Verifiably encrypted signature scheme without random oracles

  • Authors:
  • M. Choudary Gorantla;Ashutosh Saxena

  • Affiliations:
  • Institute for Development and Research in Banking Technology, Hyderabad, Andhra Pradesh, India;Institute for Development and Research in Banking Technology, Hyderabad, Andhra Pradesh, India

  • Venue:
  • ICDCIT'05 Proceedings of the Second international conference on Distributed Computing and Internet Technology
  • Year:
  • 2005

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Abstract

Verifiably encrypted signature is a useful mechanism for fair exchange especially, for online contract signing. In this paper, we propose a verifiably encrypted signature scheme using bilinear pairings. The scheme is secure against existential forgery under chosen message attack and extraction, without random oracles.