What is it about?
Use the classical boomerang attack on round-reduced BLAKE and BLAKE2 hash functions. It is surprising to find that the elimination of the round constants in BLAKE2 increase its secure margin against the boomerang attack.
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Why is it important?
BLAKE is one of the 5 finalist of the SHA-3 competition. It is also an international standard used worldwide. Therefore, it is important to evaluate its security against all kinds of attacks including the boomerang attack.
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This page is a summary of: The Boomerang Attacks on BLAKE and BLAKE2, January 2015, Springer Science + Business Media,
DOI: 10.1007/978-3-319-16745-9_16.
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