GB1167272A - Improvement to Key Generators for Cryptographic Devices - Google Patents
Improvement to Key Generators for Cryptographic DevicesInfo
- 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
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.
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)
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 |
-
1966
- 1966-09-26 FR FR77627A patent/FR1501059A/en not_active Expired
-
1967
- 1967-09-19 GB GB4270967A patent/GB1167272A/en not_active Expired
- 1967-09-23 DE DE19671537062 patent/DE1537062C3/en not_active Expired
- 1967-09-25 SE SE1316067A patent/SE338063B/xx unknown
- 1967-09-26 BE BE704309D patent/BE704309A/xx unknown
- 1967-09-26 NL NL6713111A patent/NL6713111A/xx unknown
- 1967-09-26 CH CH1344967A patent/CH472751A/en not_active IP Right Cessation
Cited By (38)
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 |