GB2329308B - Encryption method and apparatus - Google Patents

Encryption method and apparatus

Info

Publication number: GB2329308B
Authority: GB; United Kingdom
Prior art keywords: encryption method; encryption
Prior art date: 1997-09-16
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.): Expired - Fee Related

Application number

GB9819988A

Other versions

GB2329308A (en

GB9819988D0 (en

Inventor

Mark Wentworth Rayne

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.)

Simoco International Ltd

Original Assignee

Simoco International 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.)

1997-09-16

Filing date

1998-09-14

Publication date

2000-02-09

1998-09-14 Application filed by Simoco International Ltd filed Critical Simoco International Ltd

1998-11-04 Publication of GB9819988D0 publication Critical patent/GB9819988D0/en

1999-03-17 Publication of GB2329308A publication Critical patent/GB2329308A/en

2000-02-09 Application granted granted Critical

2000-02-09 Publication of GB2329308B publication Critical patent/GB2329308B/en

2018-09-14 Anticipated expiration legal-status Critical

Status Expired - Fee Related 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/088—Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic algorithms

Landscapes

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

GB9819988A 1997-09-16 1998-09-14 Encryption method and apparatus Expired - Fee Related GB2329308B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GBGB9719726.3A GB9719726D0 (en)	1997-09-16	1997-09-16	Encryption method and apparatus

Publications (3)

Publication Number	Publication Date
GB9819988D0 GB9819988D0 (en)	1998-11-04
GB2329308A GB2329308A (en)	1999-03-17
GB2329308B true GB2329308B (en)	2000-02-09

Family

ID=10819178

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GBGB9719726.3A Pending GB9719726D0 (en)	1997-09-16	1997-09-16	Encryption method and apparatus
GB9819988A Expired - Fee Related GB2329308B (en)	1997-09-16	1998-09-14	Encryption method and apparatus

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GBGB9719726.3A Pending GB9719726D0 (en)	1997-09-16	1997-09-16	Encryption method and apparatus

Country Status (7)

Country	Link
EP (1)	EP1016239A1 (en)
CN (1)	CN1277769A (en)
AU (1)	AU9087598A (en)
GB (2)	GB9719726D0 (en)
IL (1)	IL135080A0 (en)
WO (1)	WO1999014887A1 (en)
ZA (1)	ZA988391B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7660986B1 (en)	1999-06-08	2010-02-09	General Instrument Corporation	Secure control of security mode
US7873166B2 (en) *	2005-09-13	2011-01-18	Avaya Inc.	Method for undetectably impeding key strength of encryption usage for products exported outside the U.S
US20080037775A1 (en)	2006-03-31	2008-02-14	Avaya Technology Llc	Verifiable generation of weak symmetric keys for strong algorithms
DE102010011657A1 (en) *	2010-03-17	2011-09-22	Siemens Aktiengesellschaft	Method and apparatus for providing at least one secure cryptographic key
CN103761486A (en) *	2013-12-02	2014-04-30	苗立地	Electronic file encryption method and device
NL2019735B1 (en) *	2017-10-16	2019-04-23	Abn Amro Bank N V	Secure communication system and method for transmission of messages

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2274229A (en) *	1992-12-19	1994-07-13	Ibm	Cryptography system.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5073934A (en) *	1990-10-24	1991-12-17	International Business Machines Corporation	Method and apparatus for controlling the use of a public key, based on the level of import integrity for the key
GB9503738D0 (en) *	1995-02-24	1995-04-19	Int Computers Ltd	Cryptographic key management

1997
- 1997-09-16 GB GBGB9719726.3A patent/GB9719726D0/en active Pending
1998
- 1998-09-14 CN CN98810547A patent/CN1277769A/en active Pending
- 1998-09-14 GB GB9819988A patent/GB2329308B/en not_active Expired - Fee Related
- 1998-09-14 EP EP98942910A patent/EP1016239A1/en not_active Withdrawn
- 1998-09-14 ZA ZA9808391A patent/ZA988391B/en unknown
- 1998-09-14 AU AU90875/98A patent/AU9087598A/en not_active Abandoned
- 1998-09-14 WO PCT/GB1998/002774 patent/WO1999014887A1/en not_active Application Discontinuation
- 1998-09-14 IL IL13508098A patent/IL135080A0/en unknown

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2274229A (en) *	1992-12-19	1994-07-13	Ibm	Cryptography system.

Also Published As

Publication number	Publication date
IL135080A0 (en)	2001-05-20
EP1016239A1 (en)	2000-07-05
GB2329308A (en)	1999-03-17
ZA988391B (en)	2000-03-22
AU9087598A (en)	1999-04-05
GB9819988D0 (en)	1998-11-04
CN1277769A (en)	2000-12-20
WO1999014887A1 (en)	1999-03-25
GB9719726D0 (en)	1998-03-18

Similar Documents

Publication	Publication Date	Title
EP0962072A4 (en)	2002-09-04	Encryption and decryption method and apparatus
EP1022985A4 (en)	2004-11-17	Lysis method and apparatus
SG83093A1 (en)	2001-09-18	Encryption/decryption method and encryption/ decryption apparatus
EP0890262A4 (en)	2000-09-13	Method and apparatus for in-camera encryption
GB9616783D0 (en)	1996-09-25	Method and apparatus
GB9803183D0 (en)	1998-04-08	Apparatus and method
GB9811425D0 (en)	1998-07-22	Apparatus and method
GB2329308B (en)	2000-02-09	Encryption method and apparatus
GB9722305D0 (en)	1997-12-17	Method and apparatus
GB9919611D0 (en)	1999-10-20	Apparatus and method
GB2326428B (en)	2000-01-26	Apparatus and method
GB9822769D0 (en)	1998-12-16	Method and apparatus
GB9827227D0 (en)	1999-02-03	Special effect apparatus and special effect method
GB9705463D0 (en)	1997-05-07	Method and apparatus
GB2319520B (en)	2000-11-29	De-salination apparatus and method
GB9929737D0 (en)	2000-02-09	Method and apparatus
GB9804246D0 (en)	1998-04-22	Electropermeabilisation method and apparatus
GB9611254D0 (en)	1996-07-31	Method and apparatus
GB9802137D0 (en)	1998-04-01	Cleasing apparatus and method
GB9823314D0 (en)	1998-12-23	Methods and apparatus
GB9614835D0 (en)	1996-09-04	Method and apparatus
GB9705204D0 (en)	1997-04-30	Method and apparatus
GB9715151D0 (en)	1997-09-24	Method and apparatus
GB9709798D0 (en)	1997-07-09	Apparatus and method
GB9703773D0 (en)	1997-04-16	Method and apparatus

Legal Events

Date	Code	Title	Description
2012-05-23	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20110914