构建基于微证书的物联网密码认证系统

针对物联网环境中传感节点运算能力弱，存储空间有限的特点，本文研究和设计了基于微证书的物联网密码认证系统，通过使用微证书技术来提高系统的认证，数据完整性验征以及加解密数据的速度和安全性。基丁微证书的密码认证系统，主要采用组合对称密钥技术和安全芯片技术，实现微证书的一次一变的动态特征以及硬件芯片的安全存储，町以满足夫规模的感知设备认证、签名以及加解密等物联网安全需求，提高物联网的安全性能。

Building the Micro-Certificate based Cryptographic System for Internet of Things

In the environment of Internet of Things（loT）, the computing ability of sensors is weak and the storage space is limit.This paper study and design the authentication cryptography system for loT based on the micro-certificate. This System improves the speed and security for authentication, completeness verification and encryption/decryption by using micro-certificate technology.The micro-certificate cryptography authentication system mainly use the combined symmetric key technology and security chip technology to realize the dynamic characteristic of one-time-one-variant micro-certificate and secure storage of hardware chip. This system can meet the security need of large scale sensor devices authentication,signature and encryption/decryption etc,and improve the secure performance for loT.