Paper 2023/1440 Original: eprint.iacr.org/2023/1440 ↗
Comment on Enhanced DNA and ElGamal cryptosystem for secure data storage and retrieval in cloud
Abstract
Thangavel and Varalakshmi proposed an enhanced DNA and ElGamal cryptosystem for secure data storage and retrieval in cloud. They modified ElGamal algorithm which it calls enhanced ElGamal cryptosystem. We prove that their enhanced ElGamal scheme, which does not require two random numbers by data owner. Although the attacker is unable to find out what message the data owner gave to the data user. However, the attackers can still confuse the issue of sending messages to data users. On the other hand, this scheme can not against insider attack, therefore it is insecure.
Metadata
- Available format(s)
PDF- Category
- Attacks and cryptanalysis
- Publication info
- Preprint.
- History
- 2023-09-21: last updated
- 2023-09-21: published
- Short URL
- https://ia.cr/2023/1440
- License
- https://creativecommons.org/licenses/by-nc-nd/4.0/
BibTeX
@misc{cryptoeprint:2023/1440,
author = {Chenglian Liu and Sonia Chien-I Chen},
title = {Comment on Enhanced DNA and ElGamal cryptosystem for secure data storage and retrieval in cloud},
howpublished = {Cryptology {ePrint} Archive, Paper 2023/1440},
year = {2023},
url = {https://eprint.iacr.org/2023/1440}
}