02027nas a2200229   4500000000100000000000100001008004100002260001200043653002300055653002500078653001300103653002700116653002400143100001500167700001700182245009400199856008000293300001000373490000600383520139400389022001401783       2022                            d  c09/202210aInternet of things10aHidden Markov Models10aSecurity10aSupport Vector Machine10aIntrusion Detection1 aXudong Zhu1 aHonggao Deng00aA Security Situation Awareness Approach for IoT Software Chain Based on Markov Game Model  uhttps://www.ijimai.org/journal/sites/default/files/2022-08/ijimai_7_5_7.pdf  a59-650 v73 aSince Internet of Things (IoT) has been widely used in our daily life nowadays, it is regarded as a promising and popular application of the Internet, and has attracted more and more attention. However, IoT is also suffered by some security problems which seriously affect the implementation of IoT system. Similar to traditional software, IoT software is always threated by many vulnerabilities, thus how to evaluate the security situation of IoT software chain becomes a basic requirement. In this paper, A framework of security situation awareness for IoT software chain is proposed, which mainly includes two processes: IoT security situation classification based on support vector machine and security situation awareness based on Markov game model. The proposed method firstly constructs a classification model using support vector machine (IoT) to automatically evaluates the security situation of IoT software chain. Based on the situation classification, we further proposed to adopt Markov model to simulate and predict the next behaviors of participants that involved in IoT system. Additionally, we have designed and developed a security situation awareness system for IoT software chain, the developed system supports the detection of typical IoT vulnerabilities and inherits more than 20 vulnerability detection methods, which shows great potential in IoT system protection.   a1989-1660