fix: IV size for AES-GCM

kentakayama · Jul 15, 2024 · eb0ee9f · eb0ee9f
1 parent 1eeef3b
commit eb0ee9f
Showing 1 changed file with 5 additions and 5 deletions.
diff --git a/src/t_cose_util.c b/src/t_cose_util.c
@@ -256,20 +256,20 @@ uint32_t
 bits_iv_alg(int32_t cose_algorithm_id)
 {
     switch(cose_algorithm_id) {
+        case T_COSE_ALGORITHM_A128GCM:
+        case T_COSE_ALGORITHM_A192GCM:
+        case T_COSE_ALGORITHM_A256GCM: return 96;
         case T_COSE_ALGORITHM_AES128CCM_16_128:
         case T_COSE_ALGORITHM_A128KW:
-        case T_COSE_ALGORITHM_A128GCM:
         case T_COSE_ALGORITHM_A128CTR:
         case T_COSE_ALGORITHM_A128CBC:
         case T_COSE_ALGORITHM_A192CTR:
         case T_COSE_ALGORITHM_A192CBC:
         case T_COSE_ALGORITHM_A256CTR:
         case T_COSE_ALGORITHM_A256CBC: return 128;
-        case T_COSE_ALGORITHM_A192KW:
-        case T_COSE_ALGORITHM_A192GCM: return 192;
+        case T_COSE_ALGORITHM_A192KW: return 192;
         case T_COSE_ALGORITHM_AES256CCM_16_128:
-        case T_COSE_ALGORITHM_A256KW:
-        case T_COSE_ALGORITHM_A256GCM: return 256;
+        case T_COSE_ALGORITHM_A256KW: return 256;
         default: return UINT32_MAX;
     }
 }