> Hash functions compress large amounts of data into a small message digest. My ... | Hacker News

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		dingo_bat on Feb 24, 2017 \| parent \| context \| favorite \| on: Announcing the first SHA-1 collision > Hash functions compress large amounts of data into a small message digest. My understanding of crypto concepts is very limited, but isn't this inaccurate? Hash functions do not compress anything. They have an image too which says "<big number> SHA-1 compressions performed". Seems weird to see basic mistakes in a research disclosure.

kevinnk on Feb 24, 2017 [–]

https://en.m.wikipedia.org/wiki/One-way_compression_function

Cryptographic compression is not related to data compression.

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