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Certificate-free remote anonymous authentication method for wireless body area network

A wireless body area network and anonymous authentication technology, applied in the field of certificateless remote anonymous authentication, which can solve the problems of high computational complexity and inability to achieve anonymity.

Inactive Publication Date: 2014-08-20
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although many certificateless remote authentication schemes have been proposed, most of them have high computational complexity and cannot achieve complete anonymity.

Method used

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  • Certificate-free remote anonymous authentication method for wireless body area network
  • Certificate-free remote anonymous authentication method for wireless body area network
  • Certificate-free remote anonymous authentication method for wireless body area network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] refer to figure 1 , the implementation steps of the present invention are as follows:

[0044] Step 1, initialization:

[0045] (1a) The network manager determines the size of the safety factor l and the prime number q according to the safety requirements, and uses the elliptic curve to construct the bilinear map e(G 1 , G 2 ) → G 2 The cyclic addition group G of 1 and the cyclic multiplicative group G 2 ;

[0046] (1b) The network manager chooses the following collision-free hash function H: {0, 1) * ×G 1 →G 1 and where H is a 0 / 1 sequence of varying lengths and G 1 Elements in G are mapped to G 1 The hash function of the elements above, h is the 0 / 1 sequence of different lengths and G 1 The elements in are mapped to the integer multiplicative group of modq The hash function of the above elements;

[0047] (1c) The network manager starts from the integer multiplication group Randomly choose an integer s from NM As its own private key and stored, calc...

Embodiment 2

[0064] refer to figure 1 , the implementation steps of the present invention are as follows:

[0065] Step A, initialization:

[0066] (A1) The network manager determines the size of the safety factor l and the prime number q according to the safety requirements, and uses the elliptic curve to construct the bilinear map e(G 1 , G 2 ) → G 2 The cyclic addition group G of 1 and the cyclic multiplicative group G 2 ;

[0067] (A2) The network manager chooses the following collision-free hash function H: {0, 1} * ×G 1 →G 1 and where H is a 0 / 1 sequence of varying lengths and G 1 Elements in G are mapped to G 1 The hash function of the elements above, h is the 0 / 1 sequence of different lengths and G 1 The elements in are mapped to the integer multiplicative group of modq The hash function of the above elements;

[0068] (A3) Network managers start from the integer multiplication group Randomly choose an integer s from NM As its own private key and stored, calculat...

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Abstract

The invention discloses a certificate-free anonymous authentication method for a wireless body area network, which mainly solves the anonymity problem of wireless body area network remote authentication, and mainly comprises the steps as follows: 1) a network manager initializes a whole wireless body area network system; 2) a wireless body area network user carries out identity register from the network manager; 3) the network manager issues an account index to the wireless body area network user; 4) the wireless body area network user uses the account index to disguisedly send a service request to the network manager; and 5) bidirectional authentication between an application service provider and the wireless body area network user is achieved. According to the invention, a certificate is not required, the defect of no key escrow is avoided, the security performance is high, the degree of complexity of calculation is low, and the method can be used for remote medical treatment monitoring and on other application occasions.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to certificateless remote anonymous authentication of a wireless body area network, which can be used for monitoring and managing remote patients' physical conditions. Background technique [0002] The management of remote patients' physical conditions and health crisis detection, so that patients can obtain the greatest freedom of mobility, has always been more concerned by people. In recent years, the application of wireless body area network in remote medical monitoring has attracted widespread attention at home and abroad. The wireless communication technology is used together with the wireless body area network system, and the collected physiological information is transmitted to remote medical sites by wireless transmission by arranging various wireless body area network nodes on the patient's body, such as health care centers, medical The site provid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L9/30
Inventor 刘景伟孙蓉张露白宝明
Owner XIDIAN UNIV
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