commit 4747d19d1852fae077b161513c59c083df89270a
author Gilles Peskine <Gilles.Peskine@arm.com> Wed Apr 17 15:05:45 2019 +0200
committer Gilles Peskine <Gilles.Peskine@arm.com> Wed Apr 24 15:45:50 2019 +0200
tree c230459412daf263fbfedf3d1130df7851e058e6
parent 87a5e565f4bda3749f20be3ad8d175caefe2d922

Implement atomic-creation psa_import_key

Implement the new, attribute-based psa_import_key and some basic
functions to access psa_key_attributes_t. Replace
psa_import_key_to_handle by psa_import_key in a few test functions.

This commit does not handle persistence attributes yet.

include/psa/crypto.h

diff --git a/include/psa/crypto.h b/include/psa/crypto.h
index 564dd87..74a36b0 100644
--- a/include/psa/crypto.h
+++ b/include/psa/crypto.h
@@ -109,6 +109,39 @@
  */
 typedef struct psa_key_attributes_s psa_key_attributes_t;
 
+static void psa_make_key_persistent(psa_key_attributes_t *attributes,
+                                    psa_key_id_t id,
+                                    psa_key_lifetime_t lifetime);
+
+static psa_key_id_t psa_get_key_id(const psa_key_attributes_t *attributes);
+
+static psa_key_lifetime_t psa_get_key_lifetime(
+    const psa_key_attributes_t *attributes);
+
+static void psa_set_key_usage_flags(psa_key_attributes_t *attributes,
+                                    psa_key_usage_t usage_flags);
+
+static psa_key_usage_t psa_get_key_usage_flags(
+    const psa_key_attributes_t *attributes);
+
+static void psa_set_key_algorithm(psa_key_attributes_t *attributes,
+                                  psa_algorithm_t alg);
+
+static psa_algorithm_t psa_get_key_algorithm(
+    const psa_key_attributes_t *attributes);
+
+static void psa_set_key_type(psa_key_attributes_t *attributes,
+                             psa_key_type_t type);
+
+static psa_key_type_t psa_get_key_type(const psa_key_attributes_t *attributes);
+
+static size_t psa_get_key_bits(const psa_key_attributes_t *attributes);
+
+psa_status_t psa_get_key_attributes(psa_key_handle_t handle,
+                                    psa_key_attributes_t *attributes);
+
+psa_status_t psa_reset_key_attributes(psa_key_attributes_t *attributes);
+
 /**@}*/
 
 /** \defgroup policy Key policies
@@ -380,7 +413,6 @@
  */
 psa_status_t psa_import_key(const psa_key_attributes_t *attributes,
                             psa_key_handle_t *handle,
-                            psa_key_type_t type,
                             const uint8_t *data,
                             size_t data_length);
 
@@ -2970,7 +3002,6 @@
  */
 psa_status_t psa_generator_import_key(const psa_key_attributes_t *attributes,
                                       psa_key_handle_t *handle,
-                                      psa_key_type_t type,
                                       size_t bits,
                                       psa_crypto_generator_t *generator);
 
@@ -3363,7 +3394,6 @@
  */
 psa_status_t psa_generate_key(const psa_key_attributes_t *attributes,
                               psa_key_handle_t *handle,
-                              psa_key_type_t type,
                               size_t bits,
                               const void *extra,
                               size_t extra_size);

include/psa/crypto_struct.h

diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index 6eed259..16674d4 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -260,4 +260,56 @@
     return( v );
 }
 
+struct psa_key_attributes_s
+{
+    psa_key_id_t id;
+    psa_key_lifetime_t lifetime;
+    psa_key_policy_t policy;
+    psa_key_type_t type;
+    size_t bits;
+};
+
+#define PSA_KEY_ATTRIBUTES_INIT {0, 0, {0, 0}, 0, 0}
+static inline struct psa_key_attributes_s psa_key_attributes_init( void )
+{
+    const struct psa_key_attributes_s v = PSA_KEY_ATTRIBUTES_INIT;
+    return( v );
+}
+
+static inline void psa_set_key_usage_flags(psa_key_attributes_t *attributes,
+                                           psa_key_usage_t usage_flags)
+{
+    attributes->policy.usage = usage_flags;
+}
+
+static inline psa_key_usage_t psa_get_key_usage_flags(
+    const psa_key_attributes_t *attributes)
+{
+    return( attributes->policy.usage );
+}
+
+static inline void psa_set_key_algorithm(psa_key_attributes_t *attributes,
+                                         psa_algorithm_t alg)
+{
+    attributes->policy.alg = alg;
+}
+
+static inline psa_algorithm_t psa_get_key_algorithm(
+    const psa_key_attributes_t *attributes)
+{
+    return( attributes->policy.alg );
+}
+
+static inline void psa_set_key_type(psa_key_attributes_t *attributes,
+                                    psa_key_type_t type)
+{
+    attributes->type = type;
+}
+
+static inline psa_key_type_t psa_get_key_type(
+    const psa_key_attributes_t *attributes)
+{
+    return( attributes->type );
+}
+
 #endif /* PSA_CRYPTO_STRUCT_H */