Titlebook: Advances in Cryptology - ASIACRYPT 2003; 9th International Co Chi-Sung Laih Conference proceedings 2003 Springer-Verlag Berlin Heidelberg 2

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Ulrike Boehmer PhD,Ronit Elk PhDn multisets (or sets). They map multisets of arbitrary finite size to strings (hashes) of fixed length. They are incremental in that, when new members are added to the multiset, the hash can be updated in time proportional to the change. The functions may be . in that it is difficult to find two mul

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https://doi.org/10.1007/978-3-319-15057-4s key length expansion than Sarkar’s construction which is the previously best known complete binary tree based construction. But only disadvantage is that here we need more key length expansion than that of Shoup’s sequential algorithm. But it is not too large as in all practical situations we need

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Ulrike Boehmer PhD,Ronit Elk PhDs provide the basis for strong authentication protocols. In this paper we present the first group signature scheme with constant-size parameters that does not require any group member, including group managers, to know trapdoor secrets. This novel type of group signature scheme allows public paramet

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Environmental Science and Technology Librarywed as a digital signature with certain extra properties. Notably, anyone can verify that a signature is generated by a legitimate group member, while the actual signer can only be identified (and linked) by a designated entity called a group manager. Currently, the most efficient group signature sc

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Cancer as an Environmental Diseasedations, using the methodology of provable security. A security proof [15] in the random oracle model, along the lines of [2], appeared in support for ESIGN. However, several unexpected difficulties were found. Firstly, it was observed in [20], that the proof from [15] holds in a more restricted mod