Data safe transmission method in body area network system

Abstract

The invention provides a data safe transmission method in a body area network system. The data safe transmission method in the body area network system comprises the following steps: according to the level structure deploy body area network system, and symmetric keys are prearranged in cluster heads and base stations, and symmetric keys are prearranged in concentrators and the cluster heads; the body area network system is initialized; each concentrator collects data and transmits the data to the cluster heads; and the data are sent to the base stations by the cluster heads, and are decrypted, stored, analyzed and processed through the base stations. The body area network structure is delaminated, simplicity and expansibility of network deploy are improved, and the data safe transmission method is beneficial for network life circles and energy control. The data safe transmission method not only can guarantee data privacy of users, but also can ensure network user context privacy, and prevent corresponding relations between two communication sides from being broken. In addition, information receivers are not limited, and therefore medical workers or relatives of patients can all conveniently and fast search disease information of patient information, the data safe transmission method accords with actual using requirements of a body area network.

Description

technical field [0001] The invention belongs to the technical field of sensors, relates to a body area network information encryption and safe transmission technology in a medical system, and in particular relates to a data safe transmission method in a body area network system. Background technique [0002] As a branch of sensor network, body area network is an important public application network. There are huge application requirements in the field of electronic medical services, especially telemedicine, monitoring of special populations, and community medical care. The body area network is a network composed of some tiny sensors with communication capabilities attached to the human body and a body area network concentrator. Each small sensor can be deployed on the human body or implanted inside the human body. The body area network concentrator is a device that performs network management and relay functions between the body area network and the external public network....

AI Technical Summary

Problems solved by technology

If the user's requirements for data security and confidentiality, reliable transmission and location confidentiality cannot be met, the application and development of electronic medical care and related services will be greatly hindered

Since the development and research of sensor perception and information transmission processing technology is still in its infancy, the current data transmission method directly applied to the data transmission process of the body area network will lead to the following problems: (1) The open nature of the wireless channel makes the body area network Domain NetEase is monitored, which makes the corresponding relationship between the data sender and the data receiver in the network easily exposed. Malicious attackers can easily infer some user attribute data based on some existing background information, which leads to user privacy without deciphering the transmission message. Give way

However, this is not suitable for body area networks with relatively short transmission paths and relatively fixed event sources.

(3) Many event monitoring sensor networks are homogeneous network architectures, and messages need to be forwarded multiple times in the network to reach the destination, which makes the data transmission path easy to detect and the data to be monitored more easily

And too many times of forwarding increases the time delay of data arrival

[0005] At present, there is a data transmission protection method based on an asymmetric encryption method and a message broadcast mechanism. Although this method can achieve privacy protection and the security of communication relationships cannot be cracked, but due to the excessive calculation consumption of the asymmetric encryption method, it is difficult for the sensor. Excessive storage and computing consumption is unfavorable to the network life cycle, and a large number of complex encryption calculations cause excessive delays in the transmission of physiological data information

In addition, the broadcast-based method requires a large number of information receivers, which is not in line with the situation where there are many patients and relatively few medical staff; and it is required to map the relationship between the two parties in the early stage of network deployment and broadcast messages continuously , so this is not very applicable to the actual situation where medical staff and patients' family members need to log in to view information in real time

Images