Paper 2008/368 Original: eprint.iacr.org/2008/368 ↗
Side Channel Attack Resistant Implementation of Multi-Power RSA using Hensel Lifting
Abstract
Multi-Power RSA [1] is a fast variant of RSA [2] with a small decryption time, making it attractive for implementation on lightweight cryptographic devices such as smart cards. Hensel Lifting is a key component in the implementation of fast Multi-Power RSA Decryption. However, it is found that a naive implementation of this algorithm is vulnerable to a host of side channel attacks, some of them powerful enough to entirely break the cryptosystem by providing a factorisation of the public modulus $N$. We propose here a secure (under reasonable assumptions) implementation of the Hensel Lifting algorithm. We then use this algorithm to obtain a secure implementation of Multi-Power RSA Decryption.
Metadata
- Available format(s)
PDF- Category
- Implementation
- Publication info
- Preprint.
- History
- 2008-08-27: last updated
- 2008-08-27: published
- Short URL
- https://ia.cr/2008/368
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2008/368,
author = {Varad Kirtane and C. Pandu Rangan},
title = {Side Channel Attack Resistant Implementation of Multi-Power RSA using Hensel Lifting},
howpublished = {Cryptology {ePrint} Archive, Paper 2008/368},
year = {2008},
url = {https://eprint.iacr.org/2008/368}
}