Sequencer: require L1-permissioned enlave ID (#2233)

go/common/enclave.go

@@ -64,9 +64,6 @@ type EnclaveInit interface {
 
 // EnclaveAdmin provides administrative functions for managing an enclave.
 type EnclaveAdmin interface {
-	// AddSequencer - called by the host when a new sequencer is added to the management contract
-	AddSequencer(id EnclaveID, proof types.Receipt) SystemError
-
 	// MakeActive - backup sequencer enclave can become active at the command of the host
 	MakeActive() SystemError
 

go/common/l1_transaction.go

@@ -49,6 +49,8 @@ type L1InitializeSecretTx struct {
 	Attestation   EncodedAttestationReport
 }
 
+type L1PermissionSeqTx struct{}
+
 // The following types and structs are used for processing the l1 blocks and categorising the transactions to be processed
 // by the enclave.