International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Hongjun Wu

Publications

Year
Venue
Title
2018
TOSC
Distinguishing Attack on NORX Permutation
Tao Huang Hongjun Wu
NORX is a permutation-based authentication scheme which is currently a third-round candidate of the ongoing CAESAR competition. The security bound of NORX is derived from the sponge construction applied to an ideal underlying permutation. In this paper, we show that the NORX core permutation is non-ideal with a new distinguishing attack. More specifically, we can distinguish NORX64 permutation with 248.5 queries and distinguish NORX32 permutation with 264.7 queries using carefully crafted differential-linear attacks. We have experimentally verified the distinguishing attack on NORX64 permutation. Although the distinguishing attacks reveal the weakness of the NORX permutation, it does not directly threat the security of the NORX authenticated encryption scheme.
2015
FSE
2013
ASIACRYPT
2012
ASIACRYPT
2007
CHES
2007
EUROCRYPT
2007
FSE
2006
FSE
2006
FSE
2004
FSE
2001
PKC
2001
PKC
1998
ASIACRYPT
1998
ASIACRYPT

Program Committees

Asiacrypt 2015
Asiacrypt 2013
Asiacrypt 2012
Asiacrypt 2010