A new certificateless aggregate signature scheme

  • Authors:
  • Lei Zhang;Futai Zhang

  • Affiliations:
  • College of Mathematics and Computer Science, Nanjing Normal University, No. 122, Ninghai Road, Nanjing, Jiangsu 210097, China and Department of Computer Engineering and Mathematics, Universitat Ro ...;College of Mathematics and Computer Science, Nanjing Normal University, No. 122, Ninghai Road, Nanjing, Jiangsu 210097, China

  • Venue:
  • Computer Communications
  • Year:
  • 2009

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Abstract

Aggregate signatures are useful in special areas where the signatures on many different messages generated by many different users need to be compressed. In this paper, we study aggregate signatures in certificateless public key settings. We first present the notion and security model of certificateless aggregate signature schemes. Then we give an efficient certificateless aggregate signature scheme. Our scheme is existentially unforgeable under adaptive chosen-message attacks assuming the computational Diffie-Hellman problem is hard.