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We show how the Fiat-Shamir transform can be used to convert three-move identification protocols into two-tier signature schemes (a primitive we define) with a proof of security that makes a standard assumption on the hash function rather than modeling it as a random oracle. The result requires security of the starting protocol against concurrent attacks.(More)
Although several genes for mental retardation and epilepsy, including double cortex/X-linked lissencephaly (DC/XLIS), have been localized to Xq21.3-q23, there has been no complete physical map of this region available. We constructed a YAC/STS contig map by initiating two yeast artificial chromosome (YAC) walks from the markers that flanked the DC/XLIS(More)
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