When you think about cloud security — and who doesn’t these days? — chip-level security is probably not even on your radar.
It will provide such essential security properties as Identity; hardware security compartmentalization; and verification of all mutable firmware ownership
Another reason for this was that edge computing business models, and cloud confidentiality demanded higher levels of security, interoperability, and transparency.
Be that as it may, it seems clear already that with both Google and Microsoft behind it, Caliptra will be an important substratum to foundational cloud security.