Paper 2011/628
Maximum Leakage Resilient IBE and IPE
Kaoru Kurosawa and Le Trieu Phong
Abstract
In this paper, we show the first identity-based encryption (IBE) scheme, and inner product encryption (IPE) scheme, both of which achieve the maximum possible leakage rate $1-o(1)$ in the standard model under a static assumption. Specifically, under the DLIN assumption, even if $1-o(1)$ fraction of each private key is arbitrarily leaked, the IBE scheme is fully secure and the IPE scheme is selectively secure. (To our knowledge, no {\it leakage resilient} IPE scheme has been known so far.)
Note: Add new SXDH-based schemes, and some testing implementation.
Metadata
- Available format(s)
-
PDF
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Unknown status
- Keywords
- Identity-based encryptioninner product encryptionleakage resilienceDLIN assumption
- Contact author(s)
- letrieu letrieuphong @ gmail com
- History
- 2014-02-21: last of 8 revisions
- 2011-11-21: received
- See all versions
- Short URL
- https://ia.cr/2011/628
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2011/628,
author = {Kaoru Kurosawa and Le Trieu Phong},
title = {Maximum Leakage Resilient {IBE} and {IPE}},
howpublished = {Cryptology {ePrint} Archive, Paper 2011/628},
year = {2011},
url = {https://eprint.iacr.org/2011/628}
}