diff --git a/fulcio.proto b/fulcio.proto
index 029f5cc71..cbe02e314 100644
--- a/fulcio.proto
+++ b/fulcio.proto
@@ -49,24 +49,21 @@ message CreateSigningCertificateRequest {
      * Identity information about who possesses the private / public key pair presented
      */
     Credentials credentials    = 1 [(google.api.field_behavior) = REQUIRED];
-    /*
-     * The public key to be stored in the requested certificate
-     */
-    PublicKey public_key       = 2 [(google.api.field_behavior) = OPTIONAL];
-    /*
-     * Proof that the client possesses the private key; must be verifiable by provided public key
-     *
-     * This is a currently a signature over the `sub` claim from the OIDC identity token
-     */
-    bytes proof_of_possession  = 3 [(google.api.field_behavior) = OPTIONAL];
-    /*
-     * PKCS#10 encoded certificate signing request
-     *
-     * Contains the public key to be stored in the requested certificate. All other CSR fields
-     * are ignored. Since the CSR is self-signed, it also acts as a proof of posession of
-     * the private key.
-     */
-    bytes certificate_signing_request  = 4 [(google.api.field_behavior) = OPTIONAL];
+    oneof key {
+        /*
+         * The public key to be stored in the requested certificate along with a signed
+         * challenge as proof of possession of the private key.
+         */
+        PublicKeyRequest public_key_request = 2 [(google.api.field_behavior) = REQUIRED];
+        /*
+        * PKCS#10 encoded certificate signing request
+        *
+        * Contains the public key to be stored in the requested certificate. All other CSR fields
+        * are ignored. Since the CSR is self-signed, it also acts as a proof of posession of
+        * the private key.
+        */
+        bytes certificate_signing_request  = 3 [(google.api.field_behavior) = REQUIRED];
+    }
 }
 
 message Credentials {
@@ -78,6 +75,19 @@ message Credentials {
     }
 }
 
+message PublicKeyRequest {
+    /*
+     * The public key to be stored in the requested certificate
+     */
+    PublicKey public_key       = 1 [(google.api.field_behavior) = REQUIRED];
+    /*
+     * Proof that the client possesses the private key; must be verifiable by provided public key
+     *
+     * This is a currently a signature over the `sub` claim from the OIDC identity token
+     */
+    bytes proof_of_possession  = 2 [(google.api.field_behavior) = REQUIRED];
+}
+
 message PublicKey {
     /*
      * The cryptographic algorithm to use with the key material
diff --git a/pkg/api/grpc_server.go b/pkg/api/grpc_server.go
index 968ab6a09..af6b6f410 100644
--- a/pkg/api/grpc_server.go
+++ b/pkg/api/grpc_server.go
@@ -20,7 +20,6 @@ import (
 	"crypto/x509"
 	"encoding/base64"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"strings"
 
@@ -76,14 +75,10 @@ func (g *grpcCAServer) CreateSigningCertificate(ctx context.Context, request *fu
 		return nil, handleFulcioGRPCError(ctx, codes.Unauthenticated, err, invalidCredentials)
 	}
 
-	if request.PublicKey == nil && len(request.CertificateSigningRequest) == 0 {
-		return nil, handleFulcioGRPCError(ctx, codes.InvalidArgument, errors.New("public key not provided"), invalidPublicKey)
-	}
-
 	// optionally parse CSR
 	var csr *x509.CertificateRequest
-	if len(request.CertificateSigningRequest) > 0 {
-		csr, err = challenges.ParseCSR(request.CertificateSigningRequest)
+	if len(request.GetCertificateSigningRequest()) > 0 {
+		csr, err = challenges.ParseCSR(request.GetCertificateSigningRequest())
 		if err != nil {
 			return nil, handleFulcioGRPCError(ctx, codes.InvalidArgument, err, invalidCSR)
 		}
@@ -91,8 +86,12 @@ func (g *grpcCAServer) CreateSigningCertificate(ctx context.Context, request *fu
 
 	// fetch public key from request or CSR
 	var pubKeyContent string
-	if request.PublicKey != nil {
-		pubKeyContent = request.PublicKey.Content
+	var proofOfPossession []byte
+	if request.GetPublicKeyRequest() != nil {
+		if request.GetPublicKeyRequest().PublicKey != nil {
+			pubKeyContent = request.GetPublicKeyRequest().PublicKey.Content
+		}
+		proofOfPossession = request.GetPublicKeyRequest().ProofOfPossession
 	}
 	publicKey, err := challenges.ParsePublicKey(pubKeyContent, csr)
 	if err != nil {
@@ -105,7 +104,7 @@ func (g *grpcCAServer) CreateSigningCertificate(ctx context.Context, request *fu
 	}
 
