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Redactable Signatures for Independent Removal of Structure and Content

  • Kai Samelin
  • Henrich C. Pöhls
  • Arne Bilzhause
  • Joachim Posegga
  • Hermann de Meer
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7232)

Abstract

In this paper, we present a provably secure redactable signature scheme allowing to independently redact structure and content. We identify the problems when structure is not separated from content, resulting in an attack on the scheme proposed at VLDB ’08 by Kundu and Bertino. The attack allows for changing the semantic meaning of a given tree. We introduce a rigid security model, including consecutive redaction control, to formalize the required behaviour of our scheme. Moreover, we present first performance evaluations of our implementation to demonstrate the practical use of the presented scheme.

Keywords

Structural Integrity Redactable Signatures Performance XML 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Kai Samelin
    • 1
  • Henrich C. Pöhls
    • 1
  • Arne Bilzhause
    • 1
  • Joachim Posegga
    • 1
  • Hermann de Meer
    • 1
  1. 1.Institute of IT-Security and Security-Law (ISL)University of PassauGermany

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