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strimzi / strimzi-kafka-operator

Apache Kafka® running on Kubernetes
https://strimzi.io/
Apache License 2.0
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[Enhancement]: Add ECDSA KEY_PAIR_ALGORITHM and SIGNATURE_ALGORITHM for use elliptic curve #9372

Open lenglet-k opened 10 months ago

lenglet-k commented 10 months ago

Related problem

My need

I have security needs that require the use of an ECDSA certificate allowing key exchange based on an elliptic curve algorithm.

The problem

I have used my own ECDSA CA but the servers and users keys stil in RSA keypair format because it's hardcoded here: https://github.com/strimzi/strimzi-kafka-operator/blob/main/systemtest/src/main/java/io/strimzi/systemtest/security/SystemTestCertAndKeyBuilder.java#L65

Suggested solution

Solution

One solution would be to allow the end user to manage via the kafka crds the algorithms used to generate servers and users certificates.

This solutions must permit to set theses options:

So the end user can use RSA jeypair or ECDSA, the default value will be RSA.

Alternatives

No response

Additional context

No response

scholzj commented 10 months ago

Discussed on the community call on 30.11.2023: Seems like a reasonable feature. But we should have a proposal to clarify how it will be configured and how will it work. Would you be interested in contributing this @lenglet-k? It does not look like something anyone from the core team will work on anytime soon.

lenglet-k commented 10 months ago

Hello, Why not, but I've never done java, so I don't know if I'll be able to produce something quickly.

scholzj commented 10 months ago

@lenglet-k You do not have to do it if you don't want to. I can understand it especially if you have never done Java. We can also wait until someone from the core team finds time or someone else wants to implement it. I basically just wanted to handle the expectations and clarify it.

steffen-karlsson commented 5 months ago

I've created a proposal for solution that the community can discuss: https://github.com/strimzi/proposals/pull/119 If needed, I can also help with implementation when its decided.

@lenglet-k if you can, please check if it makes sense for your scenario as well.

lenglet-k commented 5 months ago

@steffen-karlsson it looks good to me