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Wireless body area network anonymous authentication and key negotiation method based on blind signatures

A technology of wireless body area network and key agreement, which is applied in the field of anonymous authentication and key agreement of wireless body area network based on blind signature, and can solve difficult management problems

Active Publication Date: 2019-09-20
SOUTHWEST JIAOTONG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the authenticity and reliability of the identity between the user and the application service provider (AP), secure identity authentication and key negotiation are required. Provide anonymity protection. However, when a user encounters a dangerous situation, the network manager (NM) needs to track the user's real identity, that is, to meet the user's privacy protection requirements. In addition, the application service provider (AP) needs to revoke the The list identifies malicious users, but there is a problem that the revocation list grows rapidly and is difficult to manage

Method used

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  • Wireless body area network anonymous authentication and key negotiation method based on blind signatures

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Embodiment

[0091] Such as figure 1 As shown, a blind signature-based wireless body area network anonymous authentication and key agreement method, the implementation method is as follows:

[0092] S1. Registration and key distribution: Provide registration and authorization for the application service provider AP through the network manager NM, and calculate the blind signature for the user through the network manager NM. The implementation method is as follows:

[0093] A1. The private key sk of the preset network manager NM NM , and provide registration and authorization for the application service provider AP through the network manager NM, the implementation method is as follows:

[0094] B1. Select random number sk AP As the long-term private key of the application service provider AP;

[0095] B2, the random number sk AP Perform point multiplication based on the elliptic curve with the elliptic curve generator P preset by the network manager NM to obtain the long-term public ke...

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Abstract

The invention provides a wireless body area network anonymous authentication and key negotiation method based on blind signatures, which comprises the following steps of: registration and key distribution: adding a real identity of a user into a network manager database, and calculating a blind signature for the user by an NM; authentication and key negotiation: the user reconstructing a blind signature issued by the NM by introducing a random parameter for the authentication and key negotiation with an application service provider AP; and secret key updating: when the session secret key is lost or needs to be updated due to a certain reason, the AP updating the current session secret key. The method has conditional anonymity, can resist temporary key leakage attacks, and is high in security and low in calculation overhead.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to a blind signature-based wireless body area network anonymous authentication and key agreement method. Background technique [0002] In recent years, with the rapid development of the Internet of Things and the continuous enhancement of people's awareness of health care, the Wireless Body Area Network (WBAN) that can monitor and diagnose in real time around the human body has emerged as the times require. The wireless body area network mainly consists of three entities: the user (User) equipped with biometric sensors and mobile devices, the application service provider (AP) responsible for providing telemedicine services to users, and the network manager (NM) as a certificate generation center. . First, the network manager (NM) generates a signature for the user, and generates a certificate for the application service provider (AP). Then, the user and the...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04L9/30H04L9/08
CPCH04L9/0844H04L9/0891H04L9/3066H04L9/3236H04L9/3252H04L9/3257H04L9/3297H04L2209/80
Inventor 张文芳余东海王小敏
Owner SOUTHWEST JIAOTONG UNIV
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