Randomness of the PRINCE block cipher

This paper presents the statistical test performed on the lightweight block cipher PRINCE. PRINCE is a 64-bit block cipher with a 128-bit key which was proposed in Asiacrypt 2012. The statistical tests were performed using NIST statistical test suite. We performed the tests on different rounds of PRINCE to determine the number of rounds that exhibit randomness. Results show that the output of PRINCE appear random after only six (out of the full 12) rounds.