Block cipher apparatus using auxiliary transformation

Details for Australian Patent Application No. 2003213312 (hide)

Owner Mitsubishi Denki Kabushiki Kaisha Nippon Telegraph and Telephone Corporation

Inventors Tokita, Toshio; Aoki, Kazumaro; Kanda, Masayuki; Moriai, Shiho; Matsui, Mitsuru; Nakajima, Junko

Agent Griffith Hack

Pub. Number AU-B-2003213312

Parent 41058

Filing date 8 July 2003

Wipo publication date 14 August 2003

Acceptance publication date 25 March 2004

International Classifications

G09C 001/00 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

Event Publications

24 July 2003 Complete Application Filed

14 August 2003 Application Open to Public Inspection

  Published as AU-B-2003213312

25 March 2004 Application Accepted

  Published as AU-B-2003213312

15 July 2004 Application for Amendment

  The nature of the amendment is as shown in the statement(s) filed 02 Jun 2004. Address for service in Australia - Griffith Hack 509 St Kilda Road Melbourne VIC 3004

22 July 2004 Standard Patent Sealed

25 November 2004 Amendment Made

  The nature of the amendment is as shown in the statement(s) filed 02 Jun 2004

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