無(wú)線體域網(wǎng)中基于聚合簽名的匿名認(rèn)證研究
[Abstract]:Wireless Body Area Networks (WBAN) is a small human-centered wireless network composed of a set of wearable biosensors and a body master station (or mobile terminals, such as mobile phones, PDA, etc.). The wearable sensors in WBAN collect physiological information of human body and transmit physiological information through mobile terminals. Wireless body area network (WAN) has a very broad application prospect in the field of medical monitoring. Medical sensors implanted or worn in the human body can be long by collecting physiological information related to human health, such as blood pressure, blood sugar, heart rate, etc. It is important and private to monitor human health and provide accurate and timely data for doctors'diagnosis so that people can enjoy accurate and convenient medical services without leaving home. The openness of wireless communication environment is vulnerable to attack by malicious attackers, which will not only infringe on the privacy of users, but also endanger the health and safety of users. Therefore, in order to develop and popularize wireless body area networks on a large scale, it is necessary to design a secure and effective privacy protection mechanism to protect network information security and user privacy. In authentication schemes, users should ensure that their identity information is not leaked when they request authentication from the server. At the same time, they should also ensure the confidentiality, integrity, timeliness and non-repudiation of the message. This is a difficult and hot topic in the field of wireless body area network research. This paper introduces the characteristics and security requirements of wireless body area network before The main work is as follows: (1) An anonymous aggregation authentication scheme for multi-user in wireless body area networks is proposed. A new WBAN system model is designed for the application of wireless body area networks in homes for the aged, which can simultaneously protect multiple wireless body area networks. The scheme not only realizes the authentication between the remote server and the user, but also protects the user's identity privacy, achieves anonymity, and establishes session keys between the two sides of the communication. By using the aggregate signature technology, the authentication overhead of the remote server is effectively reduced and the communication generation is greatly reduced. Price. The scheme does not use bilinear mapping and no pairing operation. The security analysis and complexity comparison show that the scheme is not only secure and reliable, but also has low computational and communication overhead. (2) A secure anonymous authentication scheme for wireless body area network is proposed. All-trusted security hardware is deployed at the gateway of the remote server, only the pre-loaded program is executed, and no one can modify it. By introducing the aggregation signature technology, the security hardware aggregates the user signature with the valid signatures of other virtual users, so that the remote server can only verify the aggregated signature and realize the user. Anonymity. Using aggregate signature technology to achieve anonymity, users do not need to maintain the pseudonym pool, thus effectively reducing the user's storage costs and computational overhead, thus improving the authentication efficiency. Users use their own private key and the remote server's public key to sign the request message, making the remote server verify the validity of the signature. It is necessary to use the corresponding private key, that is, only the designated remote server can verify the signature, which enhances the security of the system.
【學(xué)位授予單位】:安徽大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TN92
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