Titlebook: Cryptography and Coding; 10th IMA Internation Nigel P. Smart Conference proceedings 2005 Springer-Verlag Berlin Heidelberg 2005 Signcryptio

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Alessandro Visintin,Mauro Contiplications, but their importance may increase if ever a practical quantum computer was built. We discuss issues related to both their implementation and their security. As far as we are aware this is the first complete treatment of practical implementations of hash based signature schemes in the lit

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Manel BenSassi,Maher Abbes,Faten Atiguiology of Cramer and Shoup combined with a secure signature scheme..We describe an instantiation of our construction that provides all the functionality of a signature scheme and of an encryption scheme. This instantiation is more efficient than similar constructions proposed to-date.

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Alessandro Visintin,Mauro Conti undeniable signature schemes. There appears to be no formal security modelling for NIDV undeniable signatures or for NIDV proofs in general. Indeed, recent work by Wang has shown the original NIDV undeniable signature scheme of Jakobsson . to be flawed. We argue that NIDV proofs may have applicatio

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Ghada Ben Abdennour,Karim Gasmi,Ridha Ejbalightness of its security reduction is investigated in detail. Our new on-line single-key AIL-MAC construction, the PDI-construction, transforms any FIL-MAC into an AIL-MAC and is superior to all previous AIL-MAC constructions given in the literature (taking the tradeoff into account). It appears obvi

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