add reference date for validity verification

npa/src/npa-tool.c

@@ -598,7 +598,9 @@ main (int argc, char **argv)
                 }
                 if (cmdline.verify_validity_given) {
                     r = add_to_ASN1_AUXILIARY_DATA(&templates,
-                            NID_id_DateOfExpiry, NULL, 0);
+                            NID_id_DateOfExpiry,
+                            (unsigned char *) cmdline.verify_validity_arg,
+                            strlen(cmdline.verify_validity_arg));
                     if (r < 0)
                         goto err;
                 }

npa/src/npa-tool.ggo.in

@@ -189,8 +189,10 @@ option "write-dg21"      -
 
 section "Verification of validity, age and community ID"
 option "verify-validity"    -
-    "Verify the chip's validity"
-    flag off
+    "Verify the chip's validity with a reference date"
+    string
+    typestr="YYYYMMDD"
+    optional
 option "older-than"     -
     "Verify age with a reference date"
     string