Title:
A METHOD FOR VERIFYING THE SUBSCRIBER'S VALIDITY
Document Type and Number:
WIPO Patent Application WO/2005/046118
Kind Code:
A1
Abstract:
The invention provides a method for verifying the subscriber's validity, making the most of TID as the bridge of credit relation between the NAF and the subscriber. BSF distributes the period of validity to the TID, increasing the function of the TID, which makes the NAF could check the period of validity of the TID applied by the subscriber, then could further verify the subscriber's validity. The application of the invention could avoid that a single TID is validity to a NAF forever, increase the system security, reduce the danger of subscriber's TID and relevant cipher theft, furthermore fulfill the NAF's management to the TID. In addition, the invention could combine with the billing system to easily carry out the billing function for the subscriber.
Inventors:
HUANG YINGXIN (CN)
Application Number:
PCT/CN2004/001209
Publication Date:
May 19, 2005
Filing Date:
October 25, 2004
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
HUANG YINGXIN (CN)
HUANG YINGXIN (CN)
International Classes:
H04B7/00; H04L9/08; H04L9/32; H04L29/06; H04W12/06; H04W12/12; (IPC1-7): H04L9/32
Domestic Patent References:
| WO2002013016A1 | 2002-02-14 |
Foreign References:
| US20030051140A1 | 2003-03-13 | |||
| CN1404267A | 2003-03-19 | |||
| CN1411199A | 2003-04-16 |
Other References:
See also references of EP 1681793A4
"Handbook of Applied Cryptography", 1997
"3GPP TS ab.cde V0.3.0:3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Bootstrapper of application security using AKA and Support for Subscriber Certificates; System Description", 3GPP TSG SA WG3 SECURITY-S3#30, October 2003 (2003-10-01)
"Handbook of Applied Cryptography", 1997
"3GPP TS ab.cde V0.3.0:3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Bootstrapper of application security using AKA and Support for Subscriber Certificates; System Description", 3GPP TSG SA WG3 SECURITY-S3#30, October 2003 (2003-10-01)
Attorney, Agent or Firm:
DEQI INTELLECTUAL PROPERTY LAW CORPORATION (No 1 Zhichun Road Haidian District, Beijing 3, CN)
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