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Paper 2006/377
Efficient Chosen-Ciphertext Secure Identity-Based Encryption with Wildcards
James Birkett, Alexander W. Dent, Gregory Neven and 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 PS
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Will appear in ACISP 2007, volume 4586 of Lecture Notes in Computer Science, pages 274--292, 2007.
- Contact author(s)
- a dent @ rhul ac uk
- History
- 2007-05-16: last of 2 revisions
- 2006-11-03: received
- See all versions
- Short URL
- https://ia.cr/2006/377
- License
-
CC BY