Comment on Enhanced DNA and ElGamal cryptosystem for secure data storage and retrieval in cloud

Chenglian Liu; Sonia Chien-I Chen

Paper 2023/1440

Comment on Enhanced DNA and ElGamal cryptosystem for secure data storage and retrieval in cloud

Chenglian Liu

, Software Engineering Institute of Guangzhou

Sonia Chien-I Chen

, Qingdao University

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.
Keywords: ElGamal Cryptosystem Forgery Attack Jamming Attack Redundancy
Contact author(s): 897599247 @ qq com
drsoniachen @ qdu edu cn
History: 2023-09-24: approved; 2023-09-21: received; See all versions
Short URL: https://ia.cr/2023/1440
License: CC BY-NC-ND

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},
      note = {\url{https://eprint.iacr.org/2023/1440}},
      url = {https://eprint.iacr.org/2023/1440}
}