NO20045596L - Fremgangsmate og anordning for omforming av data - Google Patents

Fremgangsmate og anordning for omforming av data

Info

Publication number
NO20045596L
NO20045596L NO20045596A NO20045596A NO20045596L NO 20045596 L NO20045596 L NO 20045596L NO 20045596 A NO20045596 A NO 20045596A NO 20045596 A NO20045596 A NO 20045596A NO 20045596 L NO20045596 L NO 20045596L
Authority
NO
Norway
Prior art keywords
data
key
transfer function
data transformation
function
Prior art date
Application number
NO20045596A
Other languages
English (en)
Other versions
NO337611B1 (no
Inventor
Tomomi Kasuya
Mitsuru Matsui
Tetsuya Ichikawa
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of NO20045596L publication Critical patent/NO20045596L/no
Publication of NO337611B1 publication Critical patent/NO337611B1/no

Links

Classifications

    • 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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • 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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • 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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/12—Details relating to cryptographic hardware or logic circuitry
    • H04L2209/122—Hardware reduction or efficient architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/12—Details relating to cryptographic hardware or logic circuitry
    • H04L2209/125—Parallelization or pipelining, e.g. for accelerating processing of cryptographic operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/24—Key scheduling, i.e. generating round keys or sub-keys for block encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Storage Device Security (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Holo Graphy (AREA)
  • Document Processing Apparatus (AREA)

Abstract

En underkonverter (330) tilveiebrakt i en dataomformingsanordning for kryptering/dekryptering av data har en dataomformingsfunksjon og en dataoverføringsfunksjon eller nøkkeloverføringsfunksjon, og omformer data og overfører data som er ikke-lineært omformet i en hovedkonverter (320) eller en nøkkel som er matet ut fra et key KL-register (240) ved å skifte mellom dataomformingsfunksjonen og data- eller nøkkeloverføringsfunksjonen
NO20045596A 2002-05-23 2004-12-22 Fremgangsmåte og anordning for omforming av data NO337611B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002148786A JP4128395B2 (ja) 2002-05-23 2002-05-23 データ変換装置
PCT/JP2003/002689 WO2003100751A1 (en) 2002-05-23 2003-03-07 Data conversion device and data conversion method

Publications (2)

Publication Number Publication Date
NO20045596L true NO20045596L (no) 2005-02-18
NO337611B1 NO337611B1 (no) 2016-05-09

Family

ID=29561194

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20045596A NO337611B1 (no) 2002-05-23 2004-12-22 Fremgangsmåte og anordning for omforming av data

Country Status (12)

Country Link
US (1) US7639800B2 (no)
EP (1) EP1507247B1 (no)
JP (1) JP4128395B2 (no)
KR (1) KR100806468B1 (no)
CN (1) CN1647139B (no)
AU (1) AU2003211779A1 (no)
CA (1) CA2485943C (no)
DK (1) DK1507247T3 (no)
ES (1) ES2565816T3 (no)
NO (1) NO337611B1 (no)
TW (1) TWI229299B (no)
WO (1) WO2003100751A1 (no)

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Also Published As

Publication number Publication date
TWI229299B (en) 2005-03-11
KR20050004187A (ko) 2005-01-12
US7639800B2 (en) 2009-12-29
DK1507247T3 (en) 2016-03-29
JP2003345244A (ja) 2003-12-03
NO337611B1 (no) 2016-05-09
TW200307226A (en) 2003-12-01
CN1647139B (zh) 2011-09-14
ES2565816T3 (es) 2016-04-07
EP1507247A4 (en) 2011-01-19
CA2485943A1 (en) 2003-12-04
KR100806468B1 (ko) 2008-02-21
US20050226407A1 (en) 2005-10-13
JP4128395B2 (ja) 2008-07-30
EP1507247B1 (en) 2016-02-24
WO2003100751A1 (en) 2003-12-04
CN1647139A (zh) 2005-07-27
CA2485943C (en) 2011-04-19
AU2003211779A1 (en) 2003-12-12
EP1507247A1 (en) 2005-02-16

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