One Digit Checksum for Data Integrity Verification of Cloud-executed Homomorphic Encryption Operations

Mostefa Kara; Abdelkader Laouid; Omer Al dabbas; Mohammad Hammoudeh; Ahcène Bounceur

Paper 2023/231

One Digit Checksum for Data Integrity Verification of Cloud-executed Homomorphic Encryption Operations

Mostefa Kara, LIAP Laboratory, University of El Oued, PO Box 789, El Oued 39000, El Oued, Algeria

Abdelkader Laouid, LIAP Laboratory, University of El Oued, PO Box 789, El Oued 39000, El Oued, Algeria

Omer Al dabbas, Faculty of Engineering Technology, Al-Balqa’ Applied University, Amman 15008, Jordan

Mohammad Hammoudeh, Information & Computer Science Department, King Fahd University of Petroleum and Minerals, Academic Belt Road, 31261, Dhahran, Saudi Arabia

Ahcène Bounceur, Lab-STICC UMR CNRS, University of Western Brittany UBO, Brest 6285, France

Abstract

Homomorphic Encryption~(HE) is used in many fields including information storage, data protection, privacy preservation, blockchain, and authentication. HE allows an untrusted third party to perform algebraic operations on encrypted data. Protecting the results of HE against accidental or malicious tampering attacks is still an open research challenge. In this paper, we introduce a lightweight technique that allows a data owner to verify the integrity of HE results performed in the cloud. The proposed method is quick, simple, and applicable, as it depends on adding a single digit to the encrypted message before storing it in the cloud. This digit represents verification proof and it is later used to ensure a verifiable HE. Our technique can be integrated with any HE scheme that uses encryption with non-isolated plaintext.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Preprint.
Keywords: Data Integrity Verifiable FHE Homomorphic Encryption Cloud Computing
Contact author(s): karamostefa @ univ-eloued dz
abdelkader-laouid @ univ-eloued dz
o aldabbas @ bau edu jo
mohammad hammoudeh @ kfupm edu sa
Ahcene Bounceur @ univ-brest fr
History: 2023-02-21: approved; 2023-02-20: received; See all versions
Short URL: https://ia.cr/2023/231
License: CC BY

BibTeX

@misc{cryptoeprint:2023/231,
      author = {Mostefa Kara and Abdelkader Laouid and Omer Al dabbas and Mohammad Hammoudeh and Ahcène Bounceur},
      title = {One Digit Checksum for Data Integrity Verification of Cloud-executed Homomorphic Encryption Operations},
      howpublished = {Cryptology ePrint Archive, Paper 2023/231},
      year = {2023},
      note = {\url{https://eprint.iacr.org/2023/231}},
      url = {https://eprint.iacr.org/2023/231}
}