International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Secure Certificateless Public Key Encryption without Redundancy

Authors:
Yinxia Sun
Futai Zhang
Download:
URL: http://eprint.iacr.org/2008/487
Search ePrint
Search Google
Abstract: Certificateless public key cryptography was introduced to solve the key escrow problem in identity based cryptography while enjoying the most attractive {\em certificateless} property. In this paper, we present the first {\em secure} certificateless public key encryption (CLPKE) scheme {\em without redundancy}. Our construction provides optimal bandwidth and a quite efficient decryption process among all the existing CLPKE schemes. It is provably secure against adaptive chosen ciphertext attacks in the random oracle model under a slightly stronger assumption.
BibTeX
@misc{eprint-2008-18087,
  title={Secure Certificateless Public Key Encryption without Redundancy},
  booktitle={IACR Eprint archive},
  keywords={public-key cryptography / certificateless public key encryption, redundancy, short ciphertext, bilinear pairing, random oracle.},
  url={http://eprint.iacr.org/2008/487},
  note={ bela_suno@163.com 14206 received 20 Nov 2008, last revised 22 Nov 2008},
  author={Yinxia Sun and Futai Zhang},
  year=2008
}