Crypto: Add support for key APIs for HUK
Adds support for the psa_open_key and psa_close_key APIs only when the
key identifier corresponds to the HUK. Also makes it possible to derive
another key from the HUK by calling the PSA key derivation functions
with the HUK key handle as the input key.
Change-Id: I6992daaca76b87412b334a852383b2221a5181a9
Signed-off-by: Jamie Fox <jamie.fox@arm.com>
diff --git a/interface/include/tfm_crypto_defs.h b/interface/include/tfm_crypto_defs.h
index 91af175..5a380c6 100644
--- a/interface/include/tfm_crypto_defs.h
+++ b/interface/include/tfm_crypto_defs.h
@@ -59,6 +59,8 @@
*/
enum {
TFM_CRYPTO_ALLOCATE_KEY_SID = (0u),
+ TFM_CRYPTO_OPEN_KEY_SID,
+ TFM_CRYPTO_CLOSE_KEY_SID,
TFM_CRYPTO_IMPORT_KEY_SID,
TFM_CRYPTO_DESTROY_KEY_SID,
TFM_CRYPTO_GET_KEY_INFORMATION_SID,
@@ -117,6 +119,19 @@
#define TFM_CRYPTO_INVALID_HANDLE (0x0u)
/**
+ * \brief The persistent key identifier that refers to the hardware unique key.
+ *
+ */
+#define TFM_CRYPTO_KEY_ID_HUK (0xFFFF815Bu)
+
+/**
+ * \brief The algorithm identifier that refers to key derivation from the
+ * hardware unique key.
+ *
+ */
+#define TFM_CRYPTO_ALG_HUK_DERIVATION ((psa_algorithm_t)0xB0000F00)
+
+/**
* \brief Define miscellaneous literal constants that are used in the service
*
*/