrum waveforms
US8351484B2 (en) 2008-12-29 2013-01-08 Harris Corporation Communications system employing chaotic spreading codes with static offsets
US8363700B2 (en) 2009-07-01 2013-01-29 Harris Corporation Rake receiver for spread spectrum chaotic communications systems
US8363830B2 (en) 2008-02-07 2013-01-29 Harris Corporation Cryptographic system configured to perform a mixed radix conversion with a priori defined statistical artifacts
US8369377B2 (en) 2009-07-22 2013-02-05 Harris Corporation Adaptive link communications using adaptive chaotic spread waveform
US8369376B2 (en) 2009-07-01 2013-02-05 Harris Corporation Bit error rate reduction in chaotic communications
US8379689B2 (en) 2009-07-01 2013-02-19 Harris Corporation Anti-jam communications having selectively variable peak-to-average power ratio including a chaotic constant amplitude zero autocorrelation waveform
US8385385B2 (en) 2009-07-01 2013-02-26 Harris Corporation Permission-based secure multiple access communication systems
US8406276B2 (en) 2008-12-29 2013-03-26 Harris Corporation Communications system employing orthogonal chaotic spreading codes
US8406352B2 (en) 2009-07-01 2013-03-26 Harris Corporation Symbol estimation for chaotic spread spectrum signal
US8428102B2 (en) 2009-06-08 2013-04-23 Harris Corporation Continuous time chaos dithering
US8428104B2 (en) 2009-07-01 2013-04-23 Harris Corporation Permission-based multiple access communications systems
US8428103B2 (en) 2009-06-10 2013-04-23 Harris Corporation Discrete time chaos dithering
US8457077B2 (en) 2009-03-03 2013-06-04 Harris Corporation Communications system employing orthogonal chaotic spreading codes
US8509284B2 (en) 2009-06-08 2013-08-13 Harris Corporation Symbol duration dithering for secured chaotic communications
US8611530B2 (en) 2007-05-22 2013-12-17 Harris Corporation Encryption via induced unweighted errors
US8848909B2 (en) 2009-07-22 2014-09-30 Harris Corporation Permission-based TDMA chaotic communication systems

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8312551B2 (en) 2007-02-15 2012-11-13 Harris Corporation Low level sequence as an anti-tamper Mechanism
US7937427B2 (en) 2007-04-19 2011-05-03 Harris Corporation Digital generation of a chaotic numerical sequence
US7921145B2 (en) 2007-05-22 2011-04-05 Harris Corporation Extending a repetition period of a random sequence
US8611530B2 (en) 2007-05-22 2013-12-17 Harris Corporation Encryption via induced unweighted errors
US7995757B2 (en) 2007-05-31 2011-08-09 Harris Corporation Closed galois field combination
US7962540B2 (en) 2007-06-07 2011-06-14 Harris Corporation Mixed radix number generator with chosen statistical artifacts
US7974413B2 (en) 2007-06-07 2011-07-05 Harris Corporation Spread spectrum communications system and method utilizing chaotic sequence
US7970809B2 (en) 2007-06-07 2011-06-28 Harris Corporation Mixed radix conversion with a priori defined statistical artifacts
EP2000901A3 (en) * 2007-06-07 2009-08-26 Harris Corporation Mixed radix number generator with chosen statistical artifacts
US8005221B2 (en) 2007-08-01 2011-08-23 Harris Corporation Chaotic spread spectrum communications system receiver
US7995749B2 (en) 2007-10-30 2011-08-09 Harris Corporation Cryptographic system configured for extending a repetition period of a random sequence
US8180055B2 (en) 2008-02-05 2012-05-15 Harris Corporation Cryptographic system incorporating a digitally generated chaotic numerical sequence
US8363830B2 (en) 2008-02-07 2013-01-29 Harris Corporation Cryptographic system configured to perform a mixed radix conversion with a priori defined statistical artifacts
US8040937B2 (en) 2008-03-26 2011-10-18 Harris Corporation Selective noise cancellation of a spread spectrum signal
US8139764B2 (en) 2008-05-06 2012-03-20 Harris Corporation Closed galois field cryptographic system
US8320557B2 (en) 2008-05-08 2012-11-27 Harris Corporation Cryptographic system including a mixed radix number generator with chosen statistical artifacts
US8145692B2 (en) 2008-05-29 2012-03-27 Harris Corporation Digital generation of an accelerated or decelerated chaotic numerical sequence
US8200728B2 (en) 2008-05-29 2012-06-12 Harris Corporation Sine/cosine generator
US8064552B2 (en) 2008-06-02 2011-11-22 Harris Corporation Adaptive correlation
US8068571B2 (en) 2008-06-12 2011-11-29 Harris Corporation Featureless coherent chaotic amplitude modulation
US8325702B2 (en) 2008-08-29 2012-12-04 Harris Corporation Multi-tier ad-hoc network in which at least two types of non-interfering waveforms are communicated during a timeslot
US8165065B2 (en) 2008-10-09 2012-04-24 Harris Corporation Ad-hoc network acquisition using chaotic sequence spread waveform
US8406276B2 (en) 2008-12-29 2013-03-26 Harris Corporation Communications system employing orthogonal chaotic spreading codes
US8351484B2 (en) 2008-12-29 2013-01-08 Harris Corporation Communications system employing chaotic spreading codes with static offsets
US8457077B2 (en) 2009-03-03 2013-06-04 Harris Corporation Communications system employing orthogonal chaotic spreading codes
US8509284B2 (en) 2009-06-08 2013-08-13 Harris Corporation Symbol duration dithering for secured chaotic communications
US8428102B2 (en) 2009-06-08 2013-04-23 Harris Corporation Continuous time chaos dithering
US8428103B2 (en) 2009-06-10 2013-04-23 Harris Corporation Discrete time chaos dithering
US8369376B2 (en) 2009-07-01 2013-02-05 Harris Corporation Bit error rate reduction in chaotic communications
US8385385B2 (en) 2009-07-01 2013-02-26 Harris Corporation Permission-based secure multiple access communication systems
US8406352B2 (en) 2009-07-01 2013-03-26 Harris Corporation Symbol estimation for chaotic spread spectrum signal
US8379689B2 (en) 2009-07-01 2013-02-19 Harris Corporation Anti-jam communications having selectively variable peak-to-average power ratio including a chaotic constant amplitude zero autocorrelation waveform
US8428104B2 (en) 2009-07-01 2013-04-23 Harris Corporation Permission-based multiple access communications systems
US8363700B2 (en) 2009-07-01 2013-01-29 Harris Corporation Rake receiver for spread spectrum chaotic communications systems
US8340295B2 (en) 2009-07-01 2012-12-25 Harris Corporation High-speed cryptographic system using chaotic sequences
US8369377B2 (en) 2009-07-22 2013-02-05 Harris Corporation Adaptive link communications using adaptive chaotic spread waveform
US8848909B2 (en) 2009-07-22 2014-09-30 Harris Corporation Permission-based TDMA chaotic communication systems
US8345725B2 (en) 2010-03-11 2013-01-01 Harris Corporation Hidden Markov Model detection for spread spectrum waveforms

Also Published As

Publication number Publication date
DE1537062C3 (en) 1974-08-08
SE338063B (en) 1971-08-30
NL6713111A (en) 1968-03-27
DE1537062B2 (en) 1974-01-17
FR1501059A (en) 1967-11-10
DE1537062A1 (en) 1969-09-18
CH472751A (en) 1969-05-15
BE704309A (en) 1968-03-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee