Description

Hi team, we would like to use cosign, but our internal registry requires client certificates to authenticate the client, which cosign does not currently support. This means we are unable to push signatures to our registry.

We have made a change that adds the needed parameters to the cosign cli in much the same way as is already available for the TSA server. We would like to upstream the change, but according to the contribution guidelines, we need to first create an issue in the project before creating a pull request.
The proposed change can be seen here: main...uber-fork:cosign:support-mtls