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Method for carrying out wireless network general authentication on drift user

A general authentication, wireless network technology, applied in the field of drift authentication process, can solve the problem of leaking the user's identity and geography, and achieve the effect of ensuring anonymity and ensuring untraceability

Inactive Publication Date: 2013-06-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the drift method may leak the user's identity and geographical privacy information during the authentication process, user privacy in the drift service has also become a very serious problem.

Method used

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  • Method for carrying out wireless network general authentication on drift user
  • Method for carrying out wireless network general authentication on drift user

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The relevant technical terms are as follows:

[0019] H – Home server

[0020] V – Foreign Server

[0021] Ui – user whose home server is H

[0022] ECDSA - Elliptic Curve Scalar Multiplication (Elliptic Curve Scalar Multiplication)

[0023] VLR-GS-BU - Verifier-Local Revocation Group Signature with Backward Unlinkability

[0024] mpk – the master public key contained in the digital certificate (Master Public Key)

[0025] usk[i] - user i's key (User Secret Key)

[0026] RL – Revocation List

[0027] p – a large prime number

[0028] G – cyclic group containing p elements

[0029] hj – an element of G

[0030] g – key generator (generator)

[0031] alias – the temporary identity used by the user for login requests

[0032] - Concatenation operation of two bit strings

[0033] - Encrypt content X with symmetric key K

[0034] - is marked as Information

[0035] – A set of numbers less than p (excluding 1 and common divisors of p)

[0036] - Ra...

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PUM

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Abstract

The invention discloses a method for carrying out wireless network general authentication on a drift user, comprising the following steps: a home server and nonlocal servers acquire digital certificates, the home server generates secret keys for authorized users of the home server, and the home server broadcasts the digital certificates of all the nonlocal servers to all the authorized users; andthe nonlocal servers download a list of cancelled users form the home server periodically. When the drift user moves into the region of a nonlocal server, the secret keys generated by the home serverare utilized to carry out group signature on logon request information, the nonlocal server implements group signature authentication on the logon request information of the drift user after group signature according to the list of cancelled users downloaded from the home server, so as to judge whether the drift user is the authenticated user of the home server or not, if not, the nonlocal serverrejects the logon request information of the drift user; and if yes, the nonlocal server and the drift user respectively generate a session key and utilize the generated session keys to mutually communicate.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a drift authentication process in a wireless network. Background technique [0002] Wireless networks and mobile devices are gradually improving our daily lives. In order to allow mobile users to seamlessly connect across regions without geographical restrictions, drift services should be established. A typical drift service includes three parts: the drift user, the foreign server to be accessed by the user, and the home server (the server registered by the user). When the user enters the service area of ​​the foreign server, the drift service can enable the user to access the registered service through the external network. Direct communications are established between the user and the foreign server, and between the foreign server and the home server, respectively, but there is no direct communication between the user and the home server. To preven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/06H04W12/08H04W12/069
Inventor 陈纯卜佳俊何道敬赵志为尹明剑高艺
Owner ZHEJIANG UNIV