Abstract
To effectively perceive network security situation under IOT environment, an Immunity-based IOT Environment Security Situation Awareness (IIESSA) model is proposed. In IIESSA, some formal definitions for self, non-self, antigen and detector are given. According to the relationship between the antibody-concentration of memory detectors and the intensity of network attack activities, the security situation evaluation method under IOT environment based on artificial immune system is presented. And then according to the situation time series obtained by the mentioned evaluation method, the security situation prediction method based on grey prediction theory is presented for forecasting the intensity and security situation of network attack activities that the IOT environment will be suffered in next step. The experimental results show that IIESSA provides a novel and effective model for perceiving security situation of IOT environment.
Highlights
Internet of Things (IOT) is a heterogeneous network that consists of the conventional Internet and the edge networks, and it is connected by many different resource constrained devices/nodes using IP protocol [1]
According to the situation time series obtained by the mentioned evaluation method, the security situation prediction method based on grey prediction theory is presented for forecasting the intensity and security situation of network attack activities that the IOT environment will be suffered in step
To evaluate and predict network security situation of different network attack intensities given by Figure 2, Figure 3 shows the curves of attack intensity, situation evaluation and situation prediction for Spoof attacks that WWW service of device/node suffered, respectively
Summary
Internet of Things (IOT) is a heterogeneous network that consists of the conventional Internet and the edge networks, and it is connected by many different resource constrained devices/nodes using IP protocol [1]. Sun and Wang [6] proposed the security hierarchy structure of IOT, which consists of the sensation layer, the network layer and the application layer They analyzed different security problems and corresponding security requirements in different layers of IOT. Some security policies of the conventional Internet, such as Firewall and Intrusion Detection System (IDS), are unsuitable to protect resource constrained devices of IOT because these policies need higher storage space and time cost in devices/nodes of IOT. According to the dynamism of IOT environment and the illegal attacks from external and internal 6LoWPAN network, an immunity-based IOT environment security situation awareness model (IIESSA) is proposed to protect the security of resource constrained devices/nodes under IOT environment
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