commit f9fbc38e66fbd6ee0a375e3ff43df2370c3502f1
author Gilles Peskine <Gilles.Peskine@arm.com> Wed May 15 18:42:09 2019 +0200
committer Gilles Peskine <Gilles.Peskine@arm.com> Wed May 15 18:42:09 2019 +0200
tree bae2731f0258abcb9a215362803df7478092e275
parent f9666595e147cdb9efcc680cc39d9653f3a61f4c

Declare key id 0 as invalid

In keeping with other integral types, declare 0 to be an invalid key
identifier.

Documented, implemented and tested.

include/psa/crypto_values.h

diff --git a/include/psa/crypto_values.h b/include/psa/crypto_values.h
index 40172b3..2ee8839 100644
--- a/include/psa/crypto_values.h
+++ b/include/psa/crypto_values.h
@@ -1442,7 +1442,7 @@
 
 /** The minimum value for a key identifier chosen by the application.
  */
-#define PSA_KEY_ID_USER_MIN                     ((psa_key_id_t)0x00000000)
+#define PSA_KEY_ID_USER_MIN                     ((psa_key_id_t)0x00000001)
 /** The minimum value for a key identifier chosen by the application.
  */
 #define PSA_KEY_ID_USER_MAX                     ((psa_key_id_t)0x3fffffff)