AT403992T - A cryptographic device and process - Google Patents

A cryptographic device and process

Info

Publication number
AT403992T
AT403992T AT99304886T AT99304886T AT403992T AT 403992 T AT403992 T AT 403992T AT 99304886 T AT99304886 T AT 99304886T AT 99304886 T AT99304886 T AT 99304886T AT 403992 T AT403992 T AT 403992T
Authority
AT
Austria
Prior art keywords
process
cryptographic device
cryptographic
device
Prior art date
Application number
AT99304886T
Other languages
German (de)
Inventor
Soichi Furuya
Michael Roe
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to EP99304886A priority Critical patent/EP1063811B1/en
Publication of AT403992T publication Critical patent/AT403992T/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/06Cryptographic mechanisms or cryptographic arrangements for secret or secure communication 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
    • H04L9/0618Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/06Cryptographic mechanisms or cryptographic arrangements for secret or secure communication 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
    • H04L9/065Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H04L9/0656Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
    • H04L9/0662Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60Digital content management, e.g. content distribution
    • H04L2209/601Broadcast encryption
AT99304886T 1999-06-22 1999-06-22 A cryptographic device and process AT403992T (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99304886A EP1063811B1 (en) 1999-06-22 1999-06-22 Cryptographic apparatus and method

Publications (1)

Publication Number Publication Date
AT403992T true AT403992T (en) 2008-08-15

Family

ID=8241469

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99304886T AT403992T (en) 1999-06-22 1999-06-22 A cryptographic device and process

Country Status (5)

Country Link
US (1) US7177424B1 (en)
EP (1) EP1063811B1 (en)
JP (1) JP3901909B2 (en)
AT (1) AT403992T (en)
DE (1) DE69939254D1 (en)

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Also Published As

Publication number Publication date
JP2001007800A (en) 2001-01-12
US7177424B1 (en) 2007-02-13
EP1063811B1 (en) 2008-08-06
EP1063811A1 (en) 2000-12-27
JP3901909B2 (en) 2007-04-04
DE69939254D1 (en) 2008-09-18

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Legal Events

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