1 theory All_Symmetric
2 imports Message
3 begin
4
5 text {* All keys are symmetric *}
6
7 defs all_symmetric_def: "all_symmetric \<equiv> True"
8
9 lemma isSym_keys: "K \<in> symKeys"
10 by (simp add: symKeys_def all_symmetric_def invKey_symmetric)
11
12 end