Method for lightweight security synchronization in smart sensor network

A smart sensor, lightweight technology, applied in the field of communication, can solve the problems of high energy consumption, time synchronization method does not fully support communication protocols, large number of exchanges, etc.

Inactive Publication Date: 2016-01-13
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, RBS has certain requirements on the network, and at the same time it has a large number of exchanges. When the node is large, it will cause quite high energy consumption
The ISO / IEC / IEEE21541 standard provides information and communication models for sensor access networks, and the existing time synchronization methods do not fully support the communication protocols specified in the ISO / IEC / IEEE21541 standard, so they cannot be applied to ISO / IEC / IEEE21451 standard

Method used

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  • Method for lightweight security synchronization in smart sensor network
  • Method for lightweight security synchronization in smart sensor network
  • Method for lightweight security synchronization in smart sensor network

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Embodiment

[0062] This embodiment provides a lightweight security synchronization method in an ISO / IEC / IEEE21451 smart sensor network, including the following steps:

[0063] Step S1, authentication phase:

[0064] The sensor and the application will broadcast authentication messages between the two, and the form of the broadcast message is as follows, {U ID , K N ,ExpT,SIG SK [h(U ID / / ExpT / / K N )]}, where U ID Indicates the ID of the node, K N Represents the key of the node, ExpT represents the deadline for dynamic adjustment, h(...) is the hash value of the above three information obtained through a hash function, SIG Sk [...] represents a signature obtained by a private key.

[0065] The details of the certification phase are as follows, such as figure 1 . First, the application generates the U ID 、K N , ExpT, SIG i And broadcast the authentication message, the sensor node will verify the validity of the signature of the application node and the identity of the applicatio...

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Abstract

The invention provides a method for lightweight security synchronization in a smart sensor network. The method comprises the following steps of step S1 an authentication stage, namely broadcasting an authentication message between a sensor node and an application program; step 2 a timestamp transfer stage, namely transferring timestamp information through a lightweight encryption algorithm to guarantee communication security; and step S3 a time synchronization stage, namely considering pulse propagation time delay of the authentication stage and the timestamp transfer stage to carry out time synchronization adjustment. The method can be applied to ISO (International Standardization Organization) / IEC (International Electrotechnical Commission) / IEEE (Institute of Electrical and Electronic Engineers) 21451; security needs in a synchronization mechanism are fully met, the security is improved, and some false and invalid information can be discarded in a transmission process; the security performance of time synchronization is only improved at the cost of fine delay, and meanwhile, the method can be applied to a sensor network of ISO / IEC / IEEE 21451.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a lightweight security synchronization method in an ISO / IEC / IEEE21451 intelligent sensor network. Background technique [0002] With the rapid development of communication technology, embedded technology and sensor technology, sensor network has been applied to many fields. However, the diversity of sensor network communication protocols and standards greatly limits the heterogeneous integration and healthy development of sensor networks. The establishment of the ISO / IEC / IEEE21451 standard enables sensors based on different communication protocols to exchange information with each other. As a distributed system integrating a large number of heterogeneous sensor nodes, the sensor network specified in the ISO / IEC / IEEE21451 standard controls and interacts through timely physical changes. As the supporting technology of sensor network, time synchronization plays a key role in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04L29/06
Inventor 伍军郭龙华黄丽娜李建华银鹰刘雨辰李京伟
Owner SHANGHAI JIAO TONG UNIV
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