体测设备物联网数据安全传输机制的设计与实现

Design and implementation of data security transmission mechanism for physical exam equipment IoT

针对体育考场物联网建设中体测设备节点接入物联网认证困难、数据传输中易被篡改等问题,为提高体测设备数据安全性,提出体育考试物联网架构,并结合节点算力有限的特点设计一种体测设备物联网数据安全传输机制。该机制基于RSA数字签名建立双向身份认证机制,防止非法设备接入;基于AES加密算法将数据加密成密文传输,提高数据安全性。以跳绳体测设备为例,采用自主设计的低功耗、低成本跳绳成绩采集终端,测试该机制的各项性能。实验结果表明,终端设备完成一次身份认证仅需5.19 s,加/解密每秒可达1031次,硬件资源消耗均小于60%,满足体育考试物联网场景实际需求。

In the construction of physical examination room based on the Internet of Things(IoT),the physical examination equipment nodes have authentication difficulties when accessing the IoT,and the data is easily tampered during transmission.To improve the data security of physical examination equipment,an IoT architecture for physical examination was proposed.Considering the limited computing power of nodes,a security transmission mechanism for IoT data of physical examination equipment was designed.To prevent unauthorized device access,a two-way identity authentication mechanism based on Rivest-Shamir-Adleman(RSA)digital signatures was established.The data was encrypted into ciphertext for transmission which improved data security based on the Advanced Encryption Standard(AES)encryption algorithm.Taking the skipping rope physical examination equipment as an example,a self-designed skipping rope score collection terminal with low-power and low-cost was used to test the performance of the mechanism.Experimental results show that the terminal device needs only 5.2 s to complete an identity authentication,and the encryption and decryption can reach 1031 times per second.The hardware resource consumption is less than 60%,which meets the actual needs of the physical exam IoT scene.