Data Encryption System and Method

Details for Australian Patent Application No. 2003248442 (hide)

Owner NEC Corporation

Inventors Tsunoo, Yukiyaso

Agent Spruson & Ferguson

Pub. Number AU-B-2003248442

Priority 2002-280469 26.09.02 JP

Filing date 26 September 2003

Wipo publication date 22 April 2004

Acceptance publication date 14 May 2009

International Classifications

H04L 9/28 (2006.01) Arrangements for secret or secure communication - using particular encryption algorithm

G06F 12/08 (2006.01) Accessing, addressing or allocating within memory systems or architectures - in hierarchically structured memory systems, e.g. virtual memory systems

G06F 21/00 (2006.01) Security arrangements for protecting computers or computer systems against unauthorised activity

G06F 21/06 (2006.01) Security arrangements for protecting computers or computer systems against unauthorised activity

G06F 21/24 (2006.01) Security arrangements for protecting computers or computer systems against unauthorised activity

G09C 1/00 (2006.01) 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

H04L 9/06 (2006.01) Arrangements for secret or secure communication -

H04L 9/10 (2006.01) Arrangements for secret or secure communication - with particular housing, physical features or manual controls

H04L 9/18 (2006.01) Arrangements for secret or secure communication - Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems

Event Publications

16 October 2003 Complete Application Filed

  Priority application(s): 2002-280469 26.09.02 JP

22 April 2004 Application Open to Public Inspection

  Published as AU-B-2003248442

14 May 2009 Application Accepted

  Published as AU-B-2003248442

3 September 2009 Application for Amendment

  The nature of the amendment is as shown in the statement(s) filed 12 Aug 2009. Address for service in Australia - Spruson & Ferguson Level 35 St Martins Tower 31 Market Street Sydney NSW 2000

7 January 2010 Amendment Made

  The nature of the amendment is as shown in the statement(s) filed 12 Aug 2009

7 January 2010 Standard Patent Sealed

21 April 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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