GB9718200D0 - Data security - Google Patents

Data security

Info

Publication number: GB9718200D0
Authority: GB; United Kingdom
Prior art keywords: data security; security; data
Prior art date: 1997-08-29
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn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

GBGB9718200.0A

Other versions

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.)

Thales Reading 1 Ltd

Original Assignee

nCipher 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.)

1997-08-29

Filing date

1997-08-29

Publication date

1997-11-05

1997-08-29 Application filed by nCipher Ltd filed Critical nCipher Ltd

1997-08-29 Priority to GB9718200A priority Critical patent/GB2329096A/en

1997-11-05 Publication of GB9718200D0 publication Critical patent/GB9718200D0/en

1998-07-08 Priority to ZA986026A priority patent/ZA986026B/en

1998-07-17 Priority to AU84501/98A priority patent/AU8450198A/en

1998-07-17 Priority to PCT/GB1998/002129 priority patent/WO1999012309A1/en

1998-07-17 Priority to EP98935142A priority patent/EP1008251A1/en

1999-03-10 Publication of GB2329096A publication Critical patent/GB2329096A/en

Status Withdrawn legal-status Critical Current

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
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
- 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
- H04L2209/24—Key scheduling, i.e. generating round keys or sub-keys for block encryption

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Computer Security & Cryptography (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Storage Device Security (AREA)

GB9718200A 1997-08-29 1997-08-29 Creating sub-keys from hashed cryptographic master key Withdrawn GB2329096A (en)

Priority Applications (5)

Application Number	Priority Date	Filing Date	Title
GB9718200A GB2329096A (en)	1997-08-29	1997-08-29	Creating sub-keys from hashed cryptographic master key
ZA986026A ZA986026B (en)	1997-08-29	1998-07-08	Data security
AU84501/98A AU8450198A (en)	1997-08-29	1998-07-17	System for generating sub-keys
PCT/GB1998/002129 WO1999012309A1 (en)	1997-08-29	1998-07-17	System for generating sub-keys
EP98935142A EP1008251A1 (en)	1997-08-29	1998-07-17	System for generating sub-keys

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB9718200A GB2329096A (en)	1997-08-29	1997-08-29	Creating sub-keys from hashed cryptographic master key

Publications (2)

Publication Number	Publication Date
GB9718200D0 true GB9718200D0 (en)	1997-11-05
GB2329096A GB2329096A (en)	1999-03-10

Family

ID=10818133

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB9718200A Withdrawn GB2329096A (en)	1997-08-29	1997-08-29	Creating sub-keys from hashed cryptographic master key

Country Status (5)

Country	Link
EP (1)	EP1008251A1 (en)
AU (1)	AU8450198A (en)
GB (1)	GB2329096A (en)
WO (1)	WO1999012309A1 (en)
ZA (1)	ZA986026B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU6816101A (en) *	2000-06-05	2001-12-17	Phoenix Tech Ltd	Systems, methods and software for remote password authentication using multiple servers
EP1418701A1 (en) *	2002-11-11	2004-05-12	STMicroelectronics Limited	Transmission and storage of encryption keys
CN105610848B (en) *	2016-01-08	2018-05-25	北京工业大学	Possess the centralized data security method and system of source data Security Assurance Mechanism

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5172414A (en) *	1991-09-13	1992-12-15	At&T Bell Laboratories	Speech and control message encrypton in cellular radio
US5483598A (en) *	1993-07-01	1996-01-09	Digital Equipment Corp., Patent Law Group	Message encryption using a hash function
CA2158290A1 (en) *	1994-09-29	1996-03-30	Leon A. Pintsov	Postage evidencing system with secure summary reports
EP0768774A3 (en) *	1995-10-16	1999-08-04	Sony Corporation	Method and apparatus for data encryption using a key generation hierarchy
US5608801A (en) *	1995-11-16	1997-03-04	Bell Communications Research, Inc.	Efficient cryptographic hash functions and methods for amplifying the security of hash functions and pseudo-random functions
GB2308282B (en) *	1995-12-15	2000-04-12	Lotus Dev Corp	Differential work factor cryptography method and system
US5754659A (en) *	1995-12-22	1998-05-19	General Instrument Corporation Of Delaware	Generation of cryptographic signatures using hash keys

1997
- 1997-08-29 GB GB9718200A patent/GB2329096A/en not_active Withdrawn
1998
- 1998-07-08 ZA ZA986026A patent/ZA986026B/en unknown
- 1998-07-17 WO PCT/GB1998/002129 patent/WO1999012309A1/en not_active Application Discontinuation
- 1998-07-17 AU AU84501/98A patent/AU8450198A/en not_active Abandoned
- 1998-07-17 EP EP98935142A patent/EP1008251A1/en not_active Withdrawn

Also Published As

Publication number	Publication date
WO1999012309A1 (en)	1999-03-11
EP1008251A1 (en)	2000-06-14
AU8450198A (en)	1999-03-22
ZA986026B (en)	1999-01-28
GB2329096A (en)	1999-03-10

Publication	Publication Date	Title
GB2329994B (en)	2001-08-08	Security case
GB2329539B (en)	2002-05-15	Security System
GB9415540D0 (en)	1994-09-21	Data security system
GB9812836D0 (en)	1998-08-12	Data security arrangement
GB2330267B (en)	2000-04-12	Security system
GB9812134D0 (en)	1998-08-05	Improved security system
GB9720448D0 (en)	1997-11-26	Security devices
GB9700094D0 (en)	1997-02-19	Security system
GB9718200D0 (en)	1997-11-05	Data security
GB9602441D0 (en)	1996-04-03	Security data use
GB2325268B (en)	2001-11-28	Computer security
GB9727399D0 (en)	1998-02-25	Data manipulation
GB2331045B (en)	2001-08-01	Security marking
GB9616803D0 (en)	1996-09-25	Data encryption
GB9700545D0 (en)	1997-03-05	Security systems
GB9802055D0 (en)	1998-03-25	Security devices
GB9700169D0 (en)	1997-02-26	Data safe
GB9712717D0 (en)	1997-08-20	Security instruments
ZA989268B (en)	1999-04-16	Security case
GB9723455D0 (en)	1998-01-07	Security case
GB9709124D0 (en)	1997-06-25	Security
GB9703189D0 (en)	1997-04-02	Security
GB9711074D0 (en)	1997-07-23	Security strikeplate
GB9723791D0 (en)	1998-01-07	Securline security
GB9708223D0 (en)	1997-06-11	Data summeriser

Legal Events

Date	Code	Title	Description
2003-05-28	WAP	Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)