...
- FF-A compatible OPTEE (at least one SPM can exist in pre 8.4 arm architectures
- PKCS#11 API's
- SCMI server
- OPTEE TAs
- FIDO onboarding agent
- Linaro non-repudiable logger (proof of concept)
- WideVine DRM
- Microsoft PlayReady DRM
- micropayments
- infrastructure services
- trust features