DK0732657T3 - Method and apparatus for encoding and decoding information - Google Patents

Method and apparatus for encoding and decoding information

Info

Publication number
DK0732657T3
DK0732657T3 DK95103612T DK95103612T DK0732657T3 DK 0732657 T3 DK0732657 T3 DK 0732657T3 DK 95103612 T DK95103612 T DK 95103612T DK 95103612 T DK95103612 T DK 95103612T DK 0732657 T3 DK0732657 T3 DK 0732657T3
Authority
DK
Denmark
Prior art keywords
encoding
decoding information
algorithm
memory
unit
Prior art date
Application number
DK95103612T
Other languages
Danish (da)
Inventor
Andreas Koke
Christian Dr Schneider
Original Assignee
Utimaco Safeware Ag
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 Utimaco Safeware Ag filed Critical Utimaco Safeware Ag
Application granted granted Critical
Publication of DK0732657T3 publication Critical patent/DK0732657T3/en

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
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Devices For Executing Special Programs (AREA)

Abstract

The encryption unit Ä1Ü has a processor that performs the required algorithm that is stored in a memory Ä4Ü. The unit is located between the motherboard processor Ä2Ü and some form of system memory Ä3Ü. The unit provides decoding and coding functions depending upon the direction of data transmission. The memory containing the cryptographic algorithm allows the algorithm to be over-written but cannot be externally read.
DK95103612T 1995-03-14 1995-03-14 Method and apparatus for encoding and decoding information DK0732657T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95103612A EP0732657B1 (en) 1995-03-14 1995-03-14 Method and apparatus for enciphering and deciphering information

Publications (1)

Publication Number Publication Date
DK0732657T3 true DK0732657T3 (en) 2002-05-06

Family

ID=8219069

Family Applications (1)

Application Number Title Priority Date Filing Date
DK95103612T DK0732657T3 (en) 1995-03-14 1995-03-14 Method and apparatus for encoding and decoding information

Country Status (5)

Country Link
EP (1) EP0732657B1 (en)
AT (1) ATE213075T1 (en)
DE (1) DE59510039D1 (en)
DK (1) DK0732657T3 (en)
ES (1) ES2173132T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866450B1 (en) * 2004-02-17 2006-06-02 Enertec "ANTI-COMPROMISE" TYPE DATA RECORDING CARTRIDGE AND CORRESPONDING ANTI-COMPROMISE METHOD

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081675A (en) * 1989-11-13 1992-01-14 Kitti Kittirutsunetorn System for protection of software in memory against unauthorized use
GB9017683D0 (en) * 1990-08-13 1990-09-26 Marconi Gec Ltd Data security system
DK0638866T3 (en) * 1993-08-13 2000-03-06 Utimaco Safeware Ag Method and apparatus for encrypting and decrypting information

Also Published As

Publication number Publication date
DE59510039D1 (en) 2002-03-21
EP0732657B1 (en) 2002-02-06
ES2173132T3 (en) 2002-10-16
EP0732657A1 (en) 1996-09-18
ATE213075T1 (en) 2002-02-15

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