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A New Proxy Identity-Based Signcryption Scheme for Partial Delegation of Signing Rights

Authors:
Hassan Elkamchouchi
Yasmine Abouelseoud
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URL: http://eprint.iacr.org/2008/041
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Abstract: In this paper, a new identity-based proxy signcryption scheme is presented. The proposed scheme allows partial delegation of signing rights. Consequently, a signature created by the proxy signer is distinguishable from that created by the principal signer. This level of security is a common requirement in many applications to prevent malicious proxy agents from impersonating the principal signer. Moreover, the scheme is based on bilinear pairings over elliptic curves and thus smaller key sizes are required compared to schemes not utilizing elliptic curves. A revocation protocol of dishonest agents is given together with a renewal procedure for the proxies of honest agents. Finally, an application scenario for the proposed scheme is presented.
BibTeX
@misc{eprint-2008-17718,
  title={A New Proxy Identity-Based Signcryption Scheme for Partial Delegation of Signing Rights},
  booktitle={IACR Eprint archive},
  keywords={public-key cryptography / identity-based cryptosystems, proxy signcryption, network security},
  url={http://eprint.iacr.org/2008/041},
  note={submitted to International Journal of Information Technology yasmine.abouelseoud@gmail.com 13904 received 25 Jan 2008},
  author={Hassan Elkamchouchi and Yasmine Abouelseoud},
  year=2008
}