Information security – Access control or authentication – Network
Reexamination Certificate
2006-04-04
2006-04-04
Sheikh, Ayaz (Department: 2131)
Information security
Access control or authentication
Network
C380S247000, C380S248000, C380S249000, C709S227000, C709S228000, C709S229000, C709S225000, C713S151000, C713S160000, C713S161000, C713S168000, C713S170000
Reexamination Certificate
active
07024688
ABSTRACT:
A technique for authenticating a user to a server using SIP messages includes forwarding an SIP request from the user agent to the server. The server then forwards a request for authentication to the user agent in response to the invite request, the request for authentication including information that the authentication will be performed using a UMTS AKA mechanism. The user agent then forwards and authentication response to the server in accordance with the UMTS AKA mechanism and the server then performs the appropriate actions to perform an invoked SIP procedure in response to the SIP request. The SIP request may include any standardized SIP request including an SIP INVITE request or an SIP REGISTER request.
REFERENCES:
patent: 6477644 (2002-11-01), Turunen
patent: 6693886 (2004-02-01), Haikonen et al.
Satellte-UMTS service provision using IP-based technology □□Fan, L; Sherif, R.E.; Gardiner, J.G.;□□Vehicular Technology Conference Proceedins, 2000 VTC 2000-□□Spring Tokyo 2000 IEEE 51st, vol. 3, May 15-18, 2000□□p.: 1970-1974 vol. 3.
IETF Draft Standard RFC 2617, issued Jun. 1999.
3GPP Technical Specification TS 33.102, issued Jul. 2000.
M. Handley et al., “SIP: Session Initiation Protocol”, IETF RFC 2543, Mar. 1999, p. 113, section 14-p. 119, section 15.3.
“Universal Mobile Telecommunications System (UMTS); 3G Security; Security Architecture (3G TS 33.102 version 3.5.0 Release 1999)”, ETSI TS 133 102 V3.5.0, Jul. 2000, p. 18, section 6.3-p. 22, section 6.3.3.
IEFT Draft Standard RFC 2543, issued Mar. 1999.
Faccin Stefano
Le Franck
Wolfner György
Chai Longbit
Nokia Corporation
Sheikh Ayaz
Squire Sanders & Dempsey L.L.P.
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