Paper 2004/362 Original: eprint.iacr.org/2004/362 ↗
A new security proof for Damgård's ElGamal
Abstract
We provide a new security proof for a variant of ElGamal proposed by Damgård, showing that it is secure against non-adaptive chosen ciphertext. Unlike previous security proofs for this cryptosystem, which rely on somewhat problematic assumptions, our computational problem is similar to accepted problems such the Gap and Decision Diffie-Hellman problems.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2005-03-17: last updated
- 2004-12-20: published
- Short URL
- https://ia.cr/2004/362
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2004/362,
author = {Kristian Gjøsteen},
title = {A new security proof for Damgård's ElGamal},
howpublished = {Cryptology {ePrint} Archive, Paper 2004/362},
year = {2004},
url = {https://eprint.iacr.org/2004/362}
}