Fix stupid bug in rsa_copy()
diff --git a/library/rsa.c b/library/rsa.c
index bf60c6f..5abf6f6 100644
--- a/library/rsa.c
+++ b/library/rsa.c
@@ -1381,7 +1381,7 @@
 #endif
 
     dst->padding = src->padding;
-    dst->hash_id = src->padding;
+    dst->hash_id = src->hash_id;
 
 cleanup:
     if( ret != 0 )