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Five Rounds are Sufficient and Necessary for the Indifferentiability of Iterated Even-Mansour
block cipher ideal cipher iterated Even-Mansour
2017/2/20
We prove that the 5-round iterated Even-Mansour (IEM) construction (which captures the high-level structure of the class of key-alternating ciphers) with a non-idealized key-schedule (such as the triv...
Differential Attack on Five Rounds of the SC2000 Block Cipher
Block cipher SC2000 Differential cryptanalysis
2010/11/26
The SC2000 block cipher has a 128-bit block size and a user key of 128, 192 or 256 bits, which employs a total of 6.5 rounds if a 128-bit user key is used. It is a CRYPTREC recommended e-government ci...
Truncated differential cryptanalysis of five rounds of Salsa20
Truncated differential cryptanalysis five rounds Salsa20
2009/3/11
We present an attack on Salsa20 reduced to five of its twenty rounds.
This attack uses many clusters of truncated differentials and requires 2165
work and 26 plaintexts.