Re: MD5 is slow

[Thomas Bellman via NANOG <nanog () lists nanog org>]

On 2025-09-11 09:23, Vasilenko Eduard via NANOG wrote:

> SHA-2 and SHA-3 are used not only for networking, they are general.
> Hence, they were developed to be slow enough to prevent brute force
> for some other applications.

Since you are asserting that the hash functions must be "slow" in
order to resist brute force attacks, could you perhaps give us an
estimate of *how* slow they must be?  And how you arrive at that
(e.g. how much resources does the attacker deploy, and how long
walltime do you give the attacker)?


        /Bellman

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