diff --git a/include/drivers/auth/auth_mod.h b/include/drivers/auth/auth_mod.h
index 74fc15f..bb3b8f9 100644
--- a/include/drivers/auth/auth_mod.h
+++ b/include/drivers/auth/auth_mod.h
@@ -44,6 +44,9 @@
 			(const auth_img_desc_t *const)&_cot[0]; \
 	unsigned int auth_img_flags[MAX_NUMBER_IDS]
 
+extern const auth_img_desc_t *const cot_desc_ptr;
+extern unsigned int auth_img_flags[MAX_NUMBER_IDS];
+
 #endif /* TRUSTED_BOARD_BOOT */
 
 #endif /* __AUTH_MOD_H__ */
diff --git a/include/drivers/auth/crypto_mod.h b/include/drivers/auth/crypto_mod.h
index 7a1b6b8..f9b44d1 100644
--- a/include/drivers/auth/crypto_mod.h
+++ b/include/drivers/auth/crypto_mod.h
@@ -57,4 +57,6 @@
 		.verify_hash = _verify_hash \
 	}
 
+extern const crypto_lib_desc_t crypto_lib_desc;
+
 #endif /* __CRYPTO_MOD_H__ */