DE69621168T2 - Verfahren und System zur Software-Codierung und -Decodierung - Google Patents

Verfahren und System zur Software-Codierung und -Decodierung

Info

Publication number
DE69621168T2
DE69621168T2 DE69621168T DE69621168T DE69621168T2 DE 69621168 T2 DE69621168 T2 DE 69621168T2 DE 69621168 T DE69621168 T DE 69621168T DE 69621168 T DE69621168 T DE 69621168T DE 69621168 T2 DE69621168 T2 DE 69621168T2
Authority
DE
Germany
Prior art keywords
decoding method
software coding
coding
software
decoding
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
DE69621168T
Other languages
English (en)
Other versions
DE69621168D1 (de
Inventor
Ryota Akiyama
Makoto Yoshioka
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE69621168D1 publication Critical patent/DE69621168D1/de
Application granted granted Critical
Publication of DE69621168T2 publication Critical patent/DE69621168T2/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
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • 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
    • H04L9/34—Bits, or blocks of bits, of the telegraphic message being interchanged in time
    • 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]
    • 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
    • G06F21/602—Providing cryptographic facilities or services
    • 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
    • G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • 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
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H04L9/16—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms the keys or algorithms being changed during operation
    • 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
    • G06F2221/2107—File encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Bioethics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Technology Law (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Storage Device Security (AREA)
DE69621168T 1995-02-14 1996-02-13 Verfahren und System zur Software-Codierung und -Decodierung Expired - Fee Related DE69621168T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2570795 1995-02-14

Publications (2)

Publication Number Publication Date
DE69621168D1 DE69621168D1 (de) 2002-06-20
DE69621168T2 true DE69621168T2 (de) 2002-12-12

Family

ID=12173265

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69621168T Expired - Fee Related DE69621168T2 (de) 1995-02-14 1996-02-13 Verfahren und System zur Software-Codierung und -Decodierung

Country Status (5)

Country Link
US (1) US6636970B2 (de)
EP (2) EP0727746B1 (de)
KR (3) KR100291798B1 (de)
CN (2) CN1079973C (de)
DE (1) DE69621168T2 (de)

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CA2259738C (en) 1999-01-20 2012-10-16 Certicom Corp. A resilient cryptographic scheme
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WO2002006925A2 (en) 2000-07-18 2002-01-24 Bitarts Limited Digital data protection arrangement
US7093113B2 (en) 2001-01-09 2006-08-15 Veritas Operating Corporation Application model for dynamic computing environments in software sales cycle
JP2003006060A (ja) * 2001-06-19 2003-01-10 Hitachi Ltd ゲートウェイシステム
US7844813B2 (en) * 2001-07-13 2010-11-30 Durward D. Dupre Method, system and process for data encryption and transmission
CN100431295C (zh) * 2002-11-26 2008-11-05 松下电器产业株式会社 数据加密、解密方法及装置
DE10260406B4 (de) * 2002-12-16 2007-03-08 Francotyp-Postalia Gmbh Verfahren und Anordnung zur unterschiedlichen Erzeugung kryptographischer Sicherungen von Mitteilungen in einem Hostgerät
TWI261447B (en) * 2004-08-30 2006-09-01 Rdc Semiconductor Co Ltd Security system for data processing
US7211130B1 (en) * 2005-11-16 2007-05-01 E. I. Du Pont De Nemours And Company Disperse dye black ink
WO2008144524A1 (en) * 2007-05-18 2008-11-27 Verimatrix, Inc. System and method for defining programmable processing steps applied when protecting the data
US8504847B2 (en) * 2009-04-20 2013-08-06 Cleversafe, Inc. Securing data in a dispersed storage network using shared secret slices
KR101343681B1 (ko) 2012-09-24 2013-12-20 충북대학교 산학협력단 융합 암호 알고리즘의 구성 방법
CN104486084A (zh) * 2014-12-23 2015-04-01 辽宁科技大学 一种物联网加密系统和方法

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FR2471000B1 (fr) 1979-11-30 1985-06-28 Dassault Electronique Procede et dispositif de controle du nombre de tentatives d'acces a une memoire electronique, notamment celle d'un circuit integre d'un objet comme une carte de credit ou une carte d'achat
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US4446519A (en) 1981-05-26 1984-05-01 Corban International, Ltd. Method and apparatus for providing security for computer software
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US4652990A (en) 1983-10-27 1987-03-24 Remote Systems, Inc. Protected software access control apparatus and method
US4740890A (en) 1983-12-22 1988-04-26 Software Concepts, Inc. Software protection system with trial period usage code and unlimited use unlocking code both recorded on program storage media
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JPH063631B2 (ja) 1985-11-12 1994-01-12 ブラザー工業株式会社 情報出力装置の管理装置
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US4817140A (en) 1986-11-05 1989-03-28 International Business Machines Corp. Software protection system using a single-key cryptosystem, a hardware-based authorization system and a secure coprocessor
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US5222134A (en) 1990-11-07 1993-06-22 Tau Systems Corporation Secure system for activating personal computer software at remote locations
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Also Published As

Publication number Publication date
CN1079973C (zh) 2002-02-27
EP0727746A3 (de) 1996-11-20
KR100352783B1 (ko) 2002-09-16
CN1137670A (zh) 1996-12-11
KR960032188A (ko) 1996-09-17
US6636970B2 (en) 2003-10-21
EP0727746A2 (de) 1996-08-21
US20030084310A1 (en) 2003-05-01
EP1178386A2 (de) 2002-02-06
KR100291798B1 (ko) 2001-06-01
CN1323115A (zh) 2001-11-21
EP1178386A3 (de) 2006-03-01
KR100352782B1 (ko) 2002-09-16
EP0727746B1 (de) 2002-05-15
DE69621168D1 (de) 2002-06-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee