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Copyright 2019,2020 NXP
.. highlight:: bat
.. _ex-sss-hmac:
=======================================================================
HMAC Example
=======================================================================
This project demonstrates a HMAC operation on a message using SSS APIs.
Refer - :file:`simw-top/sss/ex/hmac/ex_sss_hmac.c`
Prerequisites
=======================================================================
- Build Plug & Trust middleware stack. (Refer :ref:`building`)
About the Example
=======================================================================
This example does a HMAC operation on input data.
It uses the following APIs and data types:
- :cpp:func:`sss_mac_context_init()`
- :cpp:enumerator:`kAlgorithm_SSS_HMAC_SHA256` from :cpp:type:`sss_algorithm_t`
- :cpp:enumerator:`kMode_SSS_Mac` from :cpp:type:`sss_mode_t`
- :cpp:func:`sss_mac_one_go()`
Console output
=======================================================================
If everything is successful, the output will be similar to:
.. literalinclude:: out_ex_hmac.rst.txt
:start-after: sss :WARN :!!!Not recommended for production use.!!!