diff --git a/services/root-keys/src/main.rs b/services/root-keys/src/main.rs
index f503152c5..4c28f278c 100644
--- a/services/root-keys/src/main.rs
+++ b/services/root-keys/src/main.rs
@@ -85,6 +85,12 @@ mod implementation {
     use num_traits::*;
     use crate::{SignatureResult, GatewareRegion, MetadataInFlash};
 
+    #[derive(Debug, Copy, Clone)]
+    #[allow(dead_code)]
+    pub enum FpgaKeySource {
+        Bbram,
+        Efuse,
+    }
     #[allow(dead_code)]
     pub struct RootKeys {
         password_type: Option<PasswordType>,
@@ -179,6 +185,9 @@ mod implementation {
         pub fn is_pcache_boot_password_valid(&self) -> bool {
             false
         }
+        pub fn fpga_key_source(&self) -> FpgaKeySource {
+            FpgaKeySource::Efuse
+        }
 
         pub fn fetch_gw_metadata(&self, _region_enum: GatewareRegion) -> MetadataInFlash {
             MetadataInFlash {