DE69529801T2 - Verfahren und System zum Schutz digitaler Informationen - Google Patents

Verfahren und System zum Schutz digitaler Informationen

Info

Publication number
DE69529801T2
DE69529801T2 DE69529801T DE69529801T DE69529801T2 DE 69529801 T2 DE69529801 T2 DE 69529801T2 DE 69529801 T DE69529801 T DE 69529801T DE 69529801 T DE69529801 T DE 69529801T DE 69529801 T2 DE69529801 T2 DE 69529801T2
Authority
DE
Germany
Prior art keywords
digital information
protecting digital
protecting
information
digital
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
DE69529801T
Other languages
English (en)
Other versions
DE69529801D1 (de
Inventor
Youichi Takashima
Shinji Ishii
Kiyoshi Yamanaka
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 JP29870294A external-priority patent/JP3327435B2/ja
Priority claimed from JP29994094A external-priority patent/JP3458979B2/ja
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Application granted granted Critical
Publication of DE69529801D1 publication Critical patent/DE69529801D1/de
Publication of DE69529801T2 publication Critical patent/DE69529801T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/44—Program or device authentication
    • G06F21/445—Program or device authentication by mutual authentication, e.g. between devices or programs
    • 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
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/109—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by using specially-adapted hardware at the client
    • 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
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/34—User authentication involving the use of external additional devices, e.g. dongles or smart cards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2101—Auditing as a secondary aspect
DE69529801T 1994-12-01 1995-12-01 Verfahren und System zum Schutz digitaler Informationen Expired - Fee Related DE69529801T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP29870294A JP3327435B2 (ja) 1994-12-01 1994-12-01 ディジタル情報保護システム及びその方法
JP29994094A JP3458979B2 (ja) 1994-12-02 1994-12-02 ディジタル情報保護システム及びその方法

Publications (2)

Publication Number Publication Date
DE69529801D1 DE69529801D1 (de) 2003-04-10
DE69529801T2 true DE69529801T2 (de) 2003-11-20

Family

ID=26561626

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69529801T Expired - Fee Related DE69529801T2 (de) 1994-12-01 1995-12-01 Verfahren und System zum Schutz digitaler Informationen

Country Status (3)

Country Link
US (1) US5701343A (de)
EP (1) EP0715242B1 (de)
DE (1) DE69529801T2 (de)

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Also Published As

Publication number Publication date
DE69529801D1 (de) 2003-04-10
US5701343A (en) 1997-12-23
EP0715242A1 (de) 1996-06-05
EP0715242B1 (de) 2003-03-05

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