update machine message

Signed-off-by: Lorenz Herzberger <lorenzherzberger@gmail.com>

proto/planetmintgo/machine/machine.proto

@@ -16,6 +16,7 @@ message Machine {
   string machineId = 9;
   Metadata metadata = 10; 
   uint32 type = 11;
+  string machineIdSignature = 12;
 }
 
 message Metadata {

tests/e2e/machine/suite.go

@@ -72,6 +72,8 @@ func (s *E2ETestSuite) TearDownSuite() {
 func (s *E2ETestSuite) TestAttestMachine() {
 	val := s.network.Validators[0]
 
+	// register Ta
+
 	machine := sample.Machine(sample.Name, sample.PubKey)
 	machineJSON, err := json.Marshal(&machine)
 	s.Require().NoError(err)
@@ -102,4 +104,6 @@ func (s *E2ETestSuite) TestAttestMachine() {
 
 	_, err = clitestutil.ExecTestCLICmd(val.ClientCtx, machinecli.CmdGetMachineByPublicKey(), args)
 	s.Require().NoError(err)
+
+	// verify double registration fails
 }

x/machine/types/machine.pb.go

@@ -34,6 +34,7 @@ type Machine struct {
 	MachineId          string    `protobuf:"bytes,9,opt,name=machineId,proto3" json:"machineId,omitempty"`
 	Metadata           *Metadata `protobuf:"bytes,10,opt,name=metadata,proto3" json:"metadata,omitempty"`
 	Type               uint32    `protobuf:"varint,11,opt,name=type,proto3" json:"type,omitempty"`
+	MachineIdSignature string    `protobuf:"bytes,12,opt,name=machineIdSignature,proto3" json:"machineIdSignature,omitempty"`
 }
 
 func (m *Machine) Reset()         { *m = Machine{} }
@@ -146,6 +147,13 @@ func (m *Machine) GetType() uint32 {
 	return 0
 }
 
+func (m *Machine) GetMachineIdSignature() string {
+	if m != nil {
+		return m.MachineIdSignature
+	}
+	return ""
+}
+
 type Metadata struct {
 	Gps               string `protobuf:"bytes,1,opt,name=gps,proto3" json:"gps,omitempty"`
 	Device            string `protobuf:"bytes,2,opt,name=device,proto3" json:"device,omitempty"`
@@ -285,32 +293,33 @@ func init() {
 }
 
 var fileDescriptor_1bb279745bef7c4b = []byte{
-	// 394 bytes of a gzipped FileDescriptorProto
+	// 415 bytes of a gzipped FileDescriptorProto
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 }
 
 func (m *Machine) Marshal() (dAtA []byte, err error) {
@@ -333,6 +342,13 @@ func (m *Machine) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if len(m.MachineIdSignature) > 0 {
+		i -= len(m.MachineIdSignature)
+		copy(dAtA[i:], m.MachineIdSignature)
+		i = encodeVarintMachine(dAtA, i, uint64(len(m.MachineIdSignature)))
+		i--
+		dAtA[i] = 0x62
+	}
 	if m.Type != 0 {
 		i = encodeVarintMachine(dAtA, i, uint64(m.Type))
 		i--
@@ -567,6 +583,10 @@ func (m *Machine) Size() (n int) {
 	if m.Type != 0 {
 		n += 1 + sovMachine(uint64(m.Type))
 	}
+	l = len(m.MachineIdSignature)
+	if l > 0 {
+		n += 1 + l + sovMachine(uint64(l))
+	}
 	return n
 }
 
@@ -956,6 +976,38 @@ func (m *Machine) Unmarshal(dAtA []byte) error {
 					break
 				}
 			}
+		case 12:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field MachineIdSignature", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMachine
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthMachine
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthMachine
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.MachineIdSignature = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipMachine(dAtA[iNdEx:])