From d46ce2bdd667f17e56c163e4fdc3296b186fb6e4 Mon Sep 17 00:00:00 2001
From: Alexander Wagner <alexander.wagner@aisec.fraunhofer.de>
Date: Fri, 6 Sep 2024 11:04:24 +0200
Subject: [PATCH] FIXUP WIP More throughly use SstExtension and Option

---
 src/hss/definitions.rs | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/hss/definitions.rs b/src/hss/definitions.rs
index 1d8d591..d5cb95a 100644
--- a/src/hss/definitions.rs
+++ b/src/hss/definitions.rs
@@ -116,11 +116,10 @@ impl<H: HashChain> HssPrivateKey<H> {
             return hss_expand_aux_data::<H>(Some(aux_data), Some(private_key.seed.as_slice()));
         }
 
-        let opt_l0_top_div = if let Some(sst_extension) = &private_key.sst_option {
-            Some(sst_extension.l0_top_div())
-        } else {
-            None
-        };
+        let opt_l0_top_div = private_key
+            .sst_option
+            .as_ref()
+            .map(|sst_extension| sst_extension.l0_top_div());
 
         // Shrink input slice
         let aux_len = hss_get_aux_data_len(aux_data.len(), *top_lms_parameter, opt_l0_top_div);