On 16/10/2024 14:00, Danilo Godec via bind-users wrote:

Hi Danilo,

I've been doing some more reading into DNSSEC and if I understand correctly, it is allowed to have multiple DS records for one KSK - with different digest types. Apparently, SHA-1 is deprecated and shouldn't be used anymore, while SHA-256 is mandatory and has to exist.

That is correct.

That leaves SHA-384, which is optional and I can generate manually with 'dnssec-dsfromkey'. Since I have to ask my registrar to add DS records to parent zones (.eu in this case), I can just send them both records, right?

You can, but it doesn't really enhance the security, and only increases the response size of queries for your DS records. A single SHA-256 DS hash is sufficient.

Regards,
Anand
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