I'm researching encryption tools that use OS-verified hardware such as a TPM or Secure Element.
Given that FairPlay only works on iOS and certain Mac hardware, I suspect there is some interaction between the FairPlay AV Foundation and the Secure Element
When the SPC is given to the server, what cryptographically verifiable information is disclosed from the client to the server?
Does the SPC message interact with the Secure Element? In what ways (symmetric, asymmetric, etc)?