International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Paper: New identity based signcryption schemes from pairings

Authors:
Benoît Libert
Jean-Jacques Quisquater
Download:
URL: http://eprint.iacr.org/2003/023
Search ePrint
Search Google
Abstract: We present a new identity based scheme based on pairings over elliptic curves. It combines the functionalities of signature and encryption and is provably secure in the random oracle model. We compare it with Malone-Lee's one from security and efficiency points of view. We give a formal proof of semantical security under the Decisional Bilinear Diffie-Hellman assumption for this new scheme and we show how to devise other provably secure schemes that produce even shorter ciphertexts.
BibTeX
@misc{eprint-2003-11741,
  title={New identity based signcryption schemes from pairings},
  booktitle={IACR Eprint archive},
  keywords={Public key cryptography/ Identity based cryptosystems, pairings, signcryption schemes},
  url={http://eprint.iacr.org/2003/023},
  note={accepted at IEEE ITW 2003 libert@dice.ucl.ac.be 12107 received 4 Feb 2003, last revised 24 Feb 2003},
  author={Benoît Libert and Jean-Jacques Quisquater},
  year=2003
}