DE69120596D1 - Datenverschlüsselungsvorrichtung und Verfahren zur Datenverschlüsselung - Google Patents

Datenverschlüsselungsvorrichtung und Verfahren zur Datenverschlüsselung

Info

Publication number
DE69120596D1
DE69120596D1 DE69120596T DE69120596T DE69120596D1 DE 69120596 D1 DE69120596 D1 DE 69120596D1 DE 69120596 T DE69120596 T DE 69120596T DE 69120596 T DE69120596 T DE 69120596T DE 69120596 D1 DE69120596 D1 DE 69120596D1
Authority
DE
Germany
Prior art keywords
data encryption
encryption device
data
encryption
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
DE69120596T
Other languages
English (en)
Other versions
DE69120596T2 (de
Inventor
Thomas I Elmer
Tuan T Nguyen
Rung-Pan Lin
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.)
National Semiconductor Corp
Original Assignee
National Semiconductor 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
Application filed by National Semiconductor Corp filed Critical National Semiconductor Corp
Publication of DE69120596D1 publication Critical patent/DE69120596D1/de
Application granted granted Critical
Publication of DE69120596T2 publication Critical patent/DE69120596T2/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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • 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
    • G06F12/1408—Protection against unauthorised use of memory or access to memory by using cryptography
    • 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
    • G06F21/79—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 semiconductor storage media, e.g. directly-addressable memories
    • 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
    • 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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • 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
DE69120596T 1990-05-03 1991-04-19 Datenverschlüsselungsvorrichtung und Verfahren zur Datenverschlüsselung Expired - Fee Related DE69120596T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/518,117 US5058164A (en) 1990-05-03 1990-05-03 Encryption of streams of addressed information to be used for program code protection

Publications (2)

Publication Number Publication Date
DE69120596D1 true DE69120596D1 (de) 1996-08-08
DE69120596T2 DE69120596T2 (de) 1997-02-20

Family

ID=24062621

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69120596T Expired - Fee Related DE69120596T2 (de) 1990-05-03 1991-04-19 Datenverschlüsselungsvorrichtung und Verfahren zur Datenverschlüsselung

Country Status (5)

Country Link
US (1) US5058164A (de)
EP (1) EP0455064B1 (de)
JP (1) JPH04229346A (de)
KR (1) KR100227875B1 (de)
DE (1) DE69120596T2 (de)

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EP0097621A1 (de) * 1982-06-21 1984-01-04 SPL Software Protect AG Verfahren zur Verschleierung digitaler Information und Vorrichtung zur Durchführung des Verfahrens
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CH666972A5 (de) * 1984-07-02 1988-08-31 Software Protect Ltd Verfahren und einrichtung zur verschluesselten datenuebertragung in datenverarbeitungsanlagen.

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US5058164A (en) 1991-10-15
KR910020560A (ko) 1991-12-20
EP0455064A2 (de) 1991-11-06
KR100227875B1 (ko) 1999-11-01
JPH04229346A (ja) 1992-08-18
EP0455064B1 (de) 1996-07-03
DE69120596T2 (de) 1997-02-20
EP0455064A3 (en) 1991-11-21

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