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Possible spell-corrected query: and-2
2023/1697 (PDF) Last updated: 2023-11-02
Full Round Distinguishing and Key-Recovery Attacks on SAND-2 (Full version)
Zhuolong Zhang, Shiyao Chen, Wei Wang, Meiqin Wang
Attacks and cryptanalysis

This paper presents full round distinguishing and key recovery attacks on lightweight block cipher SAND-2 with 64-bit block size and 128-bit key size, which appears to be a mixture of the AND-Rotation-XOR (AND-RX) based ciphers SAND and ANT. However, the security arguments against linear and some other attacks are not fully provided. In this paper, we find that the combination of a SAND-like nibble-based round function and ANT-like bit-based permutations will cause dependencies and lead to...

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