Block cipher apparatus using auxiliary transformation

Details for Australian Patent Application No. 2003213318 (hide)

Owner Nippon Telegraph and Telephone Corporation Mitsubishi Denki Kabushiki Kaisha

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

Agent Griffith Hack

Pub. Number AU-B-2003213318

Parent 41058

Filing date 8 July 2003

Wipo publication date 14 August 2003

Acceptance publication date 15 July 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-2003213318

15 July 2004 Application Accepted

  Published as AU-B-2003213318

11 November 2004 Standard Patent Sealed

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