1(*  Author:     Lawrence C Paulson, Cambridge University Computer Laboratory
2    Copyright   1996  University of Cambridge
3*)
4
5section \<open>Blanqui's "guard" concept: protocol-independent secrecy\<close>
6
7theory Auth_Guard_Shared
8imports
9  Guard_OtwayRees
10  Guard_Yahalom
11begin
12
13end
14