TY - JOUR
T1 - Distinguishing attack on CPB-based cipher COSB-128
AU - Phuc, Tran Song Dat
AU - Lee, Changhoon
N1 - Publisher Copyright:
© 2016 SERSC.
PY - 2016
Y1 - 2016
N2 - COSB-128 is a type of fast controllable permutation block (CPB), which is designed to ensure a high speed of data transformation and high stability to differential analysis. In this paper, we present the possibility to distinguish between a 10-round COSB-128 and a 128-bit random permutation through a full 10-round related-key difference characteristic by proposing a distinguishing attack with high probability on this cipher. This attack is another result from previous study of related-key attack on COSB-128 [2]. From that point, it reveals the potential to extend to the related-key recovery attack on this algorithm in the future.
AB - COSB-128 is a type of fast controllable permutation block (CPB), which is designed to ensure a high speed of data transformation and high stability to differential analysis. In this paper, we present the possibility to distinguish between a 10-round COSB-128 and a 128-bit random permutation through a full 10-round related-key difference characteristic by proposing a distinguishing attack with high probability on this cipher. This attack is another result from previous study of related-key attack on COSB-128 [2]. From that point, it reveals the potential to extend to the related-key recovery attack on this algorithm in the future.
KW - Controllable operational substitution block (COSB)
KW - Controllable permutation block (CPB)
KW - Cryptanalysis
KW - Distinguishing Attack
UR - http://www.scopus.com/inward/record.url?scp=84956853750&partnerID=8YFLogxK
U2 - 10.14257/ijsia.2016.10.1.32
DO - 10.14257/ijsia.2016.10.1.32
M3 - Article
AN - SCOPUS:84956853750
SN - 1738-9976
VL - 10
SP - 355
EP - 360
JO - International Journal of Security and its Applications
JF - International Journal of Security and its Applications
IS - 1
ER -