Title of Invention

A METHOD FOR ENHANCING THE SECURITY OF ENCRYPTED TRANSMISSION OF INFORMATION IN A NETWORK COMMUNICATION SYSTEM

Abstract A Method and Apparatus for a Security System for Wireless Networks is described. The technique involves encryption and decryption at the Physical layer. It also develops a criterion for choosing the encryption/decryption methodology for a particular embodiment for communication systems typically using a Viterbi Decoder and describes how the difficult-to-invert property of the Viterbi Decoder can be utilized to provide security against known-plaintext attacks. Some candidate encryption/decryption methodologies satisfying the developed criterion are also discussed.
Full Text

Documents:

1420-mum-2004-abstract(28-12-2004).pdf

1420-MUM-2004-ABSTRACT(GRANTED)-(31-10-2011).pdf

1420-mum-2004-cancelled pages(14-2-2008).pdf

1420-MUM-2004-CLAIMS(11-5-2009).pdf

1420-mum-2004-claims(28-12-2004).pdf

1420-mum-2004-claims(amended)-(14-2-2008).pdf

1420-MUM-2004-CLAIMS(GRANTED)-(31-10-2011).pdf

1420-MUM-2004-CORRESPONDENCE(11-5-2009).pdf

1420-mum-2004-correspondence(14-2-2008).pdf

1420-MUM-2004-CORRESPONDENCE(25-2-2010).pdf

1420-MUM-2004-CORRESPONDENCE(IPO)-(1-11-2011).pdf

1420-mum-2004-correspondence(ipo)-(11-6-2007).pdf

1420-mum-2004-description(complete)-(28-12-2004).pdf

1420-MUM-2004-DESCRIPTION(GRANTED)-(31-10-2011).pdf

1420-mum-2004-drawing(28-12-2004).pdf

1420-MUM-2004-DRAWING(GRANTED)-(31-10-2011).pdf

1420-mum-2004-form 1(28-12-2004).pdf

1420-mum-2004-form 18(10-11-2006).pdf

1420-mum-2004-form 2(28-12-2004).pdf

1420-MUM-2004-FORM 2(GRANTED)-(31-10-2011).pdf

1420-mum-2004-form 2(title page)-(28-12-2004).pdf

1420-MUM-2004-FORM 2(TITLE PAGE)-(GRANTED)-(31-10-2011).pdf

1420-mum-2004-form 26(28-12-2004).pdf

1420-mum-2004-form 3(14-2-2008).pdf

1420-MUM-2004-FORM 3(14-3-2005).pdf

1420-mum-2004-form 3(28-12-2004).pdf

1420-mum-2004-marked copy(14-2-2008).pdf

1420-mum-2004-petition under rule 137(15-3-2005).pdf


Patent Number 249631
Indian Patent Application Number 1420/MUM/2004
PG Journal Number 44/2011
Publication Date 04-Nov-2011
Grant Date 31-Oct-2011
Date of Filing 28-Dec-2004
Name of Patentee TATA CONSULTANCY SERVICES LIMITED
Applicant Address BOMBAY HOUSE, 24, SIR HOMI MODY STREET, MUMBAI
Inventors:
# Inventor's Name Inventor's Address
1 ARPAN PAL SDF BUILDING, 3RD FLOOR, SALT LAKE ELECTRONICS COMPLEX, SECTOR V, SALT LAKE, KOLKATA 700 091.
2 BALAMURALIDHAR PURUSHOTHAMAN INTERNATIONAL TECH PARK, 11TH FLOOR, WHITEFIELD ROAD, BANGALORE-560 066.
3 HARISH THIMA REDDY INTERNATIONAL TECH PARK, 11TH FLOOR, WHITEFIELD ROAD, BANGALORE-560 066.
4 GANAPATHY VISWANATH INTERNATIONAL TECH PARK, 11TH FLOOR, WHITEFIELD ROAD, BANGALORE-560 066.
PCT International Classification Number H04L 9/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA