2009/10/12 by Marine Minier, Minier, Marine, Benjamin Pousse +1
Computer Science · #Chaos-based Image/Signal Encryption #Coding theory and cryptography #Cryptographic Implementations and Security #cs.CR
paper · pdf · doi:10.48550/arxiv.0910.2153
arxiv created 2009/10/12 · arxiv updated 2009/12/01
This report presents new four-round integral properties against the Rijndael cipher with block sizes larger than 128 bits. Using higher-order multiset distinguishers and other well-known extensions of those properties, the deduced attacks reach up to 7 and 8 rounds of Rijndael variants with 160 up to 256-bit blocks. For example, a 7-rounds attack against Rijndael-224 has a time complexity equal to 280.