Netinfo Security ›› 2018, Vol. 18 ›› Issue (10): 1-9.doi: 10.3969/j.issn.1671-1122.2018.10.001

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Certificateless Parallel Key-insulated Signature for Industrial Internet of Things

Yanan CHEN1,2, Qian MEI3(), Hu XIONG3, Weixiang XU1   

  1. 1. School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China
    2. Teaching Department of Basic Course, Jiangxi University of Science and Technology, Nanchang Jiangxi 330013, China
    3. School of Information and Software Engineering, University of Electronic Science and Technology of China, Chengdu Sichuan 610054, China
  • Received:2018-07-26 Online:2018-10-10 Published:2020-05-11

Abstract:

With the rapid development of the industrial Internet of things, an urgent problem is to keep the user’s private key during the signing process from being leaked in an insecure cloud environment. To reduce the danger of the private key leakage, the key-insulated mechanism has been introduced. In addition, certificateless signature scheme is proposed to solve the complex certificate management process and key escrow problem. This paper incorporates the key-insulated mechanism and certificateless signature to obtain a certificateless parallel key-insulated signature, which we give the definition and security model of the new system. Two introduced helpers in our scheme can alternately help user update the temporary private keys, which can enhance the security of the system. Besides, the security of the scheme is proved in the random oracle model, which satisfies all the properties of the key-insulated security.

Key words: industrial Internet of things, cloud environment, parallel key-insulated, certificateless signature, random oracle model

CLC Number: