International Association for Cryptologic Research (IACR)
Abstract
In this paper we focus on the PRINCE block cipher reduced to 6 rounds, with two known plaintext/ciphertext pairs. We develop two attacks on 6-round PRINCE based on accelerated exhaustive search, one with negligible memory usage and one having moderate memory requirements. The time complexities for the two attacks are 296.78 and 288.85, respectively. The memory consumption of the second attack is less than 200MB and so is not a restricting factor in a real-world setting