Adding optional signing of cache data

[leandrodesouzadev]

@theorangeone

but if an attacker has got to your cache server you’re probably fairly hosed anyway.

I agree on this one. I was trying to write a comment for this idea but couldn’t get a good example setup.

@theorangeone

Perhaps the best API would be to make the serializer pluggable?

This is really valuable, DRF does this really well for authentication, permissions, etc.