Error correctable efficient quantum homomorphic encryption using Calderbank-Shor-Steane codes

Fuente: arXiv
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Auteurs principaux: Sohn, IlKwon, Kim, Boseon, Bae, Kwangil, Lee, Wonhyuk
Format: Preprint
Publié: 2024
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author Sohn, IlKwon
Kim, Boseon
Bae, Kwangil
Lee, Wonhyuk
author_facet Sohn, IlKwon
Kim, Boseon
Bae, Kwangil
Lee, Wonhyuk
contents The integration of quantum error correction codes and homomorphic encryption schemes is essential for achieving fault-tolerant secure cloud quantum computing. However, owing to the significant overheads associated with these schemes, their efficiency is paramount. In this study, we develop an efficient quantum homomorphic encryption scheme based on quantum error correction codes that uses a single encoding process to simultaneously perform encryption and encoding. By using a longer quantum error correction code, both the security and error-correction capabilities of the scheme are improved. Through comprehensive evaluations, we demonstrate that the proposed scheme is more secure than the conventional permutation-key-based QHE scheme when the number of maximally mixed states is not more than twice the length of the quantum error-correction code. The proposed scheme offers a more secure and efficient approach to quantum cloud computing, potentially paving the way for more practical and scalable quantum cryptographic protocols.
format Preprint
id arxiv_https___arxiv_org_abs_2401_08059
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Error correctable efficient quantum homomorphic encryption using Calderbank-Shor-Steane codes
Sohn, IlKwon
Kim, Boseon
Bae, Kwangil
Lee, Wonhyuk
Quantum Physics
The integration of quantum error correction codes and homomorphic encryption schemes is essential for achieving fault-tolerant secure cloud quantum computing. However, owing to the significant overheads associated with these schemes, their efficiency is paramount. In this study, we develop an efficient quantum homomorphic encryption scheme based on quantum error correction codes that uses a single encoding process to simultaneously perform encryption and encoding. By using a longer quantum error correction code, both the security and error-correction capabilities of the scheme are improved. Through comprehensive evaluations, we demonstrate that the proposed scheme is more secure than the conventional permutation-key-based QHE scheme when the number of maximally mixed states is not more than twice the length of the quantum error-correction code. The proposed scheme offers a more secure and efficient approach to quantum cloud computing, potentially paving the way for more practical and scalable quantum cryptographic protocols.
title Error correctable efficient quantum homomorphic encryption using Calderbank-Shor-Steane codes
topic Quantum Physics
url https://arxiv.org/abs/2401.08059