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The Internet of Things (IoTs) is an emerging concept referring to networked everyday objects that interconnect to each other via wireless sensors attached to them. TESLA is a source authentication protocol for the broadcast network. Scalability of TESLA is limited by distribution of its unicast-based initial parameter. Low energy consumption version of TESLA is μTESLA, which is designed for wireless...
In order to exterminate a botnet, we have to trace a botnet and arrest its botmaster. In this paper, we make a model of communication pattern of a C&C server that sends/receives packets to/from the botmaster. Then we discuss how botmaster trace back can be achieved. We describe which communication patterns we should focus on to find the botmaster or upper C&C servers. Furthermore, we propose...
Recently, one of threats on the increasing network includes DoS(Denial of Service) attacks. A large amount of packets is transmitted to a server that becomes a target of DoS attacks. Therefore, a packet filtering that intercepts the communication of a doubtful packet is researched. We investigate two packet filtering methods. In the history based filtering, it looks for IP addresses that frequently...
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