Paper 2008/487

Secure Certificateless Public Key Encryption without Redundancy

Yinxia Sun and Futai Zhang

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.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Published elsewhere. Unknown where it was published
Keywords
certificateless public key encryptionredundancyshort ciphertextbilinear pairingrandom oracle.
Contact author(s)
bela_suno @ 163 com
History
2009-03-24: last of 2 revisions
2008-11-21: received
See all versions
Short URL
https://ia.cr/2008/487
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2008/487,
      author = {Yinxia Sun and Futai Zhang},
      title = {Secure Certificateless Public Key Encryption without Redundancy},
      howpublished = {Cryptology {ePrint} Archive, Paper 2008/487},
      year = {2008},
      url = {https://eprint.iacr.org/2008/487}
}
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