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Localization based on premeasured WiFi fingerprints is a popular method for indoor localization where satellite based positioning systems are unavailable. In these systems, privacy of the users' locat...
Homomorphic encryption methods provide a way to outsource computations to the cloud while protecting the confidentiality of the data. In order to deal with the large and growing data sets that are ...
The problem of generating an RSA composite in a distributed manner without leaking its factorization is particularly challenging and useful in many cryptographic protocols. Our first contribution is t...
We propose a variant of the Paillier cryptosystem that improves efficiency in encryption, re-encryption and decryption while preserving the homomorphic property. We then use this variant to construc...
分析P. Paillier等提出的公钥概率加密体制的安全性,证明它的单向性与几类问题的等价关系,进一步证明了在不降低安全性的前提下,可以通过选取适当的参数,提高体制的效率,减少通信量,在此基础上给出改进的加密体制,加密和解密的效率比以往的体制有了很大的提高。

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