Cryptography – Communication system using cryptography – Time segment interchange
Reexamination Certificate
2008-06-03
2008-06-03
Sheikh, Ayaz (Department: 2131)
Cryptography
Communication system using cryptography
Time segment interchange
C380S217000, C341S055000, C341S060000, C341S065000, C707S793000, C382S237000
Reexamination Certificate
active
07382878
ABSTRACT:
A system and method for encrypting and/or compressing an input data string is disclosed. The input data string is divided into a plurality of blocks of data that each contains a plurality of bits of data. A block code is used to identify the size of each of the blocks of data. The blocks of data are analyzed to determine how frequently different groups of bits of data are present within each block of data. The blocks of data are also analyzed to determine whether certain relationships among the groups of bits of data exist within the blocks of data. After the blocks of data are analyzed, and in response to the analyses, a control code is generated for each block of data through the use of a control code index. After the control code for each block of data is generated, a position code is also generated for each block of data in response to the control code for the corresponding block of data. The control code, block code, and position code for each of the blocks of data can then be combined to produce an encrypted data string.
REFERENCES:
patent: 3656178 (1972-04-01), De Maine et al.
patent: 4117470 (1978-09-01), Elliott
patent: 4200770 (1980-04-01), Hellman
patent: 4218582 (1980-08-01), Hellman
patent: 4319079 (1982-03-01), Best
patent: 4386416 (1983-05-01), Giltner
patent: 4405829 (1983-09-01), Rivest
patent: 4424414 (1984-01-01), Hellman
patent: 4494151 (1985-01-01), Liao
patent: 4558302 (1985-12-01), Welch
patent: 4612532 (1986-09-01), Bacon et al.
patent: 4700175 (1987-10-01), Bledsoe
patent: 4701745 (1987-10-01), Waterworth
patent: 4814746 (1989-03-01), Miller
patent: 4852168 (1989-07-01), Sprague
patent: 4899148 (1990-02-01), Sato
patent: 5003307 (1991-03-01), Whiting
patent: 5016009 (1991-05-01), Whiting
patent: 5049880 (1991-09-01), Stevens
patent: 5109437 (1992-04-01), Honda
patent: 5126739 (1992-06-01), Whiting
patent: 5181031 (1993-01-01), Tong
patent: 5227789 (1993-07-01), Barry
patent: 5239298 (1993-08-01), Wei
patent: 5293379 (1994-03-01), Carr
patent: 5351299 (1994-09-01), Matsuzaki
patent: 5448642 (1995-09-01), Yeh
patent: 5453843 (1995-09-01), Levy
patent: 5463699 (1995-10-01), Wilkinson
patent: 5471207 (1995-11-01), Zandi
patent: 5479512 (1995-12-01), Weiss
patent: 5486826 (1996-01-01), Remillard
patent: 5517614 (1996-05-01), Tajima
patent: 5532694 (1996-07-01), Mayers et al.
patent: 5600726 (1997-02-01), Morgan
patent: 5861887 (1999-01-01), Butler et al.
patent: 5872530 (1999-02-01), Domyo et al.
patent: 5884269 (1999-03-01), Cellier et al.
patent: 5899988 (1999-05-01), Depledge et al.
patent: 5940833 (1999-08-01), Benson
patent: 6502064 (2002-12-01), Miyahira et al.
patent: 6597812 (2003-07-01), Fallon et al.
patent: 6772343 (2004-08-01), Shimizu et al.
patent: 6885749 (2005-04-01), Chang et al.
patent: 7035407 (2006-04-01), Hasegawa
patent: 7076060 (2006-07-01), Bilchev
patent: 7227948 (2007-06-01), Ohkuma et al.
Schneier, Bruce “Applied Cryptography” 1996, John Wiley and Sons, Second Edition, pp. 225.
Witten et al. “On the Privacy Afforded by Adaptive Text Compression”, 1988, Elsevier Science Publishers Ltd. Computers and Security, vol. 7, pp. 397-408.
IBM TDB NN71012438, “Data Compression Algorithms” 1971 IBM Corporation.
Witten et al., On the Privacy Afforded by Adaptive Text Compression, 1988, Elsevier Science Publishers Ltd. pp. 397-408.
Jones, Christopher B., An Efficient Coding System for Long Source Sequences, 1981, IEEE, pp. 280-291.
C.-Y. Chan and Y.E. Ioannidis. An efficient bitmap encoding scheme for selection queries. In Proc. Int. Conf. on Management of Data (SIGMOD), pp. 215-226, 1999.
Uponus, C.2000 web page, Inkado Plug-in Suite for Adobe PhotoShop.
Henning Matthew T
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sheikh Ayaz
Uponus Technologies, LLC
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