Research on Security Communication Protocol of Power Internet of Things

doi:10.3969/j.issn.1671-1122.2021.09.002

Abstract

Abstract:

In order to comprehensively improve the security comprehensive defense capability of power Internet of Things (IoT) and solve the lack of security protection, terminal authentication mechanism of power IoT terminal, this paper proposed a secure communication protocol based on IBC (Identity-based Cryptography) system based on the fingerprint and SM9 algorithm, the terminal identity authentication was completed by using the terminal unique identification mark instead of the traditional digital certificate. It was applied to the data encryption transmission of the power IoT terminal. Finally, the security analysis of the protocol was carried out, and the comparison was made with the traditional power communication access protocol. The results show that the protocol can effectively prevent various network attacks, save computing and network resources, and effectively solve the security access problems of mass power IoT terminals.

Key words: power Internet of Things, SM9, identity authentication, secure access, key agreement

CLC Number:

TP309

WU Kehe, CHENG Rui, ZHENG Bihuang, CUI Wenchao. Research on Security Communication Protocol of Power Internet of Things[J]. Netinfo Security, 2021, 21(9): 8-15.

Figures/Tables 10

References 16

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名称	说明
类型	密钥协商类型
子类型	密钥协商第一步
长度	数据总长度
版本号	版本号
SN	客户端随机分配的序列号
SIM卡号	SIM卡卡号
设备ID	终端唯一ID号（芯片ID）
Enc(R₁ \|\|TIME₁, ID_gw)	随机数和时间戳的密文
Sign(Hash(REQ₁), SK_client)	本端私钥签名

名称	说明
类型	密钥协商类型
子类型	密钥协商第一步
长度	数据总长度
版本号	版本号
SN+1	序列号
Enc(R₂ \|\|TIME₂, ID_client)	对端ID加密随机数和时间戳
Sign(SM3(REQ₂), SK_gw)	本端私钥签名

名称	说明
类型	密钥协商类型
子类型	密钥协商第一步
长度	数据总长度
版本号	版本号
SN+2	序列号
TIME₃	本地时间戳
SM3(R₁^R₂)	哈希值

名称	说明
类型	密文通信
子类型	无
长度	总长度
IV	随机IV
TIME	当前时间戳
密文数据	加密报文
签名值	对报文进行哈希运算之后的签名值