zephyr/samples/drivers/crypto
Keith Packard 0b90fd5adf samples, tests, boards: Switch main return type from void to int
As both C and C++ standards require applications running under an OS to
return 'int', adapt that for Zephyr to align with those standard. This also
eliminates errors when building with clang when not using -ffreestanding,
and reduces the need for compiler flags to silence warnings for both clang
and gcc.

Most of these changes were automated using coccinelle with the following
script:

@@
@@
- void
+ int
main(...) {
	...
-	return;
+	return 0;
	...
}

Approximately 40 files had to be edited by hand as coccinelle was unable to
fix them.

Signed-off-by: Keith Packard <keithp@keithp.com>
2023-04-14 07:49:41 +09:00
..
src samples, tests, boards: Switch main return type from void to int 2023-04-14 07:49:41 +09:00
CMakeLists.txt
prj_mtls_shim.conf
prj_nrf_ecb.conf crypto: remove proj setting of crypto drivers 2022-08-30 10:43:12 +00:00
prj_stm32.conf
prj.conf
README.rst
sample.yaml

.. _crypto_sample:

Crypto
######

Overview
********
An example to illustrate the usage of crypto APIs.

Building and Running
********************

This project outputs to the console.  It can be built and executed
on QEMU as follows:

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/crypto
   :host-os: unix
   :board: qemu_x86
   :goals: run
   :compact:

Sample Output
=============

.. code-block:: console

    [general] [INF] main: Encryption Sample

    [general] [INF] cbc_mode: CBC Mode

    [general] [INF] cbc_mode: cbc mode ENCRYPT - Match

    [general] [INF] cbc_mode: cbc mode DECRYPT - Match

    [general] [INF] ctr_mode: CTR Mode

    [general] [INF] ctr_mode: ctr mode ENCRYPT - Match

    [general] [INF] ctr_mode: ctr mode DECRYPT - Match

    [general] [INF] ccm_mode: CCM Mode

    [general] [INF] ccm_mode: CCM mode ENCRYPT - Match

    [general] [INF] ccm_mode: CCM mode DECRYPT - Match

Exit QEMU by pressing :kbd:`CTRL+A` :kbd:`x`.