The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2011
Filed:
Jun. 08, 2005
Siyi Zhou, Shenzhen, CN;
Siyi Zhou, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A Session Initiation Protocol (SIP) authentication method, sends a request message without authentication information to a server end from a client to request for access; sends back a response message, which contains authentication exchange information and DH authentication response information of the server end when the server end receives the request message; authenticates the received response message by the client and sending a request message, which contains authentication information of the client, to the server end after the authentication is passed; authenticates a user according to the received request message by the server end, and sends back a response message which contains the authentication information of the server end; authenticates the legality of the server end by the user according to the received response message, which contains the authentication information of the server end.