GB0215026D0 - A communications systems - Google Patents

A communications systems

Info

Publication number
GB0215026D0
GB0215026D0 GB0215026A GB0215026A GB0215026D0 GB 0215026 D0 GB0215026 D0 GB 0215026D0 GB 0215026 A GB0215026 A GB 0215026A GB 0215026 A GB0215026 A GB 0215026A GB 0215026 D0 GB0215026 D0 GB 0215026D0
Authority
GB
United Kingdom
Prior art keywords
communications systems
communications
systems
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.)
Withdrawn
Application number
GB0215026A
Other versions
GB2379843A (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.)
Sepura Ltd
Original Assignee
Sepura Ltd
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 Sepura Ltd filed Critical Sepura Ltd
Publication of GB0215026D0 publication Critical patent/GB0215026D0/en
Publication of GB2379843A publication Critical patent/GB2379843A/en
Withdrawn legal-status Critical Current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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/12—Details relating to cryptographic hardware or logic circuitry
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80—Wireless

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
GB0215026A 2001-06-29 2002-06-28 Stream cipher encryption system in which a keystream can be extended by concatenating with another keystream to allow encryption of variable length bursts Withdrawn GB2379843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0116016A GB0116016D0 (en) 2001-06-29 2001-06-29 Communications systems

Publications (2)

Publication Number Publication Date
GB0215026D0 true GB0215026D0 (en) 2002-08-07
GB2379843A GB2379843A (en) 2003-03-19

Family

ID=9917676

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0116016A Ceased GB0116016D0 (en) 2001-06-29 2001-06-29 Communications systems
GB0215026A Withdrawn GB2379843A (en) 2001-06-29 2002-06-28 Stream cipher encryption system in which a keystream can be extended by concatenating with another keystream to allow encryption of variable length bursts

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0116016A Ceased GB0116016D0 (en) 2001-06-29 2001-06-29 Communications systems

Country Status (2)

Country Link
GB (2) GB0116016D0 (en)
WO (1) WO2003003648A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2402024B (en) * 2003-05-19 2005-07-13 Motorola Inc Processor,method,transmitter and terminal for use in communications
US8213607B2 (en) * 2006-10-18 2012-07-03 Qualcomm Incorporated Method for securely extending key stream to encrypt high-entropy data
JP5273963B2 (en) * 2007-07-23 2013-08-28 修 亀田 Pseudorandom number generation method and apparatus, and encryption method and apparatus using pseudorandom number
CN115496626B (en) * 2022-10-24 2023-05-16 国网浙江省电力有限公司象山县供电公司 Identification processing method and identification processing system for distribution network pattern transaction

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950013093A (en) * 1993-10-19 1995-05-17 모리시타 요이찌 Scramble Transfer Device and Random Number Generator
US5454039A (en) * 1993-12-06 1995-09-26 International Business Machines Corporation Software-efficient pseudorandom function and the use thereof for encryption
JP3086887B2 (en) * 1996-08-08 2000-09-11 株式会社ローレルインテリジェントシステムズ Information transmission method, information transmission method, information reproduction method, and communication device
CA2210199A1 (en) * 1997-07-11 1999-01-11 Mitel Corporation Method and apparatus for the generation of non-linear confusion data
FI107669B (en) * 1998-02-13 2001-09-14 Nokia Mobile Phones Ltd Method and arrangement for encrypting data transmission
DE69939254D1 (en) * 1999-06-22 2008-09-18 Hitachi Ltd Cryptographic device and method
DE69929251T2 (en) * 1999-10-20 2006-07-13 Fujitsu Ltd., Kawasaki ENCRYPTION SYSTEM WITH A KEY OF CHANGING LENGTH
US6763363B1 (en) * 1999-12-02 2004-07-13 Honeywell International Inc. Computer efficient linear feedback shift register

Also Published As

Publication number Publication date
GB2379843A (en) 2003-03-19
WO2003003648A1 (en) 2003-01-09
GB0116016D0 (en) 2001-08-22

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)