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We present the first selectively secure hierarchical identity-based non-interactive key agreement (HIB-NIKA) in the standard model that does not explicitly require multilinear maps. We give a novel solution for resilience called "shadowing factor" to improve the security of HIB-NIKA and present a practical attack model of hierarchical key agreement to analyze the anti-forgery and anti-collusion...
End-to-end communication usually adopts a single path to transmit interactive packets in traditional routing mechanisms, so attackers can easily snoop into the whole communication trace to analyze users' typical features and to predict users' next-behaviors, which can severely decrease the security of users' information. Thus, this paper puts forward a multi-path based link-state routing mechanism,...
IPSec is a protocol commonly used in Internet, and in fact it has been the standard for secure communication in Internet-based communications. Therefore, it is very important to design and implement the IPSec protocol in network systems. However, in challenged networks, it is challenging to implement practical IPSec protocols. In this paper, we propose VCI, a framework to implement IPSec over Challenged...
Botnets have become a serious threat to Internet and are often deployed to control a large pool of zombies and perform notorious activities such as DDoS, information theft and spam sending. In this paper, a new method is developed for detecting IRC botnets by analyzing the characteristic of packet size sequence of the TCP conversation between IRC zombies and their command and control (C&C) servers...
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