R. Chung-Wei Phan has presented a complementation slide attack on full Skipjack block cipher [1]. He claimed that the full 32 rounds of Skipjack was broken by a complementation slide attack with 2^32.5 known texts and 2^44 encryptions. In this paper, we show that his cryptanalysis method can not offer any information of subkeys in Skipjack.
목차
Abstract I. Phan’s Cryptanalysis on Skipjack II. Phan’s cryptanalysis was wrong III. Conclusion References