Efficient Chosen-Ciphertext Secure Identity-Based Encryption with Wildcards

James Birkett; Alexander W.  Dent; Gregory Neven; Jacob Schuldt

Paper 2006/377 Original: eprint.iacr.org/2006/377 ↗

Efficient Chosen-Ciphertext Secure Identity-Based Encryption with Wildcards

James Birkett

Alexander W. Dent

Gregory Neven

Jacob Schuldt

Abstract

We propose new instantiations of chosen-ciphertext secure identity-based encryption schemes with wildcards (WIBE). Our schemes outperform all existing alternatives in terms of efficiency as well as security. We achieve these results by extending the hybrid encryption (KEM--DEM) framework to the case of WIBE schemes. We propose and prove secure one generic construction in the random oracle model, and one direct construction in the standard model.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint.
History: 2007-05-16: last updated; 2006-11-03: published
Short URL: https://ia.cr/2006/377
License: https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2006/377,
      author = {James Birkett and Alexander W.  Dent and Gregory Neven and Jacob Schuldt},
      title = {Efficient Chosen-Ciphertext Secure Identity-Based Encryption with Wildcards},
      howpublished = {Cryptology {ePrint} Archive, Paper 2006/377},
      year = {2006},
      url = {https://eprint.iacr.org/2006/377}
}