 	// verify challenge
-	subject, err := challenges.ExtractSubject(ctx, principal, publicKey, csr, request.ProofOfPossession)
+	subject, err := challenges.ExtractSubject(ctx, principal, publicKey, csr, proofOfPossession)
 	if err != nil {
 		return nil, handleFulcioGRPCError(ctx, codes.InvalidArgument, err, invalidSignature)
 	}
diff --git a/pkg/api/grpc_server_test.go b/pkg/api/grpc_server_test.go
index 310b8402e..4686abe5a 100644
--- a/pkg/api/grpc_server_test.go
+++ b/pkg/api/grpc_server_test.go
@@ -256,10 +256,14 @@ func TestAPIWithEmail(t *testing.T) {
 					OidcIdentityToken: tok,
 				},
 			},
-			PublicKey: &protobuf.PublicKey{
-				Content: pubBytes,
+			Key: &protobuf.CreateSigningCertificateRequest_PublicKeyRequest{
+				PublicKeyRequest: &protobuf.PublicKeyRequest{
+					PublicKey: &protobuf.PublicKey{
+						Content: pubBytes,
+					},
+					ProofOfPossession: proof,
+				},
 			},
-			ProofOfPossession: proof,
 		})
 		if err != nil {
 			t.Fatalf("SigningCert() = %v", err)
@@ -345,10 +349,14 @@ func TestAPIWithUriSubject(t *testing.T) {
 					OidcIdentityToken: tok,
 				},
 			},
-			PublicKey: &protobuf.PublicKey{
-				Content: pubBytes,
+			Key: &protobuf.CreateSigningCertificateRequest_PublicKeyRequest{
+				PublicKeyRequest: &protobuf.PublicKeyRequest{
+					PublicKey: &protobuf.PublicKey{
+						Content: pubBytes,
+					},
+					ProofOfPossession: proof,
+				},
 			},
-			ProofOfPossession: proof,
 		})
 		if err != nil {
 			t.Fatalf("SigningCert() = %v", err)
@@ -435,10 +443,14 @@ func TestAPIWithKubernetes(t *testing.T) {
 				OidcIdentityToken: tok,
 			},
 		},
-		PublicKey: &protobuf.PublicKey{
-			Content: pubBytes,
+		Key: &protobuf.CreateSigningCertificateRequest_PublicKeyRequest{
+			PublicKeyRequest: &protobuf.PublicKeyRequest{
+				PublicKey: &protobuf.PublicKey{
+					Content: pubBytes,
+				},
+				ProofOfPossession: proof,
+			},
 		},
-		ProofOfPossession: proof,
 	})
 	if err != nil {
 		t.Fatalf("SigningCert() = %v", err)
@@ -528,10 +540,14 @@ func TestAPIWithGitHub(t *testing.T) {
 				OidcIdentityToken: tok,
 			},
 		},
-		PublicKey: &protobuf.PublicKey{
-			Content: pubBytes,
+		Key: &protobuf.CreateSigningCertificateRequest_PublicKeyRequest{
+			PublicKeyRequest: &protobuf.PublicKeyRequest{
+				PublicKey: &protobuf.PublicKey{
+					Content: pubBytes,
+				},
+				ProofOfPossession: proof,
+			},
 		},
-		ProofOfPossession: proof,
 	})
 	if err != nil {
 		t.Fatalf("SigningCert() = %v", err)
@@ -651,7 +667,9 @@ func TestAPIWithCSRChallenge(t *testing.T) {
 				OidcIdentityToken: tok,
 			},
 		},
-		CertificateSigningRequest: pemCSR,
+		Key: &protobuf.CreateSigningCertificateRequest_CertificateSigningRequest{
+			CertificateSigningRequest: pemCSR,
+		},
 	})
 	if err != nil {
 		t.Fatalf("SigningCert() = %v", err)
@@ -726,10 +744,14 @@ func TestAPIWithInsecurePublicKey(t *testing.T) {
 				OidcIdentityToken: tok,
 			},
 		},
-		PublicKey: &protobuf.PublicKey{
-			Content: string(cryptoutils.PEMEncode(cryptoutils.CertificatePEMType, pubBytes)),
+		Key: &protobuf.CreateSigningCertificateRequest_PublicKeyRequest{
+			PublicKeyRequest: &protobuf.PublicKeyRequest{
+				PublicKey: &protobuf.PublicKey{
+					Content: string(cryptoutils.PEMEncode(cryptoutils.CertificatePEMType, pubBytes)),
+				},
+				ProofOfPossession: []byte{},
+			},
 		},
-		ProofOfPossession: []byte{},
 	})
 	if err == nil || !strings.Contains(err.Error(), "The public key supplied in the request is insecure") {
 		t.Fatalf("expected insecure public key error, got %v", err)
@@ -781,12 +803,31 @@ func TestAPIWithoutPublicKey(t *testing.T) {
 
 	client := protobuf.NewCAClient(conn)
 
+	// Test with no key proto specified
+	_, err = client.CreateSigningCertificate(ctx, &protobuf.CreateSigningCertificateRequest{
+		Credentials: &protobuf.Credentials{
+			Credentials: &protobuf.Credentials_OidcIdentityToken{
+				OidcIdentityToken: tok,
+			},
+		},
+	})
+	if err == nil || !strings.Contains(err.Error(), "The public key supplied in the request could not be parsed") {
+		t.Fatalf("expected parsing public key error, got %v", err)
+	}
+	if status.Code(err) != codes.InvalidArgument {
+		t.Fatalf("expected invalid argument, got %v", status.Code(err))
+	}
+
+	// Test with no public key specified
 	_, err = client.CreateSigningCertificate(ctx, &protobuf.CreateSigningCertificateRequest{
 		Credentials: &protobuf.Credentials{
 			Credentials: &protobuf.Credentials_OidcIdentityToken{
 				OidcIdentityToken: tok,
 			},
 		},
+		Key: &protobuf.CreateSigningCertificateRequest_PublicKeyRequest{
+			PublicKeyRequest: &protobuf.PublicKeyRequest{},
+		},
 	})
 	if err == nil || !strings.Contains(err.Error(), "The public key supplied in the request could not be parsed") {
 		t.Fatalf("expected parsing public key error, got %v", err)
@@ -847,10 +888,14 @@ func TestAPIWithInvalidChallenge(t *testing.T) {
 				OidcIdentityToken: tok,
 			},
 		},
-		PublicKey: &protobuf.PublicKey{
-			Content: pubBytes,
+		Key: &protobuf.CreateSigningCertificateRequest_PublicKeyRequest{
+			PublicKeyRequest: &protobuf.PublicKeyRequest{
+				PublicKey: &protobuf.PublicKey{
+					Content: pubBytes,
+				},
+				ProofOfPossession: invalidProof,
+			},
 		},
-		ProofOfPossession: invalidProof,
 	})
 	if err == nil || !strings.Contains(err.Error(), "The signature supplied in the request could not be verified") {
 		t.Fatalf("expected invalid signature error, got %v", err)
@@ -860,6 +905,67 @@ func TestAPIWithInvalidChallenge(t *testing.T) {
 	}
 }
 
