RpcAuthIssuerAssertion
class RpcAuthIssuerAssertion(clientId: String, secureArea: SecureArea, deviceAttestationId: String) : RpcAuthIssuer
RpcAuthIssuer implementation that authorizes each call with using AssertionRpcAuth object signed by a secure device key. In addition to payload
field in in authorization Cbor map it adds an assertion
field that holds DeviceAssertion.