* Response: Return ciphered/deciphered value @end.

* Request: Ask device to encrypt or decrypt value of given key @start @next CipheredKeyValue @next Failure.

* Request: Ask device to commit to CoSi signing @start @next CosiCommitment @next Failure.

* Response: Contains a CoSi commitment @end.

* Request: Ask device to sign using CoSi @start @next CosiSignature @next Failure.

* Response: Contains a CoSi signature @end.

* Response: Device provides ECDH session key @end.

* Request: Ask device to generate ECDH session key @start @next ECDHSessionKey @next Failure.

* Structure representing identity data @embed.

* Response: Device provides signed identity @end.

* Request: Ask device to sign identity @start @next SignedIdentity @next Failure.