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Collisions and other Non-Random Properties for Step-Reduced SHA-256
SHA-256 SHA-512 hash functions collisions
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2009/6/3
We study the security of step-reduced but otherwise unmodified
SHA-256. We show the first collision attacks on SHA-256 reduced
to 23 and 24 steps with complexities 218 and 228.5, respectively. We gi...
Analysis of Step-Reduced SHA-256
Step-Reduced SHA-256 Boolean function SHA-256
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2009/6/3
This is the first article analyzing the security of SHA-256
against fast collision search which considers the recent attacks by Wang
et al.We show the limits of applying techniques known so far to S...