HK1038806A1 - Database management apparatus and encrypting/ decrypting system - Google Patents

Database management apparatus and encrypting/ decrypting system

Info

Publication number
HK1038806A1
HK1038806A1 HK01109010A HK01109010A HK1038806A1 HK 1038806 A1 HK1038806 A1 HK 1038806A1 HK 01109010 A HK01109010 A HK 01109010A HK 01109010 A HK01109010 A HK 01109010A HK 1038806 A1 HK1038806 A1 HK 1038806A1
Authority
HK
Hong Kong
Prior art keywords
encrypting
management apparatus
database management
decrypting system
decrypting
Prior art date
Application number
HK01109010A
Other languages
English (en)
Inventor
Makoto Sato
Tsuneharu Takeda
Junji Mori
Kazuo Kurosawa
Original Assignee
Casio Computer Co 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
Priority claimed from JP27920899A external-priority patent/JP3921892B2/ja
Priority claimed from JP29666999A external-priority patent/JP4081940B2/ja
Priority claimed from JP2000224534A external-priority patent/JP2002044073A/ja
Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Publication of HK1038806A1 publication Critical patent/HK1038806A1/xx

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • G06F21/6227—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database where protection concerns the structure of data, e.g. records, types, queries
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/40—Data acquisition and logging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99931—Database or file accessing
    • Y10S707/99933—Query processing, i.e. searching
    • Y10S707/99936—Pattern matching access

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Security & Cryptography (AREA)
  • Bioethics (AREA)
  • Health & Medical Sciences (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Physics (AREA)
  • Storage Device Security (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
HK01109010A 1999-09-30 2001-12-22 Database management apparatus and encrypting/ decrypting system HK1038806A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP27920899A JP3921892B2 (ja) 1999-09-30 1999-09-30 データベース管理装置、データベースシステム及び記録媒体
JP29666999A JP4081940B2 (ja) 1999-10-19 1999-10-19 データベース管理装置及び記録媒体
JP2000224534A JP2002044073A (ja) 2000-07-25 2000-07-25 暗号化方式及び復号化方式

Publications (1)

Publication Number Publication Date
HK1038806A1 true HK1038806A1 (en) 2002-03-28

Family

ID=27336635

Family Applications (1)

Application Number Title Priority Date Filing Date
HK01109010A HK1038806A1 (en) 1999-09-30 2001-12-22 Database management apparatus and encrypting/ decrypting system

Country Status (5)

Country Link
US (1) US7093137B1 (xx)
EP (1) EP1089194B1 (xx)
KR (2) KR100401225B1 (xx)
CN (1) CN1327379C (xx)
HK (1) HK1038806A1 (xx)

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Also Published As

Publication number Publication date
US7093137B1 (en) 2006-08-15
CN1303065A (zh) 2001-07-11
CN1327379C (zh) 2007-07-18
EP1089194A3 (en) 2007-04-04
KR20030058997A (ko) 2003-07-07
EP1089194A2 (en) 2001-04-04
EP1089194B1 (en) 2013-05-08
KR100398319B1 (ko) 2003-09-19
KR20010082528A (ko) 2001-08-30
KR100401225B1 (ko) 2003-10-10

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PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20110930