Use the driver version of private key generation

Author: Andrzej Kurek

atecc608a_utils.c

@@ -61,19 +61,3 @@ psa_status_t atecc608a_check_config_locked()
     }
     return status;
 }
-
-psa_status_t atecc608a_generate_key(uint16_t slot, uint8_t *pubkey, size_t pubkey_size)
-{
-    psa_status_t status = PSA_ERROR_GENERIC_ERROR;
-    if (pubkey != NULL && pubkey_size < ATCA_PUB_KEY_SIZE)
-    {
-       return PSA_ERROR_BUFFER_TOO_SMALL;
-    }
-
-    ASSERT_SUCCESS_PSA(atecc608a_init());
-    ASSERT_SUCCESS(atcab_genkey(slot, pubkey));
-
-exit:
-    atecc608a_deinit();
-    return status;
-}

atecc608a_utils.h

@@ -61,6 +61,4 @@ psa_status_t atecc608a_get_serial_number(uint8_t *buffer, size_t buffer_size,
 
 psa_status_t atecc608a_check_config_locked();
 
-psa_status_t atecc608a_generate_key(uint16_t slot, uint8_t *pubkey, size_t pubkey_size);
-
 #endif /* ATECC608A_SE_H */

main.c

@@ -147,7 +147,12 @@ int main(void)
 
     atecc608a_print_serial_number();
     atecc608a_print_config_zone();
-    ASSERT_SUCCESS_PSA(atecc608a_generate_key(atecc608a_key_slot_device, pubkey, pubkey_size));
+
+    ASSERT_SUCCESS_PSA(atecc608a_drv_info.p_key_management->p_generate(
+                         atecc608a_key_slot_device, keypair_type,
+                         PSA_KEY_USAGE_SIGN | PSA_KEY_USAGE_VERIFY,
+                         key_bits, NULL, 0, pubkey, pubkey_size, &pubkey_len));
+
     atcab_printbin_label("pubKey generated: ", pubkey, ATCA_PUB_KEY_SIZE);
 
     ASSERT_SUCCESS_PSA(atecc608a_hash_sha256(hash_input1,