Revert "Remove extractable from StoreCertificate."

This reverts commit 614ee79489.

cmd/step-pkcs11-init/main.go

@@ -335,6 +335,7 @@ func createPKI(k kms.KeyManager, c Config) error {
 			if err := cm.StoreCertificate(&apiv1.StoreCertificateRequest{
 				Name:        c.RootObject,
 				Certificate: root,
+				Extractable: c.Extractable,
 			}); err != nil {
 				return err
 			}
@@ -413,6 +414,7 @@ func createPKI(k kms.KeyManager, c Config) error {
 		if err := cm.StoreCertificate(&apiv1.StoreCertificateRequest{
 			Name:        c.CrtObject,
 			Certificate: intermediate,
+			Extractable: c.Extractable,
 		}); err != nil {
 			return err
 		}

kms/apiv1/requests.go

@@ -100,7 +100,7 @@ type GetPublicKeyRequest struct {
 type CreateKeyRequest struct {
 	// Name represents the key name or label used to identify a key.
 	//
-	// Used by: awskms, cloudkms, azurekms, pkcs11, yubikey.
+	// Used by: awskms, cloudkms, pkcs11, yubikey.
 	Name string
 
 	// SignatureAlgorithm represents the type of key to create.
@@ -110,13 +110,11 @@ type CreateKeyRequest struct {
 	Bits int
 
 	// ProtectionLevel specifies how cryptographic operations are performed.
-	// Used by: cloudkms, azurekms
+	// Used by: cloudkms
 	ProtectionLevel ProtectionLevel
 
-	// Extractable defines if the new key may be exported from the HSM under a
+	// Whether the key may be exported from the HSM under a wrap key.
-	// wrap key. On pkcs11 sets the CKA_EXTRACTABLE bit.
+	// Sets the CKA_EXTRACTABLE bit.
-	//
-	// Used by: pkcs11
 	Extractable bool
 }
 
@@ -158,4 +156,8 @@ type LoadCertificateRequest struct {
 type StoreCertificateRequest struct {
 	Name        string
 	Certificate *x509.Certificate
+
+	// Whether the key may be exported from the HSM under a wrap key.
+	// Sets the CKA_EXTRACTABLE bit.
+	Extractable bool
 }

kms/pkcs11/pkcs11.go

@@ -32,7 +32,7 @@ const DefaultRSASize = 3072
 type P11 interface {
 	FindKeyPair(id, label []byte) (crypto11.Signer, error)
 	FindCertificate(id, label []byte, serial *big.Int) (*x509.Certificate, error)
-	ImportCertificateWithLabel(id, label []byte, certificate *x509.Certificate) error
+	ImportCertificateWithAttributes(template crypto11.AttributeSet, certificate *x509.Certificate) error
 	DeleteCertificate(id, label []byte, serial *big.Int) error
 	GenerateRSAKeyPairWithAttributes(public, private crypto11.AttributeSet, bits int) (crypto11.SignerDecrypter, error)
 	GenerateECDSAKeyPairWithAttributes(public, private crypto11.AttributeSet, curve elliptic.Curve) (crypto11.Signer, error)
@@ -201,7 +201,15 @@ func (k *PKCS11) StoreCertificate(req *apiv1.StoreCertificateRequest) error {
 		}, "storeCertificate failed")
 	}
 
-	if err := k.p11.ImportCertificateWithLabel(id, object, req.Certificate); err != nil {
+	// Import certificate with the necessary attributes.
+	template, err := crypto11.NewAttributeSetWithIDAndLabel(id, object)
+	if err != nil {
+		return errors.Wrap(err, "storeCertificate failed")
+	}
+	if req.Extractable {
+		template.Set(crypto11.CkaExtractable, true)
+	}
+	if err := k.p11.ImportCertificateWithAttributes(template, req.Certificate); err != nil {
 		return errors.Wrap(err, "storeCertificate failed")
 	}
 

kms/pkcs11/pkcs11_test.go

@@ -209,13 +209,13 @@ func TestPKCS11_CreateKey(t *testing.T) {
 			},
 		}, false},
 		{"default extractable", args{&apiv1.CreateKeyRequest{
-			Name:        testObjectAlt,
+			Name:        testObject,
 			Extractable: true,
 		}}, &apiv1.CreateKeyResponse{
-			Name:      testObjectAlt,
+			Name:      testObject,
 			PublicKey: &ecdsa.PublicKey{},
 			CreateSignerRequest: apiv1.CreateSignerRequest{
-				SigningKey: testObjectAlt,
+				SigningKey: testObject,
 			},
 		}, false},
 		{"RSA SHA256WithRSA", args{&apiv1.CreateKeyRequest{
@@ -573,6 +573,7 @@ func TestPKCS11_StoreCertificate(t *testing.T) {
 	// Make sure to delete the created certificate
 	t.Cleanup(func() {
 		k.DeleteCertificate(testObject)
+		k.DeleteCertificate(testObjectAlt)
 	})
 
 	type args struct {
@@ -587,6 +588,11 @@ func TestPKCS11_StoreCertificate(t *testing.T) {
 			Name:        testObject,
 			Certificate: cert,
 		}}, false},
+		{"ok extractable", args{&apiv1.StoreCertificateRequest{
+			Name:        testObjectAlt,
+			Certificate: cert,
+			Extractable: true,
+		}}, false},
 		{"fail already exists", args{&apiv1.StoreCertificateRequest{
 			Name:        testObject,
 			Certificate: cert,
@@ -614,6 +620,11 @@ func TestPKCS11_StoreCertificate(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
+			if tt.args.req.Extractable {
+				if testModule == "SoftHSM2" {
+					t.Skip("Extractable certificates are not supported on SoftHSM2")
+				}
+			}
 			if err := k.StoreCertificate(tt.args.req); (err != nil) != tt.wantErr {
 				t.Errorf("PKCS11.StoreCertificate() error = %v, wantErr %v", err, tt.wantErr)
 			}