Paper 2001/032
Efficient and Non-Interactive Non-Malleable Commitment
Giovanni Di Crescenzo, Jonathan Katz, Rafail Ostrovsky, and Adam Smith
Abstract
We present new constructions of non-malleable commitment schemes, in the public parameter model (where a trusted party makes parameters available to all parties), based on the discrete logarithm or RSA assumptions. The main features of our schemes are: they achieve near-optimal communication for arbitrarily-large messages and are non-interactive. Previous schemes either required (several rounds of) interaction or focused on achieving non-malleable commitment based on general assumptions and were thus efficient only when committing to a single bit. Although our main constructions are for the case of perfectly-hiding commitment, we also present a communication-efficient, non-interactive commitment scheme (based on general assumptions) that is perfectly binding.
Note: Revised to indicate that this is an extended version of what will appear at Eurocrypt 2001.
Metadata
- Available format(s)
-
PDF
PS
- Category
- Foundations
- Publication info
- Published elsewhere. Eurocrypt 2001
- Keywords
- non-malleablemalleabilitycommitment
- Contact author(s)
- jkatz @ cs columbia edu
- History
- 2001-04-27: received
- Short URL
- https://ia.cr/2001/032
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2001/032,
author = {Giovanni Di Crescenzo and Jonathan Katz and Rafail Ostrovsky and Adam Smith},
title = {Efficient and Non-Interactive Non-Malleable Commitment},
howpublished = {Cryptology {ePrint} Archive, Paper 2001/032},
year = {2001},
url = {https://eprint.iacr.org/2001/032}
}
