GB8718674D0 - Data encipherment - Google Patents

Data encipherment

Info

Publication number
GB8718674D0
GB8718674D0 GB8718674A GB8718674A GB8718674D0 GB 8718674 D0 GB8718674 D0 GB 8718674D0 GB 8718674 A GB8718674 A GB 8718674A GB 8718674 A GB8718674 A GB 8718674A GB 8718674 D0 GB8718674 D0 GB 8718674D0
Authority
GB
United Kingdom
Prior art keywords
data encipherment
encipherment
data
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Withdrawn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
GB8718674A
Other versions
GB2194419A (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.)
British Broadcasting Corp
Original Assignee
British Broadcasting Corp
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 British Broadcasting Corp filed Critical British Broadcasting Corp
Publication of GB8718674D0 publication Critical patent/GB8718674D0/en
Publication of GB2194419A publication Critical patent/GB2194419A/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Withdrawn legal-status Critical Current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
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
GB8718674A 1986-08-08 1987-08-06 Data encipherment Withdrawn GB2194419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8619453A GB8619453D0 (en) 1986-08-08 1986-08-08 Data encipherment

Publications (2)

Publication Number Publication Date
GB8718674D0 true GB8718674D0 (en) 1987-09-09
GB2194419A GB2194419A (en) 1988-03-02

Family

ID=10602487

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8619453A Pending GB8619453D0 (en) 1986-08-08 1986-08-08 Data encipherment
GB8718674A Withdrawn GB2194419A (en) 1986-08-08 1987-08-06 Data encipherment

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8619453A Pending GB8619453D0 (en) 1986-08-08 1986-08-08 Data encipherment

Country Status (4)

Country Link
EP (1) EP0277186A1 (en)
JP (1) JPH01500794A (en)
GB (2) GB8619453D0 (en)
WO (1) WO1988001119A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228650A (en) * 1989-01-24 1990-08-29 P C Hire Ltd A data encryption device
BE1003932A6 (en) * 1989-04-28 1992-07-22 Musyck Emile Cryptographic system by bit data block.
US5003597A (en) * 1989-12-21 1991-03-26 Xerox Corporation Method and apparatus for data encryption
RU2141729C1 (en) * 1998-01-19 1999-11-20 Государственное унитарное предприятие Специализированный центр программных систем "Спектр" Method for encrypting of binary data units
GB2415798A (en) * 2004-06-29 2006-01-04 Farhad Dalvi A non-deterministic secret key cipher using bit permutations

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275265A (en) * 1978-10-02 1981-06-23 Wisconsin Alumni Research Foundation Complete substitution permutation enciphering and deciphering circuit
FR2486680B1 (en) * 1980-07-11 1986-07-25 Trt Telecom Radio Electr METHOD AND DEVICE FOR SWITCHING ELEMENTS OF AN ASSEMBLY
SE426128B (en) * 1981-04-08 1982-12-06 Philips Svenska Ab METHOD FOR TRANSFER OF DATA MESSAGES BETWEEN TWO STATIONS, AND TRANSFER PLANT FOR EXECUTING THE METHOD
US4531020A (en) * 1982-07-23 1985-07-23 Oak Industries Inc. Multi-layer encryption system for the broadcast of encrypted information
GB2131586B (en) * 1982-12-03 1985-11-20 Burroughs Corp Autoteller systems
GB2149944A (en) * 1983-11-14 1985-06-19 Softnet Inc Software distribution
GB2154108B (en) * 1984-02-07 1987-06-03 Communications Patents Ltd Broadcasting system
JPS6120442A (en) * 1984-07-09 1986-01-29 Toshiba Corp Chargeable broadcasting system
DE3565918D1 (en) * 1984-08-10 1988-12-01 Gretag Ag Enciphering/deciphering method
US4649233A (en) * 1985-04-11 1987-03-10 International Business Machines Corporation Method for establishing user authenication with composite session keys among cryptographically communicating nodes
FR2582174B1 (en) * 1985-05-15 1990-03-09 Thomson Csf SUBSTITUTION-PERMUTATION ENCRYPTION DEVICE

Also Published As

Publication number Publication date
GB2194419A (en) 1988-03-02
WO1988001119A1 (en) 1988-02-11
JPH01500794A (en) 1989-03-16
GB8619453D0 (en) 1986-09-17
EP0277186A1 (en) 1988-08-10

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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)