diff --git a/moksha-wallet/src/secret.rs b/moksha-wallet/src/secret.rs
index 7e76a6d7..a1a9b23b 100644
--- a/moksha-wallet/src/secret.rs
+++ b/moksha-wallet/src/secret.rs
@@ -58,7 +58,7 @@ impl DeterministicSecret {
         Ok(key.private_key().to_bytes().to_vec())
     }
 
-    pub fn derive_secret(&self, keyset_id: u32, counter: u32) -> Result<String, MokshaWalletError> {
+    fn derive_secret(&self, keyset_id: u32, counter: u32) -> Result<String, MokshaWalletError> {
         let key = self.derive_private_key(keyset_id, counter, DerivationType::Secret)?;
         Ok(hex::encode(key))
     }
@@ -78,7 +78,7 @@ impl DeterministicSecret {
             .collect::<Vec<(String, SecretKey)>>())
     }
 
-    pub fn derive_blinding_factor(
+    fn derive_blinding_factor(
         &self,
         keyset_id: u32,
         counter: u32,
@@ -148,4 +148,35 @@ mod tests {
         }
         Ok(())
     }
+
+    #[test]
+    fn test_secret_range() -> anyhow::Result<()> {
+        let phrase =
+            "half depart obvious quality work element tank gorilla view sugar picture humble";
+        let deterministic_secret = DeterministicSecret::from_seed_words(phrase)?;
+
+        let secrets = [
+            "485875df74771877439ac06339e284c3acfcd9be7abf3bc20b516faeadfe77ae",
+            "8f2b39e8e594a4056eb1e6dbb4b0c38ef13b1b2c751f64f810ec04ee35b77270",
+            "bc628c79accd2364fd31511216a0fab62afd4a18ff77a20deded7b858c9860c8",
+            "59284fd1650ea9fa17db2b3acf59ecd0f2d52ec3261dd4152785813ff27a33bf",
+            "576c23393a8b31cc8da6688d9c9a96394ec74b40fdaf1f693a6bb84284334ea0",
+        ];
+
+        let blinding_factors = [
+            "ad00d431add9c673e843d4c2bf9a778a5f402b985b8da2d5550bf39cda41d679",
+            "967d5232515e10b81ff226ecf5a9e2e2aff92d66ebc3edf0987eb56357fd6248",
+            "b20f47bb6ae083659f3aa986bfa0435c55c6d93f687d51a01f26862d9b9a4899",
+            "fb5fca398eb0b1deb955a2988b5ac77d32956155f1c002a373535211a2dfdc29",
+            "5f09bfbfe27c439a597719321e061e2e40aad4a36768bb2bcc3de547c9644bf9",
+        ];
+
+        let range = deterministic_secret.derive_range(864559728, 0, 5)?;
+
+        for (i, (secret, blinding_factor)) in range.iter().enumerate() {
+            assert_eq!(secrets[i], secret);
+            assert_eq!(blinding_factors[i], hex::encode(&blinding_factor[..]));
+        }
+        Ok(())
+    }
 }