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A Framework for Universally Composable Non-committing Blind Signatures

  • Masayuki Abe
  • Miyako Ohkubo
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5912)

Abstract

A universally composable (UC) blind signature functionality demands users to commit to the message to be blindly signed. It is thereby impossible to realize in the plain model. We show that even non-committing variants of UC blind signature functionality remain not realizable in the plain model. We then characterize adaptively secure UC non-committing blind signatures in the common reference string model by presenting equivalent stand-alone security notions. We also present a generic construction based on conceptually simple Fischlin’s blind signature scheme.

Keywords

Signature Scheme Proof System Blind Signature Honest User Adaptive Adversary 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Masayuki Abe
    • 1
  • Miyako Ohkubo
    • 1
  1. 1.Information Sharing Platform LaboratoriesNTT CorporationJapan

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