GB9718200D0 - Data security - Google Patents

Data security

Info

Publication number
GB9718200D0
GB9718200D0 GBGB9718200.0A GB9718200A GB9718200D0 GB 9718200 D0 GB9718200 D0 GB 9718200D0 GB 9718200 A GB9718200 A GB 9718200A GB 9718200 D0 GB9718200 D0 GB 9718200D0
Authority
GB
United Kingdom
Prior art keywords
data security
security
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Withdrawn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
GBGB9718200.0A
Other versions
GB2329096A (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.)
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.)
Filing date
Publication date
Application filed by nCipher Ltd filed Critical nCipher Ltd
Priority to GB9718200A priority Critical patent/GB2329096A/en
Publication of GB9718200D0 publication Critical patent/GB9718200D0/en
Priority to ZA986026A priority patent/ZA986026B/en
Priority to EP98935142A priority patent/EP1008251A1/en
Priority to AU84501/98A priority patent/AU8450198A/en
Priority to PCT/GB1998/002129 priority patent/WO1999012309A1/en
Publication of GB2329096A publication Critical patent/GB2329096A/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Withdrawn legal-status Critical Current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
    • H04L9/0643—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
EP98935142A EP1008251A1 (en) 1997-08-29 1998-07-17 System for generating sub-keys
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

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
US7139917B2 (en) 2000-06-05 2006-11-21 Phoenix Technologies 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

Also Published As

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

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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)