ed25519 key support

[svenstaro]

Proposal

Nomad currently can't use ed25519 keys: client setup failed: Unsupported signature algorithm ed25519.PrivateKey; RSA and ECDSA only are supported.

I think it'd be great if Nomad could read these keys.

Use-cases

It's not such a well supported algorithm but security of it seems pretty good so why not?

Attempted Solutions

Well, at least ECDSA works.

[tgross]

Hi @svenstaro! It looks like we don't have support for that in Consul TLS either, so it's probably worth us looking at the set of cipher suites we support for TLS in general. I'm going to ping @picatz for his expertise and mark this for roadmapping.

[svenstaro]

Of course, support for this algorithm would be appreciated in Consul as well.

[quentin9696]

Hi !

Any updates on this feature request?
We would love to get rid of large RSA certs in favor of ED25519