+// Tests API with an invalid CSR.
+func TestAPIWithInvalidCSR(t *testing.T) {
+	emailSigner, emailIssuer := newOIDCIssuer(t)
+
+	// Create a FulcioConfig that supports this issuer.
+	cfg, err := config.Read([]byte(fmt.Sprintf(`{
+		"OIDCIssuers": {
+			%q: {
+				"IssuerURL": %q,
+				"ClientID": "sigstore",
+				"Type": "email"
+			}
+		}
+	}`, emailIssuer, emailIssuer)))
+	if err != nil {
+		t.Fatalf("config.Read() = %v", err)
+	}
+
+	emailSubject := "foo@example.com"
+
+	// Create an OIDC token using this issuer's signer.
+	tok, err := jwt.Signed(emailSigner).Claims(jwt.Claims{
+		Issuer:   emailIssuer,
+		IssuedAt: jwt.NewNumericDate(time.Now()),
+		Expiry:   jwt.NewNumericDate(time.Now().Add(30 * time.Minute)),
+		Subject:  emailSubject,
+		Audience: jwt.Audience{"sigstore"},
+	}).Claims(customClaims{Email: emailSubject, EmailVerified: true}).CompactSerialize()
+	if err != nil {
+		t.Fatalf("CompactSerialize() = %v", err)
+	}
+
+	ctClient, eca := createCA(cfg, t)
+	ctx := context.Background()
+	server, conn := setupGRPCForTest(ctx, t, cfg, ctClient, eca)
+	defer func() {
+		server.Stop()
+		conn.Close()
+	}()
+
+	client := protobuf.NewCAClient(conn)
+
+	_, err = client.CreateSigningCertificate(ctx, &protobuf.CreateSigningCertificateRequest{
+		Credentials: &protobuf.Credentials{
+			Credentials: &protobuf.Credentials_OidcIdentityToken{
+				OidcIdentityToken: tok,
+			},
+		},
+		Key: &protobuf.CreateSigningCertificateRequest_CertificateSigningRequest{
+			CertificateSigningRequest: []byte("invalid"),
+		},
+	})
+
+	if err == nil || !strings.Contains(err.Error(), "The certificate signing request could not be parsed") {
+		t.Fatalf("expected invalid signature error, got %v", err)
+	}
+	if status.Code(err) != codes.InvalidArgument {
+		t.Fatalf("expected invalid argument, got %v", status.Code(err))
+	}
+}
+
 // Tests API with unsigned CSR, which will fail signature verification.
 func TestAPIWithInvalidCSRSignature(t *testing.T) {
 	emailSigner, emailIssuer := newOIDCIssuer(t)
@@ -925,7 +1031,9 @@ func TestAPIWithInvalidCSRSignature(t *testing.T) {
 				OidcIdentityToken: tok,
 			},
 		},
-		CertificateSigningRequest: pemCSR,
+		Key: &protobuf.CreateSigningCertificateRequest_CertificateSigningRequest{
+			CertificateSigningRequest: pemCSR,
+		},
 	})
 
 	if err == nil || !strings.Contains(err.Error(), "The signature supplied in the request could not be verified") {
diff --git a/pkg/api/legacy_server.go b/pkg/api/legacy_server.go
index 9ad88ac0d..d419ab04c 100644
--- a/pkg/api/legacy_server.go
+++ b/pkg/api/legacy_server.go
@@ -65,10 +65,13 @@ func (l *legacyGRPCCAServer) CreateSigningCertificate(ctx context.Context, reque
 
