On Searching Linear Transformations for the Register R of MICKEY-Family Ciphers
Lin Wang, Ying Gao, Zhou Yu, Xiaoni Du · IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences · 2018
MICKEY-family ciphers are lightweight cryptographic primitives and include a register R determined by two related maximal-period linear transformations. Provided that primitivity is efficiently decided in finite fields, it is shown by quantitative analysis that potential parameters for R can be found in probabilistic polynomial time.