Differential Collisions in SHA-0
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Searching for Messages Conforming to Arbitrary Sets of Conditions in SHA-256
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Collisions of SHA-0 and reduced SHA-1
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Breaking a new hash function design strategy called SMASH
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SAC'05 Proceedings of the 12th international conference on Selected Areas in Cryptography
Boomerang distinguisher for the SIMD-512 compression function
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Cryptanalysis of round-reduced HAS-160
ICISC'11 Proceedings of the 14th international conference on Information Security and Cryptology
FSE'07 Proceedings of the 14th international conference on Fast Software Encryption
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We report on the experiments we performed in order to assess the security of SHA-1 against the attack by Chabaud and Joux [5]. We present some ideas for optimizations of the attack and some properties of the message expansion routine. Finally, we show that for a reduced version of SHA-1, with 53 rounds instead of 80, it is possible to find collisions in less than 280 operations.