 	var v2Request fulciogrpc.CreateSigningCertificateRequest
 	if len(request.CertificateSigningRequest) > 0 {
-		v2Request = fulciogrpc.CreateSigningCertificateRequest{
-			Credentials:               &creds,
+		key := fulciogrpc.CreateSigningCertificateRequest_CertificateSigningRequest{
 			CertificateSigningRequest: request.CertificateSigningRequest, //lint:ignore SA1019 this is valid because we're converting from v1beta to v1 API
 		}
+		v2Request = fulciogrpc.CreateSigningCertificateRequest{
+			Credentials: &creds,
+			Key:         &key,
+		}
 	} else {
 		// the CSR and the public key have not been set
 		if request.PublicKey == nil {
@@ -79,13 +82,18 @@ func (l *legacyGRPCCAServer) CreateSigningCertificate(ctx context.Context, reque
 		if !ok {
 			algorithmEnum = int32(fulciogrpc.PublicKeyAlgorithm_PUBLIC_KEY_ALGORITHM_UNSPECIFIED)
 		}
+		key := fulciogrpc.CreateSigningCertificateRequest_PublicKeyRequest{
+			PublicKeyRequest: &fulciogrpc.PublicKeyRequest{
+				PublicKey: &fulciogrpc.PublicKey{
+					Algorithm: fulciogrpc.PublicKeyAlgorithm(algorithmEnum),
+					Content:   string(request.PublicKey.Content), //lint:ignore SA1019 this is valid because we're converting from v1beta to v1 API
+				},
+				ProofOfPossession: request.SignedEmailAddress, //lint:ignore SA1019 this is valid because we're converting from v1beta to v1 API,
+			},
+		}
 		v2Request = fulciogrpc.CreateSigningCertificateRequest{
 			Credentials: &creds,
-			PublicKey: &fulciogrpc.PublicKey{
-				Algorithm: fulciogrpc.PublicKeyAlgorithm(algorithmEnum),
-				Content:   string(request.PublicKey.Content), //lint:ignore SA1019 this is valid because we're converting from v1beta to v1 API
-			},
-			ProofOfPossession: request.SignedEmailAddress, //lint:ignore SA1019 this is valid because we're converting from v1beta to v1 API
+			Key:         &key,
 		}
 	}
 
diff --git a/pkg/generated/protobuf/fulcio.pb.go b/pkg/generated/protobuf/fulcio.pb.go
index dc9369795..2baf38fcd 100644
--- a/pkg/generated/protobuf/fulcio.pb.go
+++ b/pkg/generated/protobuf/fulcio.pb.go
@@ -96,21 +96,10 @@ type CreateSigningCertificateRequest struct {
 	//
 	// Identity information about who possesses the private / public key pair presented
 	Credentials *Credentials `protobuf:"bytes,1,opt,name=credentials,proto3" json:"credentials,omitempty"`
-	//
-	// The public key to be stored in the requested certificate
-	PublicKey *PublicKey `protobuf:"bytes,2,opt,name=public_key,json=publicKey,proto3" json:"public_key,omitempty"`
-	//
-	// Proof that the client possesses the private key; must be verifiable by provided public key
-	//
-	// This is a currently a signature over the `sub` claim from the OIDC identity token
-	ProofOfPossession []byte `protobuf:"bytes,3,opt,name=proof_of_possession,json=proofOfPossession,proto3" json:"proof_of_possession,omitempty"`
-	//
-	// PKCS#10 encoded certificate signing request
-	//
-	// Contains the public key to be stored in the requested certificate. All other CSR fields
-	// are ignored. Since the CSR is self-signed, it also acts as a proof of posession of
-	// the private key.
-	CertificateSigningRequest []byte `protobuf:"bytes,4,opt,name=certificate_signing_request,json=certificateSigningRequest,proto3" json:"certificate_signing_request,omitempty"`
+	// Types that are assignable to Key:
+	//	*CreateSigningCertificateRequest_PublicKeyRequest
+	//	*CreateSigningCertificateRequest_CertificateSigningRequest
+	Key isCreateSigningCertificateRequest_Key `protobuf_oneof:"key"`
 }
 
 func (x *CreateSigningCertificateRequest) Reset() {
@@ -152,27 +141,53 @@ func (x *CreateSigningCertificateRequest) GetCredentials() *Credentials {
 	return nil
 }
 
-func (x *CreateSigningCertificateRequest) GetPublicKey() *PublicKey {
-	if x != nil {
-		return x.PublicKey
+func (m *CreateSigningCertificateRequest) GetKey() isCreateSigningCertificateRequest_Key {
+	if m != nil {
+		return m.Key
 	}
 	return nil
 }
 
-func (x *CreateSigningCertificateRequest) GetProofOfPossession() []byte {
-	if x != nil {
-		return x.ProofOfPossession
+func (x *CreateSigningCertificateRequest) GetPublicKeyRequest() *PublicKeyRequest {
+	if x, ok := x.GetKey().(*CreateSigningCertificateRequest_PublicKeyRequest); ok {
+		return x.PublicKeyRequest
 	}
 	return nil
 }
 
 func (x *CreateSigningCertificateRequest) GetCertificateSigningRequest() []byte {
-	if x != nil {
+	if x, ok := x.GetKey().(*CreateSigningCertificateRequest_CertificateSigningRequest); ok {
 		return x.CertificateSigningRequest
 	}
 	return nil
 }
 
+type isCreateSigningCertificateRequest_Key interface {
+	isCreateSigningCertificateRequest_Key()
+}
+
+type CreateSigningCertificateRequest_PublicKeyRequest struct {
+	//
+	// The public key to be stored in the requested certificate along with a signed
+	// challenge as proof of possession of the private key.
+	PublicKeyRequest *PublicKeyRequest `protobuf:"bytes,2,opt,name=public_key_request,json=publicKeyRequest,proto3,oneof"`
+}
+
+type CreateSigningCertificateRequest_CertificateSigningRequest struct {
+	//
+	// PKCS#10 encoded certificate signing request
+	//
+	// Contains the public key to be stored in the requested certificate. All other CSR fields
+	// are ignored. Since the CSR is self-signed, it also acts as a proof of posession of
+	// the private key.
+	CertificateSigningRequest []byte `protobuf:"bytes,3,opt,name=certificate_signing_request,json=certificateSigningRequest,proto3,oneof"`
+}
+
+func (*CreateSigningCertificateRequest_PublicKeyRequest) isCreateSigningCertificateRequest_Key() {}
+
+func (*CreateSigningCertificateRequest_CertificateSigningRequest) isCreateSigningCertificateRequest_Key() {
+}
+
 type Credentials struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -241,6 +256,67 @@ type Credentials_OidcIdentityToken struct {
 
 func (*Credentials_OidcIdentityToken) isCredentials_Credentials() {}
 
+type PublicKeyRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	//
+	// The public key to be stored in the requested certificate
+	PublicKey *PublicKey `protobuf:"bytes,1,opt,name=public_key,json=publicKey,proto3" json:"public_key,omitempty"`
+	//
+	// Proof that the client possesses the private key; must be verifiable by provided public key
+	//
+	// This is a currently a signature over the `sub` claim from the OIDC identity token
+	ProofOfPossession []byte `protobuf:"bytes,2,opt,name=proof_of_possession,json=proofOfPossession,proto3" json:"proof_of_possession,omitempty"`
+}
+
+func (x *PublicKeyRequest) Reset() {
+	*x = PublicKeyRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_fulcio_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PublicKeyRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PublicKeyRequest) ProtoMessage() {}
+
+func (x *PublicKeyRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_fulcio_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PublicKeyRequest.ProtoReflect.Descriptor instead.
+func (*PublicKeyRequest) Descriptor() ([]byte, []int) {
+	return file_fulcio_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *PublicKeyRequest) GetPublicKey() *PublicKey {
+	if x != nil {
+		return x.PublicKey
+	}
+	return nil
+}
+
+func (x *PublicKeyRequest) GetProofOfPossession() []byte {
+	if x != nil {
+		return x.ProofOfPossession
+	}
+	return nil
+}
+
 type PublicKey struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -257,7 +333,7 @@ type PublicKey struct {
 func (x *PublicKey) Reset() {
 	*x = PublicKey{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_fulcio_proto_msgTypes[2]
+		mi := &file_fulcio_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -270,7 +346,7 @@ func (x *PublicKey) String() string {
 func (*PublicKey) ProtoMessage() {}
 
 func (x *PublicKey) ProtoReflect() protoreflect.Message {
-	mi := &file_fulcio_proto_msgTypes[2]
+	mi := &file_fulcio_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -283,7 +359,7 @@ func (x *PublicKey) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use PublicKey.ProtoReflect.Descriptor instead.
 func (*PublicKey) Descriptor() ([]byte, []int) {
-	return file_fulcio_proto_rawDescGZIP(), []int{2}
+	return file_fulcio_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *PublicKey) GetAlgorithm() PublicKeyAlgorithm {
@@ -314,7 +390,7 @@ type SigningCertificate struct {
 func (x *SigningCertificate) Reset() {
 	*x = SigningCertificate{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_fulcio_proto_msgTypes[3]
+		mi := &file_fulcio_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -327,7 +403,7 @@ func (x *SigningCertificate) String() string {
 func (*SigningCertificate) ProtoMessage() {}
 
 func (x *SigningCertificate) ProtoReflect() protoreflect.Message {
-	mi := &file_fulcio_proto_msgTypes[3]
+	mi := &file_fulcio_proto_msgTypes[4]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -340,7 +416,7 @@ func (x *SigningCertificate) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SigningCertificate.ProtoReflect.Descriptor instead.
 func (*SigningCertificate) Descriptor() ([]byte, []int) {
-	return file_fulcio_proto_rawDescGZIP(), []int{3}
+	return file_fulcio_proto_rawDescGZIP(), []int{4}
 }
 
 func (m *SigningCertificate) GetCertificate() isSigningCertificate_Certificate {
@@ -403,7 +479,7 @@ type SigningCertificateDetachedSCT struct {
 func (x *SigningCertificateDetachedSCT) Reset() {
 	*x = SigningCertificateDetachedSCT{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_fulcio_proto_msgTypes[4]
+		mi := &file_fulcio_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -416,7 +492,7 @@ func (x *SigningCertificateDetachedSCT) String() string {
 func (*SigningCertificateDetachedSCT) ProtoMessage() {}
 
 func (x *SigningCertificateDetachedSCT) ProtoReflect() protoreflect.Message {
-	mi := &file_fulcio_proto_msgTypes[4]
+	mi := &file_fulcio_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -429,7 +505,7 @@ func (x *SigningCertificateDetachedSCT) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SigningCertificateDetachedSCT.ProtoReflect.Descriptor instead.
 func (*SigningCertificateDetachedSCT) Descriptor() ([]byte, []int) {
-	return file_fulcio_proto_rawDescGZIP(), []int{4}
+	return file_fulcio_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *SigningCertificateDetachedSCT) GetChain() *CertificateChain {
@@ -462,7 +538,7 @@ type SigningCertificateEmbeddedSCT struct {
 func (x *SigningCertificateEmbeddedSCT) Reset() {
 	*x = SigningCertificateEmbeddedSCT{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_fulcio_proto_msgTypes[5]
+		mi := &file_fulcio_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -475,7 +551,7 @@ func (x *SigningCertificateEmbeddedSCT) String() string {
 func (*SigningCertificateEmbeddedSCT) ProtoMessage() {}
 
