Paper 2021/589
White-Box Encryption Scheme Using a Quantum Memory
Hidenori Kuwakado, Shoichi Hirose, and Masahiro Mambo
Abstract
White-box cryptography is often used in embedded applications. Although white-box cryptography with provable security has been proposed recently, the circuit size is much larger than that of usual block ciphers. We address this problem in a different way from previous works. In particular, we propose a white-box symmetric cipher using quantum memory. The size of our cipher is a polynomial in input-length and output-length of an underlying function. The security against classical attacks is reduced to the security of the underlying classical pseudo-random function. We show that quantum attacks using the generalized Grover algorithm to our cipher are ineffective.
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Preprint. MINOR revision.
- Keywords
- white-box cryptographyquantum memoryGrover's algorithmsymmetric cipher
- Contact author(s)
- kuwakado @ kansai-u ac jp
- History
- 2021-05-10: received
- Short URL
- https://ia.cr/2021/589
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2021/589,
author = {Hidenori Kuwakado and Shoichi Hirose and Masahiro Mambo},
title = {White-Box Encryption Scheme Using a Quantum Memory},
howpublished = {Cryptology {ePrint} Archive, Paper 2021/589},
year = {2021},
url = {https://eprint.iacr.org/2021/589}
}
