Runtime and Worker Hardening

[voronaam]

• Assess and mitigate side-channel (timing) attacks on the runtime. Our tensorized approach mitigates this to a significant extent, but we should engage additional expertise on the topic.
• Implement cryptographic approval of jobs/computations (to verify public keys/identities and prevent unwanted computations to run)

Ben: It is a little vague what we actually want to do here. We know CPP usually has to restart their worker at the beginning of working sessions but not much more. In the absence of having strong deliverables I would suggest we timebox this to a few days and do whatever we can to make the workers more resilient.

Original Clickup: https://app.clickup.com/t/f90mp2