A Leakage-Resilient Zero Knowledge Proof for Lattice Problem

  • Yang Liu
  • Hongda Li
  • Qihua Niu
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7672)


Leakage-resilient cryptographic protocols have recently been evolving intensively, studying the question of designing protocol that maintain security even in the presence of side-channel attacks. Under leakage assumption(the verifier uses side-channel attacks to obtain some information about the secret state of the prover), the known zero knowledge protocol may not preserve zero knowledge any more. Garg first studied leakage-resilient zero knowledge and presented an excellent construction for NP. Unfortunately, the definition is not suitable for honest verifier leakage-resilient zero knowledge. In this paper, we give a new definition of leakage-resilient zero knowledge and construct a leakage-resilient zero knowledge proof for approximate version of the closest vector problem(\(\textsc{G}_{\textsc{AP}}\textsc{CVP}_\gamma\)). We also give a definition of leakage-resilient bit commitment scheme.


leakage-resilient zero knowledge proof lattice commitment 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Yang Liu
    • 1
  • Hongda Li
    • 1
  • Qihua Niu
    • 1
  1. 1.State Key Laboratory of Information Security Institute of Information EngineeringChinese Academy of SciencesBeijingChina

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