- Added cert_app application

diff --git a/programs/CMakeLists.txt b/programs/CMakeLists.txt
index a11929a..f73b645 100644
--- a/programs/CMakeLists.txt
+++ b/programs/CMakeLists.txt
@@ -3,3 +3,4 @@
 add_subdirectory(pkey)
 add_subdirectory(ssl)
 add_subdirectory(test)
+add_subdirectory(x509)