Research On Security Technology For Smart Home Sensing Information

With the rapid development of smart home,various smart sensing devices in the smart home system have increased exponentially.In this state,its sensing information also shows explosive growth.However,in the smart home system,due to the diversity and openness of smart sensing device interfaces,the sensing information in the system may face attacks such as man-in-the-middle attacks,replay attacks,and counterfeit attacks.It also appears powerless to resist these attacks.Therefore,in the smart home system,how to safely store and access control the smart sensing information has become an urgent problem to be solved.In order to solve the above problems,this paper researches the security technology of smart home sensing information.Its main research contents are as follows:(1)Research on the safe storage mechanism of smart home sensing information.Through this research,a secure storage mechanism for smart home sensing information is proposed.This mechanism mainly saves the sensing information in the distributed cloud storage nodes,and saves the message summary of the sensing information in the blockchain nodes,and then saves the corresponding relationship between the cloud storage nodes and the blockchain nodes in the sensing information management machine.When the user reads the data,the identity authentication is first completed on the induction information management machine,and the induction information is obtained through the key,and finally the data verification is completed on the blockchain node.The main advantages of this mechanism are:(1)Use blockchain to store smart home sensing information,and use chain storage to reduce storage costs,thereby enhancing the scalability of blockchain storage.(2)The mechanism uses a new type of hash chain to transmit induction information,thereby improving the security of transmission.The security analysis and experimental results show that the mechanism can effectively resist various attacks and has strong fault tolerance.(2)Research on the access control strategy of smart home sensing information.Through this research,an access control strategy for smart home sensing information is proposed.This strategy uses the user’s identity information as a seed value to construct a hash chain,and uses the hash chain as the proof of work of the blockchain.In this way,users who hold the key can quickly complete the proof of work and complete access,while illegal intruders who do not hold the key cannot calculate the proof of work of the next block based on the existing block,so they cannot access the smart household.The security analysis shows that this strategy can resist many kinds of attacks and has high security.The efficiency analysis also shows that the amount of calculation required by this strategy is relatively small,and only a small amount of hash value calculation is required.Therefore,this strategy can be applied to smart home systems with low computing power.To sum up: this paper studies the security technology of smart home sensing information,and proposes a safe storage mechanism for smart home sensing information and an access control strategy for smart home sensing information.This mechanism and strategy not only requires less computational overhead,but also can resist a variety of security attacks,which has high theoretical value and wide application direction.