Re: how many bits of entropy do we need for load balancing?

[Jay Hennigan <jay () west net>]

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