GB8619453D0 - Data encipherment - Google Patents

Data encipherment

Info

Publication number
GB8619453D0
GB8619453D0 GB8619453A GB8619453A GB8619453D0 GB 8619453 D0 GB8619453 D0 GB 8619453D0 GB 8619453 A GB8619453 A GB 8619453A GB 8619453 A GB8619453 A GB 8619453A GB 8619453 D0 GB8619453 D0 GB 8619453D0
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.)
Pending
Application number
GB8619453A
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
Priority to GB8619453A priority Critical patent/GB8619453D0/en
Publication of GB8619453D0 publication Critical patent/GB8619453D0/en
Priority to PCT/GB1987/000557 priority patent/WO1988001119A1/en
Priority to GB8718674A priority patent/GB2194419A/en
Priority to EP19870905233 priority patent/EP0277186A1/en
Priority to JP50473887A priority patent/JPH01500794A/en
Pending legal-status Critical Current

Links

GB8619453A 1986-08-08 1986-08-08 Data encipherment Pending GB8619453D0 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB8619453A GB8619453D0 (en) 1986-08-08 1986-08-08 Data encipherment
PCT/GB1987/000557 WO1988001119A1 (en) 1986-08-08 1987-08-06 Data encipherment
GB8718674A GB2194419A (en) 1986-08-08 1987-08-06 Data encipherment
EP19870905233 EP0277186A1 (en) 1986-08-08 1987-08-06 Data encipherment
JP50473887A JPH01500794A (en) 1986-08-08 1987-08-06 Data encryption method

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB8619453D0 true GB8619453D0 (en) 1986-09-17

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 After (1)

Application Number Title Priority Date Filing Date
GB8718674A Withdrawn GB2194419A (en) 1986-08-08 1987-08-06 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
EP0152251A3 (en) * 1984-02-07 1986-07-30 Communications Patents Limited Broadcasting system
JPS6120442A (en) * 1984-07-09 1986-01-29 Toshiba Corp Chargeable broadcasting system
EP0173647B1 (en) * 1984-08-10 1988-10-26 GRETAG Aktiengesellschaft 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
EP0277186A1 (en) 1988-08-10
WO1988001119A1 (en) 1988-02-11
JPH01500794A (en) 1989-03-16
GB8718674D0 (en) 1987-09-09

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