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GB2264373B - Data encryption apparatus and method - Google Patents

Data encryption apparatus and method

Info

Publication number
GB2264373B
GB2264373B GB9202451A GB9202451A GB2264373B GB 2264373 B GB2264373 B GB 2264373B GB 9202451 A GB9202451 A GB 9202451A GB 9202451 A GB9202451 A GB 9202451A GB 2264373 B GB2264373 B GB 2264373B
Authority
GB
United Kingdom
Prior art keywords
data encryption
encryption apparatus
data
encryption
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.)
Expired - Fee Related
Application number
GB9202451A
Other versions
GB2264373A (en
GB9202451D0 (en
Inventor
Mark Nolan
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.)
EUROLOGIC RESEARCH Ltd
Original Assignee
EUROLOGIC RESEARCH 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.)
Filing date
Publication date
Application filed by EUROLOGIC RESEARCH Ltd filed Critical EUROLOGIC RESEARCH Ltd
Priority to GB9202451A priority Critical patent/GB2264373B/en
Publication of GB9202451D0 publication Critical patent/GB9202451D0/en
Publication of GB2264373A publication Critical patent/GB2264373A/en
Application granted granted Critical
Publication of GB2264373B publication Critical patent/GB2264373B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/85—Protecting input, output or interconnection devices interconnection devices, e.g. bus-connected or in-line devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
GB9202451A 1992-02-05 1992-02-05 Data encryption apparatus and method Expired - Fee Related GB2264373B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9202451A GB2264373B (en) 1992-02-05 1992-02-05 Data encryption apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9202451A GB2264373B (en) 1992-02-05 1992-02-05 Data encryption apparatus and method

Publications (3)

Publication Number Publication Date
GB9202451D0 GB9202451D0 (en) 1992-03-18
GB2264373A GB2264373A (en) 1993-08-25
GB2264373B true GB2264373B (en) 1995-12-20

Family

ID=10709883

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9202451A Expired - Fee Related GB2264373B (en) 1992-02-05 1992-02-05 Data encryption apparatus and method

Country Status (1)

Country Link
GB (1) GB2264373B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6075858A (en) * 1995-10-27 2000-06-13 Scm Microsystems (U.S.) Inc. Encryption key system and method
GB2315575A (en) * 1996-07-19 1998-02-04 Ibm Encryption circuit in I/O subsystem
FR2758898B1 (en) * 1997-01-28 1999-03-05 Sagem METHOD FOR PRESERVING SOFTWARE DATA INTEGRITY
FI107669B (en) * 1998-02-13 2001-09-14 Nokia Mobile Phones Ltd Method and apparatus for encrypting information transfer
US7269259B1 (en) * 2000-05-01 2007-09-11 Xtex, Incorporated Methods and apparatus for authenticating data as originating from a storage and processing device and for securing software and data stored on the storage and processing device
US7242772B1 (en) * 2000-09-07 2007-07-10 Eastman Kodak Company Encryption apparatus and method for synchronizing multiple encryption keys with a data stream
JP2004510367A (en) * 2000-09-15 2004-04-02 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Protection by data chunk address as encryption key
EE200000390A (en) * 2000-11-02 2002-06-17 Artec Design Group O� Data encryption device based on protocol analysis
US6798602B2 (en) 2002-06-25 2004-09-28 International Business Machines Corporation Window based directory for magnetic tape
DE10345454A1 (en) * 2003-09-30 2005-04-28 Infineon Technologies Ag Private key generator for access to storage device e.g. chip card, has page pre-key calculating device and determines private key based on pre-key and word address
GB2419434A (en) * 2004-10-23 2006-04-26 Qinetiq Ltd Encrypting data on a computer's hard disk with a key derived from the contents of a memory
GB2431250A (en) 2005-10-11 2007-04-18 Hewlett Packard Development Co Data transfer system
GB2431254A (en) * 2005-10-11 2007-04-18 Hewlett Packard Development Co Data transfer system
GB2431249A (en) 2005-10-11 2007-04-18 Hewlett Packard Development Co Removable data storage item and key distribution
GB2431251A (en) * 2005-10-11 2007-04-18 Hewlett Packard Development Co Data transfer device
GB2431488A (en) * 2005-10-11 2007-04-25 Hewlett Packard Development Co Data transfer device
GB2431252B (en) * 2005-10-11 2010-06-09 Hewlett Packard Development Co Data transfer device
GB2435333B (en) 2006-02-01 2010-07-14 Hewlett Packard Development Co Data transfer device
US10073743B2 (en) 2006-07-26 2018-09-11 Hewlett Packard Enterprise Development Lp Data storage arrangement and key distribution
US20080107275A1 (en) * 2006-11-08 2008-05-08 Mehdi Asnaashari Method and system for encryption of information stored in an external nonvolatile memory
EP2053568A1 (en) * 2007-09-28 2009-04-29 Gemplus Method for generating masks in a communicating object and corresponding communicating object

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019503A1 (en) * 1979-05-10 1980-11-26 Thomson-Brandt Method of coding the digital indexing signals of images stored on a record carrier, device for reading the signals so coded and apparatus for transmitting audiovisual signals comprising such a device
US5081675A (en) * 1989-11-13 1992-01-14 Kitti Kittirutsunetorn System for protection of software in memory against unauthorized use
EP0531194A1 (en) * 1991-09-03 1993-03-10 Gemplus Card International Data authentication method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019503A1 (en) * 1979-05-10 1980-11-26 Thomson-Brandt Method of coding the digital indexing signals of images stored on a record carrier, device for reading the signals so coded and apparatus for transmitting audiovisual signals comprising such a device
US5081675A (en) * 1989-11-13 1992-01-14 Kitti Kittirutsunetorn System for protection of software in memory against unauthorized use
EP0531194A1 (en) * 1991-09-03 1993-03-10 Gemplus Card International Data authentication method

Also Published As

Publication number Publication date
GB2264373A (en) 1993-08-25
GB9202451D0 (en) 1992-03-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990205