.. _sha_hmac_algorithm:

SHA-HMAC algorithm
====================================

Overview
--------

**sha256_hmac_example**  the example project shows the implementation of Sha algorithm HMAC key message integrity verification method.
- The algorithm of this project adopts HMAC sha256 method to complete the module encryption and decryption test.

Board Setting
-------------

- No special settings

Running the example
-------------------

When the project runs correctly, and the serial port terminal will output the following information:

.. code-block:: console

   tc_start() - Performing HMAC tests (RFC4231 test vectors):
   HMAC test_1:
   ===================================================================
   PASS - test_1.
   HMAC test_2:
   ===================================================================
   PASS - test_2.
   HMAC test_3:
   ===================================================================
   PASS - test_3.
   HMAC test_4:
   ===================================================================
   PASS - test_4.
   HMAC test_5:
   ===================================================================
   PASS - test_5.
   HMAC test_6:
   ===================================================================
   PASS - test_6.
   HMAC test_7:
   ===================================================================
   PASS - test_7.
   All HMAC tests succeeded!
   ===================================================================
   PASS - main.
   ===================================================================
   PROJECT EXECUTION SUCCESSFUL