International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Rainer Steinwandt

Publications

Year
Venue
Title
2018
TCHES
Extending Glitch-Free Multiparty Protocols to Resist Fault Injection Attacks
Side channel analysis and fault attacks are two powerful methods to analyze and break cryptographic implementations. At CHES 2011, Roche and Prouff applied secure multiparty computation to prevent side-channel attacks. While multiparty computation is known to be fault-resistant as well, the particular scheme used for side-channel protection does not currently offer this feature. This work introduces a new secure multiparty circuit to prevent both fault injection attacks and sidechannel analysis. The new scheme extends the Roche and Prouff scheme to make faults detectable. Arithmetic operations have been redesigned to propagate fault information until a new secrecy-preserving fault detection can be performed. A new recombination operation ensures randomization of the output in the case of a fault, ensuring that nothing can be learned from the faulty output. The security of the new scheme is proved in the ISW probing model, using the reformulated t-SNI security notion. Besides the new scheme and its security proof, we also present an extensive performance analysis, including a proof-of-concept, software-based AES implementation featuring the masking technique to resist both fault and side-channel attacks at the same time. The performance analysis for different security levels are given for the ARM-M0+ MCU with its memory requirements. A comprehensive leakage analysis shows that a careful implementation of the scheme achieves the expected security level.
2011
JOFC
2007
EUROCRYPT
2007
TCC
2005
CHES
2005
TCC
2003
CHES
2003
PKC
2003
PKC
2001
PKC
2001
PKC
2000
CRYPTO

Program Committees

PKC 2020
Asiacrypt 2017
Asiacrypt 2016
PKC 2015
PKC 2012
Eurocrypt 2009
CHES 2009
PKC 2008
Crypto 2007