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内容説明 This book constitutes the refereed proceedings of the First International Conference on Provable Security， ProvSec 2007， held in Wollongong， Australia， October 31 - November 2， 2007. The 10 revised full papers presented together with 7 short papers were carefully reviewed and selected from 51 submissions. The papers are organized in topical sections on Authentication， Asymmetric Encryption， Signature， Protocol and Proving Technique， Authentication and Symmetric Encryption， Signature and Asymmetric Encryption.