Full Round Distinguishing and Key-Recovery Attacks on SAND-2 (Full version)

ePrint Report: Full Round Distinguishing and Key-Recovery Attacks on SAND-2 (Full version)

Zhuolong Zhang, Shiyao Chen, Wei Wang, Meiqin Wang

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 …

64-bit attacks block chen cipher eprint report key recovery report size version wang wei