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Cryptanalytic Performance Appraisal of Improved CCH2 Proxy Multisignature Scheme

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  • Raman Kumar
  • Nonika Singla

Abstract

Many of the signature schemes are proposed in which the out of threshold schemes are deployed, but they still lack the property of security. In this paper, we have discussed implementation of improved CCH1 and improved CCH2 proxy multisignature scheme based on elliptic curve cryptosystem. We have represented time complexity, space complexity, and computational overhead of improved CCH1 and CCH2 proxy multisignature schemes. We have presented cryptanalysis of improved CCH2 proxy multisignature scheme and showed that improved CCH2 scheme suffered from various attacks, that is, forgery attack and framing attack.

Suggested Citation

  • Raman Kumar & Nonika Singla, 2014. "Cryptanalytic Performance Appraisal of Improved CCH2 Proxy Multisignature Scheme," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-13, April.
    • Handle: RePEc:hin:jnlmpe:429271
    DOI: 10.1155/2014/429271
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