GB9616803D0 - Data encryption - Google Patents

Data encryption

Info

Publication number
GB9616803D0
GB9616803D0 GBGB9616803.4A GB9616803A GB9616803D0 GB 9616803 D0 GB9616803 D0 GB 9616803D0 GB 9616803 A GB9616803 A GB 9616803A GB 9616803 D0 GB9616803 D0 GB 9616803D0
Authority
GB
United Kingdom
Prior art keywords
data encryption
encryption
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Withdrawn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
GBGB9616803.4A
Other versions
GB2316278A (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.)
FARIA RICHARD S
Original Assignee
FARIA RICHARD S
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 FARIA RICHARD S filed Critical FARIA RICHARD S
Priority to GB9616803A priority Critical patent/GB2316278A/en
Publication of GB9616803D0 publication Critical patent/GB9616803D0/en
Priority to AU38567/97A priority patent/AU3856797A/en
Priority to PCT/GB1997/002138 priority patent/WO1998007252A1/en
Publication of GB2316278A publication Critical patent/GB2316278A/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Withdrawn legal-status Critical Current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
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests
    • 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
    • H04L2209/30—Compression, e.g. Merkle-Damgard construction
    • 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
    • H04L2209/60—Digital content management, e.g. content distribution
    • H04L2209/603—Digital right managament [DRM]
GB9616803A 1996-08-09 1996-08-09 Data Encryption Withdrawn GB2316278A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9616803A GB2316278A (en) 1996-08-09 1996-08-09 Data Encryption
AU38567/97A AU3856797A (en) 1996-08-09 1997-08-11 Data encryption
PCT/GB1997/002138 WO1998007252A1 (en) 1996-08-09 1997-08-11 Data encryption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9616803A GB2316278A (en) 1996-08-09 1996-08-09 Data Encryption

Publications (2)

Publication Number Publication Date
GB9616803D0 true GB9616803D0 (en) 1996-09-25
GB2316278A GB2316278A (en) 1998-02-18

Family

ID=10798296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9616803A Withdrawn GB2316278A (en) 1996-08-09 1996-08-09 Data Encryption

Country Status (3)

Country Link
AU (1) AU3856797A (en)
GB (1) GB2316278A (en)
WO (1) WO1998007252A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6944296B1 (en) * 1999-03-24 2005-09-13 Intel Corporation Video bit scrambling
AU2001282484A1 (en) * 2000-08-31 2002-03-13 Nds Limited Non-standard coding systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6016083A (en) * 1983-07-07 1985-01-26 Sony Corp Television signal transmission system
FR2608338B1 (en) * 1986-12-15 1993-09-03 Dassault Electronique DEVICE FOR THE EXCHANGE OF CONFIDENTIAL DATA BETWEEN A SERIES OF TERMINALS AND A CONCENTRATOR
IT1272090B (en) * 1993-12-20 1997-06-11 Urmet Sud Costr Elett Telefon ENABLING SYSTEM FOR DECODING OF TELEVISION PROGRAMS.
US5477263A (en) * 1994-05-26 1995-12-19 Bell Atlantic Network Services, Inc. Method and apparatus for video on demand with fast forward, reverse and channel pause
US5544161A (en) * 1995-03-28 1996-08-06 Bell Atlantic Network Services, Inc. ATM packet demultiplexer for use in full service network having distributed architecture

Also Published As

Publication number Publication date
WO1998007252A1 (en) 1998-02-19
AU3856797A (en) 1998-03-06
GB2316278A (en) 1998-02-18

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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)