Just create key file if key generation is requested.

ox.go

@@ -169,16 +169,9 @@ func oxGetPrivKey(jid string, passphrase string) (*crypto.Key, error) {
 
 func oxStoreKey(location string, key string) error {
 	var file *os.File
-	if _, err := os.Stat(location); os.IsNotExist(err) {
-		file, err = os.Create(location)
-		if err != nil {
-			return err
-		}
-	} else {
-		file, err = os.OpenFile(location, os.O_RDWR, os.FileMode(0600))
-		if err != nil {
-			return err
-		}
+	file, err := os.Create(location)
+	if err != nil {
+		return err
 	}
 	defer file.Close()
 	if runtime.GOOS != "windows" {
@@ -186,11 +179,10 @@ func oxStoreKey(location string, key string) error {
 	} else {
 		_ = file.Chmod(os.FileMode(0200))
 	}
-	_, err := file.Write([]byte(key))
+	_, err = file.Write([]byte(key))
 	if err != nil {
 		return err
 	}
-
 	return nil
 }