15 Dec
2020
15 Dec
'20
6:51 p.m.
On 12/14/20 16:25, nanog@jack.fr.eu.org wrote:
There are 3 kind of hashing algorithm
Four if you count the trails followed by runners drinking beer. See on-on for instance.
The first one is used to check the sanity of input, against bit-swapping error for instance See CRC for instance
The second one is used for cryptographic purposes While the output distribution is supposed to be quite good, its most important aspect lies here: it is hard to craft an input matching a specific hash See sha256 for instance
The last one combines both speed and output distribution See xxhash for instance
-- Jay Hennigan - jay@west.net Network Engineering - CCIE #7880 503 897-8550 - WB6RDV