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Privacy is considered as one of the hottest issues in nowadays communication research areas. It focuses on protecting the content of the transmitted data and on preserving the contextual information such as the identity of the communicating entities. This paper presents an overview of research done in this area in order to build a foundation that helps the research community to understand more the...
Deep packet filtering (DPF) has been demonstrated as an essential technique for effective fine-grained access controls, but it is commonly recognized that the technique may invade the individual privacy of the users. Secure computation can address the tradeoff between privacy and DPF functionality, but the current solutions limit the scalability of the network due to the intensive computation overheads...
While encrypting communication can hide the content of the transaction, the attacker still can invade the users' privacy by flow analysis. Anonymous communication technology is an important method to protect users' privacy. By hiding the participators' identities, or the linkability between sender and receiver, anonymous communication system can guard users' privacy against invasion. The study of...
With the growth of decentralized network users, preserving privacy becomes a critical issue in this open community. Kad-based network, as a typical decentralized system, has been widely used nowadays. However, there is not enough research to achieve anonymity on it. In this paper, we propose an anonymous protocol based on Kad network, named Anonymous Kad (A-Kad), which achieves complete privacy and...
Motivated by applications in cryptography, we consider a generalization of randomness extraction and the related notion of privacy amplification to the case of two correlated sources. We introduce the notion of correlation extractors, which extract nearly perfect independent instances of a given joint distribution from imperfect, or "leaky," instances of the same distribution. More concretely,...
In secure message transmission (SMT) protocol a sender S can send a message m to a receiver R in a dasiaprivatepsila and dasiareliablepsila way. S and R are connected by n channels where at most t of them can be fully controlled by an adaptive adversary with unlimited computational power. In this paper, noting the similarity between the privacy goal of SMT and an encryption function, we introduce...
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