Fixed lsign using v3 problem

2 files changed, 16 insertions, 0 deletions

diff --git a/g10/ChangeLog b/g10/ChangeLog
index 85a66e75f..9966c4199 100644
--- a/g10/ChangeLog
+++ b/g10/ChangeLog
@@ -1,3 +1,8 @@
+2001-07-27  Werner Koch  <[email protected]>
+
+	* keyedit.c (sign_uids): Check that we are not trying to to a
+	lsign with a pre-v4 key.  Bug noticed by Thomas Roessler.
+
 2001-07-26  Werner Koch  <[email protected]>
 
 	* parse-packet.c (parse_photo_id): Reset all variables.
diff --git a/g10/keyedit.c b/g10/keyedit.c
index 8b6386f71..565e9994e 100644
--- a/g10/keyedit.c
+++ b/g10/keyedit.c
@@ -282,6 +282,17 @@ sign_uids( KBNODE keyblock, STRLIST locusr, int *ret_modified, int local )
     if( rc )
 	goto leave;
 
+    if (local) {
+        for( sk_rover = sk_list; sk_rover; sk_rover = sk_rover->next ) {
+            if (sk_rover->sk->version < 4) {
+                tty_printf ("Local only signing not possible "
+                            "due to an old style key\n");
+                rc = G10ERR_UNU_SECKEY;
+                goto leave;
+            }
+        }
+    }
+
     /* loop over all signaturs */
     for( sk_rover = sk_list; sk_rover; sk_rover = sk_rover->next ) {
 	u32 sk_keyid[2];