MBEDTLS_PSA_INJECT_ENTROPY: check the seed file UID
The seed file UID is part of the library's stable interface.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/suites/test_suite_psa_crypto_entropy.function b/tests/suites/test_suite_psa_crypto_entropy.function
index 5184611..973740d 100644
--- a/tests/suites/test_suite_psa_crypto_entropy.function
+++ b/tests/suites/test_suite_psa_crypto_entropy.function
@@ -33,6 +33,12 @@
*/
int check_random_seed_file(size_t expected_size)
{
+ /* The value of the random seed UID must not change. Otherwise that would
+ * break upgrades of the library on devices that already contain a seed
+ * file. If this test assertion fails, you've presumably broken backward
+ * compatibility! */
+ TEST_EQUAL(PSA_CRYPTO_ITS_RANDOM_SEED_UID, 0xFFFFFF52);
+
struct psa_storage_info_t info = { 0, 0 };
psa_status_t status = psa_its_get_info(PSA_CRYPTO_ITS_RANDOM_SEED_UID,
&info);