 func (x *SigningCertificateEmbeddedSCT) ProtoReflect() protoreflect.Message {
-	mi := &file_fulcio_proto_msgTypes[5]
+	mi := &file_fulcio_proto_msgTypes[6]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -488,7 +564,7 @@ func (x *SigningCertificateEmbeddedSCT) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SigningCertificateEmbeddedSCT.ProtoReflect.Descriptor instead.
 func (*SigningCertificateEmbeddedSCT) Descriptor() ([]byte, []int) {
-	return file_fulcio_proto_rawDescGZIP(), []int{5}
+	return file_fulcio_proto_rawDescGZIP(), []int{6}
 }
 
 func (x *SigningCertificateEmbeddedSCT) GetChain() *CertificateChain {
@@ -508,7 +584,7 @@ type GetTrustBundleRequest struct {
 func (x *GetTrustBundleRequest) Reset() {
 	*x = GetTrustBundleRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_fulcio_proto_msgTypes[6]
+		mi := &file_fulcio_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -521,7 +597,7 @@ func (x *GetTrustBundleRequest) String() string {
 func (*GetTrustBundleRequest) ProtoMessage() {}
 
 func (x *GetTrustBundleRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_fulcio_proto_msgTypes[6]
+	mi := &file_fulcio_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -534,7 +610,7 @@ func (x *GetTrustBundleRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetTrustBundleRequest.ProtoReflect.Descriptor instead.
 func (*GetTrustBundleRequest) Descriptor() ([]byte, []int) {
-	return file_fulcio_proto_rawDescGZIP(), []int{6}
+	return file_fulcio_proto_rawDescGZIP(), []int{7}
 }
 
 type TrustBundle struct {
@@ -551,7 +627,7 @@ type TrustBundle struct {
 func (x *TrustBundle) Reset() {
 	*x = TrustBundle{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_fulcio_proto_msgTypes[7]
+		mi := &file_fulcio_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -564,7 +640,7 @@ func (x *TrustBundle) String() string {
 func (*TrustBundle) ProtoMessage() {}
 
 func (x *TrustBundle) ProtoReflect() protoreflect.Message {
-	mi := &file_fulcio_proto_msgTypes[7]
+	mi := &file_fulcio_proto_msgTypes[8]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -577,7 +653,7 @@ func (x *TrustBundle) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use TrustBundle.ProtoReflect.Descriptor instead.
 func (*TrustBundle) Descriptor() ([]byte, []int) {
-	return file_fulcio_proto_rawDescGZIP(), []int{7}
+	return file_fulcio_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *TrustBundle) GetChains() []*CertificateChain {
@@ -600,7 +676,7 @@ type CertificateChain struct {
 func (x *CertificateChain) Reset() {
 	*x = CertificateChain{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_fulcio_proto_msgTypes[8]
+		mi := &file_fulcio_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -613,7 +689,7 @@ func (x *CertificateChain) String() string {
 func (*CertificateChain) ProtoMessage() {}
 
 func (x *CertificateChain) ProtoReflect() protoreflect.Message {
-	mi := &file_fulcio_proto_msgTypes[8]
+	mi := &file_fulcio_proto_msgTypes[9]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -626,7 +702,7 @@ func (x *CertificateChain) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use CertificateChain.ProtoReflect.Descriptor instead.
 func (*CertificateChain) Descriptor() ([]byte, []int) {
-	return file_fulcio_proto_rawDescGZIP(), []int{8}
+	return file_fulcio_proto_rawDescGZIP(), []int{9}
 }
 
 func (x *CertificateChain) GetCertificates() []string {
@@ -645,114 +721,122 @@ var file_fulcio_proto_rawDesc = []byte{
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-	0x62, 0x75, 0x66, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x22, 0x1e, 0x82, 0xd3, 0xe4, 0x93, 0x02, 0x18, 0x22, 0x13, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x76,
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+	0x12, 0x81, 0x01, 0x0a, 0x0e, 0x47, 0x65, 0x74, 0x54, 0x72, 0x75, 0x73, 0x74, 0x42, 0x75, 0x6e,
+	0x64, 0x6c, 0x65, 0x12, 0x2d, 0x2e, 0x64, 0x65, 0x76, 0x2e, 0x73, 0x69, 0x67, 0x73, 0x74, 0x6f,
+	0x72, 0x65, 0x2e, 0x66, 0x75, 0x6c, 0x63, 0x69, 0x6f, 0x2e, 0x76, 0x32, 0x2e, 0x47, 0x65, 0x74,
+	0x54, 0x72, 0x75, 0x73, 0x74, 0x42, 0x75, 0x6e, 0x64, 0x6c, 0x65, 0x52, 0x65, 0x71, 0x75, 0x65,
+	0x73, 0x74, 0x1a, 0x23, 0x2e, 0x64, 0x65, 0x76, 0x2e, 0x73, 0x69, 0x67, 0x73, 0x74, 0x6f, 0x72,
+	0x65, 0x2e, 0x66, 0x75, 0x6c, 0x63, 0x69, 0x6f, 0x2e, 0x76, 0x32, 0x2e, 0x54, 0x72, 0x75, 0x73,
+	0x74, 0x42, 0x75, 0x6e, 0x64, 0x6c, 0x65, 0x22, 0x1b, 0x82, 0xd3, 0xe4, 0x93, 0x02, 0x15, 0x12,
+	0x13, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x76, 0x32, 0x2f, 0x74, 0x72, 0x75, 0x73, 0x74, 0x42, 0x75,
+	0x6e, 0x64, 0x6c, 0x65, 0x42, 0x5a, 0x0a, 0x16, 0x64, 0x65, 0x76, 0x2e, 0x73, 0x69, 0x67, 0x73,
+	0x74, 0x6f, 0x72, 0x65, 0x2e, 0x66, 0x75, 0x6c, 0x63, 0x69, 0x6f, 0x2e, 0x76, 0x32, 0x42, 0x0b,
+	0x46, 0x75, 0x6c, 0x63, 0x69, 0x6f, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a, 0x31, 0x67,
+	0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x73, 0x69, 0x67, 0x73, 0x74, 0x6f,
+	0x72, 0x65, 0x2f, 0x66, 0x75, 0x6c, 0x63, 0x69, 0x6f, 0x2f, 0x70, 0x6b, 0x67, 0x2f, 0x67, 0x65,
+	0x6e, 0x65, 0x72, 0x61, 0x74, 0x65, 0x64, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -768,37 +852,39 @@ func file_fulcio_proto_rawDescGZIP() []byte {
 }
 
