Information security – Access control or authentication – Network
Reexamination Certificate
2004-06-22
2008-12-16
Nalven, Andrew L (Department: 2134)
Information security
Access control or authentication
Network
C726S024000
Reexamination Certificate
active
07467405
ABSTRACT:
A method and system for detecting an unauthorized client system attempting to connect to a network of computer systems is disclosed. The network includes a certification authority server that includes a database of unique identification codes of authorized network client systems. A client system attempting to connect to the network transmits an authorization code over the network. If the client's authorization code matches an authorization code stored in the database of the certification authority server, then the client is authorized and is sent a network address which the client can use to communicate with other clients. However, if there is no match, the client is unauthorized and is scanned for viruses by an anti-virus server also on the network. Alternatively, the unauthorized client is blocked from the network without performing a virus scan.
REFERENCES:
patent: 5559960 (1996-09-01), Lettvin
patent: 5826012 (1998-10-01), Lettvin
patent: 6304969 (2001-10-01), Wasserman et al.
patent: 6502192 (2002-12-01), Nguyen
patent: 6631137 (2003-10-01), Lorrain et al.
patent: 6760748 (2004-07-01), Hakim
patent: 6826690 (2004-11-01), Hind et al.
patent: 2001/0044893 (2001-11-01), Skemer
patent: 2004/0076120 (2004-04-01), Ishidoshiro
patent: 2005/0246767 (2005-11-01), Fazal et al.
“BOOTP”, www.webopedia.com/TERM/B/BOOTP.html, Nov. 4, 2003, 1 page.
“Bootstrap Protocol (bootp)”, www.linus.about.com/cs/linus101/g/bootp.htm?terms=bootp, Nov. 4, 2003, 1 page.
“BOOTP, Bootstrap Protocol”, www.networsorcery.com/enp/protocol/bootp.htm, Nov. 4, 2003, 4 pages.
“DHCP”, http://compnetworking.about.com/library/glossary/bldef-dhcp.htm, Nov. 4, 2003, 1 page.
“DHCP FAQ”, May 18, 2004, 24 pages.
“MAC address”, www.webopedia.com/TERM/M/MAC—address.html, Nov. 4, 2003, 2 pages.
“The MAC Address, The Introduction to MAC Addressing”, http://compnetworking.about.com/library/weekly/aa062202a.htm?terms=MAC+address, Nov. 4, 2003, 2 pages.
“The MAC Address, Finding MAC Addresses”, http://compnetworking.about.com/library/weekly/aa062202b.htm, Nov. 4, 2003, 2 pages.
“The MAC Address, Changing MAC Address” ttp://compnetworking.about.com/library/weekly/aa062202c.htm, Nov. 4, 2003, 3 pages.
Haynes & Boone LLP
Nalven Andrew L
Taiwan Semiconductor Manufacturing Company , Ltd.
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