Rotational cryptanalysis

Rotational cryptanalysis is a specific type of cryptanalytic technique used to analyze and potentially break cryptographic algorithms, particularly block ciphers. The technique is based on the observation that certain operations within the cipher may have predictable behaviors when inputs are rotated or shifted in specific ways. In rotational cryptanalysis, the idea is often to manipulate the input to the cryptographic function by rotating its bits—this means rearranging the bits in a cyclic manner—and then observing how these changes affect the output.