 var file_fulcio_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
-var file_fulcio_proto_msgTypes = make([]protoimpl.MessageInfo, 9)
+var file_fulcio_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
 var file_fulcio_proto_goTypes = []interface{}{
 	(PublicKeyAlgorithm)(0),                 // 0: dev.sigstore.fulcio.v2.PublicKeyAlgorithm
 	(*CreateSigningCertificateRequest)(nil), // 1: dev.sigstore.fulcio.v2.CreateSigningCertificateRequest
 	(*Credentials)(nil),                     // 2: dev.sigstore.fulcio.v2.Credentials
-	(*PublicKey)(nil),                       // 3: dev.sigstore.fulcio.v2.PublicKey
-	(*SigningCertificate)(nil),              // 4: dev.sigstore.fulcio.v2.SigningCertificate
-	(*SigningCertificateDetachedSCT)(nil),   // 5: dev.sigstore.fulcio.v2.SigningCertificateDetachedSCT
-	(*SigningCertificateEmbeddedSCT)(nil),   // 6: dev.sigstore.fulcio.v2.SigningCertificateEmbeddedSCT
-	(*GetTrustBundleRequest)(nil),           // 7: dev.sigstore.fulcio.v2.GetTrustBundleRequest
-	(*TrustBundle)(nil),                     // 8: dev.sigstore.fulcio.v2.TrustBundle
-	(*CertificateChain)(nil),                // 9: dev.sigstore.fulcio.v2.CertificateChain
+	(*PublicKeyRequest)(nil),                // 3: dev.sigstore.fulcio.v2.PublicKeyRequest
+	(*PublicKey)(nil),                       // 4: dev.sigstore.fulcio.v2.PublicKey
+	(*SigningCertificate)(nil),              // 5: dev.sigstore.fulcio.v2.SigningCertificate
+	(*SigningCertificateDetachedSCT)(nil),   // 6: dev.sigstore.fulcio.v2.SigningCertificateDetachedSCT
+	(*SigningCertificateEmbeddedSCT)(nil),   // 7: dev.sigstore.fulcio.v2.SigningCertificateEmbeddedSCT
+	(*GetTrustBundleRequest)(nil),           // 8: dev.sigstore.fulcio.v2.GetTrustBundleRequest
+	(*TrustBundle)(nil),                     // 9: dev.sigstore.fulcio.v2.TrustBundle
+	(*CertificateChain)(nil),                // 10: dev.sigstore.fulcio.v2.CertificateChain
 }
 var file_fulcio_proto_depIdxs = []int32{
 	2,  // 0: dev.sigstore.fulcio.v2.CreateSigningCertificateRequest.credentials:type_name -> dev.sigstore.fulcio.v2.Credentials
-	3,  // 1: dev.sigstore.fulcio.v2.CreateSigningCertificateRequest.public_key:type_name -> dev.sigstore.fulcio.v2.PublicKey
-	0,  // 2: dev.sigstore.fulcio.v2.PublicKey.algorithm:type_name -> dev.sigstore.fulcio.v2.PublicKeyAlgorithm
-	5,  // 3: dev.sigstore.fulcio.v2.SigningCertificate.signed_certificate_detached_sct:type_name -> dev.sigstore.fulcio.v2.SigningCertificateDetachedSCT
-	6,  // 4: dev.sigstore.fulcio.v2.SigningCertificate.signed_certificate_embedded_sct:type_name -> dev.sigstore.fulcio.v2.SigningCertificateEmbeddedSCT
-	9,  // 5: dev.sigstore.fulcio.v2.SigningCertificateDetachedSCT.chain:type_name -> dev.sigstore.fulcio.v2.CertificateChain
-	9,  // 6: dev.sigstore.fulcio.v2.SigningCertificateEmbeddedSCT.chain:type_name -> dev.sigstore.fulcio.v2.CertificateChain
-	9,  // 7: dev.sigstore.fulcio.v2.TrustBundle.chains:type_name -> dev.sigstore.fulcio.v2.CertificateChain
-	1,  // 8: dev.sigstore.fulcio.v2.CA.CreateSigningCertificate:input_type -> dev.sigstore.fulcio.v2.CreateSigningCertificateRequest
-	7,  // 9: dev.sigstore.fulcio.v2.CA.GetTrustBundle:input_type -> dev.sigstore.fulcio.v2.GetTrustBundleRequest
-	4,  // 10: dev.sigstore.fulcio.v2.CA.CreateSigningCertificate:output_type -> dev.sigstore.fulcio.v2.SigningCertificate
-	8,  // 11: dev.sigstore.fulcio.v2.CA.GetTrustBundle:output_type -> dev.sigstore.fulcio.v2.TrustBundle
-	10, // [10:12] is the sub-list for method output_type
-	8,  // [8:10] is the sub-list for method input_type
-	8,  // [8:8] is the sub-list for extension type_name
-	8,  // [8:8] is the sub-list for extension extendee
-	0,  // [0:8] is the sub-list for field type_name
+	3,  // 1: dev.sigstore.fulcio.v2.CreateSigningCertificateRequest.public_key_request:type_name -> dev.sigstore.fulcio.v2.PublicKeyRequest
+	4,  // 2: dev.sigstore.fulcio.v2.PublicKeyRequest.public_key:type_name -> dev.sigstore.fulcio.v2.PublicKey
+	0,  // 3: dev.sigstore.fulcio.v2.PublicKey.algorithm:type_name -> dev.sigstore.fulcio.v2.PublicKeyAlgorithm
+	6,  // 4: dev.sigstore.fulcio.v2.SigningCertificate.signed_certificate_detached_sct:type_name -> dev.sigstore.fulcio.v2.SigningCertificateDetachedSCT
+	7,  // 5: dev.sigstore.fulcio.v2.SigningCertificate.signed_certificate_embedded_sct:type_name -> dev.sigstore.fulcio.v2.SigningCertificateEmbeddedSCT
+	10, // 6: dev.sigstore.fulcio.v2.SigningCertificateDetachedSCT.chain:type_name -> dev.sigstore.fulcio.v2.CertificateChain
+	10, // 7: dev.sigstore.fulcio.v2.SigningCertificateEmbeddedSCT.chain:type_name -> dev.sigstore.fulcio.v2.CertificateChain
+	10, // 8: dev.sigstore.fulcio.v2.TrustBundle.chains:type_name -> dev.sigstore.fulcio.v2.CertificateChain
+	1,  // 9: dev.sigstore.fulcio.v2.CA.CreateSigningCertificate:input_type -> dev.sigstore.fulcio.v2.CreateSigningCertificateRequest
+	8,  // 10: dev.sigstore.fulcio.v2.CA.GetTrustBundle:input_type -> dev.sigstore.fulcio.v2.GetTrustBundleRequest
+	5,  // 11: dev.sigstore.fulcio.v2.CA.CreateSigningCertificate:output_type -> dev.sigstore.fulcio.v2.SigningCertificate
+	9,  // 12: dev.sigstore.fulcio.v2.CA.GetTrustBundle:output_type -> dev.sigstore.fulcio.v2.TrustBundle
+	11, // [11:13] is the sub-list for method output_type
+	9,  // [9:11] is the sub-list for method input_type
+	9,  // [9:9] is the sub-list for extension type_name
+	9,  // [9:9] is the sub-list for extension extendee
+	0,  // [0:9] is the sub-list for field type_name
 }
 
