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Paper 2016/656
Improving Practical UC-Secure Commitments based on the DDH Assumption
Eiichiro Fujisaki
Abstract
At Eurocrypt 2011, Lindell presented practical static and adaptively UC-secure commitment schemes based on the DDH assumption. Later, Blazy {\etal} (at ACNS 2013) improved the efficiency of the Lindell's commitment schemes. In this paper, we present static and adaptively UC-secure commitment schemes based on the same assumption and further improve the communication and computational complexity, as well as the size of the common reference string.
Note: This is an extended abstract of the paper with the same title that appears in SCN 2016.
Metadata
- Available format(s)
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Minor revision. SCN 2016
- Keywords
- universally composable commitmentsadaptive securityand public-key cryptography
- Contact author(s)
- eiichiro fujisaki @ gmail com
- History
- 2016-06-28: received
- Short URL
- https://ia.cr/2016/656
- License
-
CC BY