Faster Key Recovery Attack on Round-Reduced PRINCE

详细信息    查看全文

• 关键词：PRINCE ; Lightweight ; Block cipher ; Key recovery attack ; Integral ; Higher ; order differential
• 刊名：Lecture Notes in Computer Science
• 出版年：2017
• 出版时间：2017
• 年：2017
• 卷：10098
• 期：1
• 页码：3-17
• 丛书名：Lightweight Cryptography for Security and Privacy
• ISBN：978-3-319-55714-4
• 卷排序：10098

文摘

We introduce a new technique for doing the key recovery part of an integral or higher order differential attack. This technique speeds up the key recovery phase significantly and can be applied to any block cipher with S-boxes. We show several properties of this technique, then apply it to PRINCE and report on the improvements in complexity from earlier integral and higher order differential attacks on this cipher. Our attacks on 4 and 6 rounds were the fastest and the winner of PRINCE Challenge’s last round in the category of chosen plaintext attack.