RT Journal Article
A1 Dong Yang
A1 Wen-Feng Qi
A1 Hua-Jin Chen

PB iet
T1 Observations on the truncated differential of SP block ciphers and their applications to mCrypton and CRYPTON V1.0
JN IET Information Security
VO 12
IS 5
SP 419
OP 424
AB Truncated differential attack (TDA) proposed by Knudsen in Fast Software Encryption 1995 (FSE'95) has been widely used in the analysis of block ciphers. In this study, the authors specifically study the security of SP block ciphers against TDA. In FSE'15, Li et al. introduced a meet-in-the-middle technique to construct truncated differential for Feistel ciphers. They first apply Li's technique to SP block ciphers and get some further results. Second, they introduce the concept of generalised truncated difference to control the diffusion of active S-boxes in the truncated differential. On the basis of these, two 5-round truncated differential distinguishers for mCrypton and CRYPTON V1.0 have been constructed. Using these two 5-round distinguishers, they present the first 8-round DA on mCrypton-64 and improve the former best TDA on CRYPTON V1.0 by one round.
K1 mCrypton
K1 truncated differential distinguishers
K1 TDA
K1 generalised truncated difference
K1 meet-in-the-middle technique
K1 truncated differential attack
K1 Li's technique
K1 CRYPTON V1.0
K1 FSE
K1 Fast Software Encryption 1995
K1 Feistel ciphers
K1 SP block ciphers
DO https://doi.org/10.1049/iet-ifs.2017.0196
UL https://digital-library.theiet.org/;jsessionid=2aa3wg9mc60ec.x-iet-live-01content/journals/10.1049/iet-ifs.2017.0196
LA English
SN 1751-8709
YR 2018
OL EN