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We propose a new aggregate signature scheme from bilinear pairings. It requires constant pairing operations in the verification and the size of aggregate signature is independent of the number of signers. In the public key infrastructure (PKI) setting, it is the first aggregate signature scheme with these properties. Hence, it is very practical in the environments with computational power limited...
Remote user authentication is suited to solve the privacy and security problems for the single server architecture environment. With the rapid development of Internet service, more and more network architectures are used in multi-server environments. In this paper, a user authentication scheme for multi-server environment is presented. The proposed scheme is based on bilinear pairings. Moreover, it...
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