Credential Protection as defined in section 24 of the TPM specification revision 2 part 1 See: https://trustedcomputinggroup.org/resource/tpm-library-specification/ Returned primitives are of type TPM2B_ID_OBJECT and TPM2B_ENCRYPTED_SECRET.

Alpha is a limited availability test for releases before they are cleared for widespread use.

Beta is the point at which we are ready to open a release for any customer to use.

Deprecated features are scheduled to be shut down and removed.

Early Access features are limited to a closed group of testers.

GA features are open to all developers and are considered stable and fully qualified for production use.

Do not use this default value.

One of IDevID or LDevID is mandatory for IdentityChallenge to succeed DevID keys can be either signing or decrypt With GlobalSign + Compulab, we use decrypt keys, but other vendors like Dell may be using signing keys instead, so api should allow both.

The launch stage as defined by [Google Cloud Platform Launch Stages](http://cloud.google.com/terms/launch-stages).