 func init() { file_fulcio_proto_init() }
@@ -832,7 +918,7 @@ func file_fulcio_proto_init() {
 			}
 		}
 		file_fulcio_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*PublicKey); i {
+			switch v := v.(*PublicKeyRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -844,7 +930,7 @@ func file_fulcio_proto_init() {
 			}
 		}
 		file_fulcio_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SigningCertificate); i {
+			switch v := v.(*PublicKey); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -856,7 +942,7 @@ func file_fulcio_proto_init() {
 			}
 		}
 		file_fulcio_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SigningCertificateDetachedSCT); i {
+			switch v := v.(*SigningCertificate); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -868,7 +954,7 @@ func file_fulcio_proto_init() {
 			}
 		}
 		file_fulcio_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SigningCertificateEmbeddedSCT); i {
+			switch v := v.(*SigningCertificateDetachedSCT); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -880,7 +966,7 @@ func file_fulcio_proto_init() {
 			}
 		}
 		file_fulcio_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GetTrustBundleRequest); i {
+			switch v := v.(*SigningCertificateEmbeddedSCT); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -892,7 +978,7 @@ func file_fulcio_proto_init() {
 			}
 		}
 		file_fulcio_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*TrustBundle); i {
+			switch v := v.(*GetTrustBundleRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -904,6 +990,18 @@ func file_fulcio_proto_init() {
 			}
 		}
 		file_fulcio_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TrustBundle); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_fulcio_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*CertificateChain); i {
 			case 0:
 				return &v.state
@@ -916,10 +1014,14 @@ func file_fulcio_proto_init() {
 			}
 		}
 	}
+	file_fulcio_proto_msgTypes[0].OneofWrappers = []interface{}{
+		(*CreateSigningCertificateRequest_PublicKeyRequest)(nil),
+		(*CreateSigningCertificateRequest_CertificateSigningRequest)(nil),
+	}
 	file_fulcio_proto_msgTypes[1].OneofWrappers = []interface{}{
 		(*Credentials_OidcIdentityToken)(nil),
 	}
-	file_fulcio_proto_msgTypes[3].OneofWrappers = []interface{}{
+	file_fulcio_proto_msgTypes[4].OneofWrappers = []interface{}{
 		(*SigningCertificate_SignedCertificateDetachedSct)(nil),
 		(*SigningCertificate_SignedCertificateEmbeddedSct)(nil),
 	}
@@ -929,7 +1031,7 @@ func file_fulcio_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_fulcio_proto_rawDesc,
 			NumEnums:      1,
-			NumMessages:   9,
+			NumMessages:   10,
 			NumExtensions: 0,
 			NumServices:   1,
 		},