Is your feature request related to a problem? Please describe.
We've been looking at a strategy where we set keys on different repos. The difficulty with implementing this is requiring our users to sign their deb packages with different keys. If a user wants to publish their package to 10 repos then they would potentially have to juggle 10 keys. Ideally, we'd like pulp_deb to sign deb packages for the user.

Describe the solution you'd like
We'd like a solution similar to the one in RPM which would allow users to sign packages for repos when uploading them.