Added KEY_WRAPPING flag that allows a key to be used for wrapping other keys.

Only superuser can enable this flag. Prevent short keys to wrap longer ones. Added initial stuff
for supporting wrapping of private and public keys.

1 files changed, 12 insertions, 0 deletions

diff --git a/ncr-dh.c b/ncr-dh.c
index 235d021..04df2b3 100644
--- a/ncr-dh.c
+++ b/ncr-dh.c
@@ -281,3 +281,15 @@ fail:
 	
 	return ret;
 }	
+
+int ncr_pk_get_dh_size( dh_key* key)
+{
+int ret;
+	ret = mp_count_bits(&key->p);
+	if (ret <= 0) {
+		err();
+		return -EINVAL;
+	}
+	
+	return ret;
+}