.. _algorithm_of_error_detection_and_correction_ecc_dsa:

Algorithm of error detection and correction ECC-DSA
======================================================================================================

Overview
--------

**ecc_dsa_example**  the example project shows the implementation of error detection and correction algorithm ECC.
- The error detection and correction algorithm of this project adopts ECC DSA 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 ECC-DSA tests:
   Performing cavp_sign test:
   Test #1: ECDSAsign NIST-p256, SHA2-256
     Vector #00 check sig.r - success
     Vector #00 check sig.s - success
     Vector #01 check sig.r - success
     Vector #01 check sig.s - success
     Vector #02 check sig.r - success
     Vector #02 check sig.s - success
     Vector #03 check sig.r - success
     Vector #03 check sig.s - success
     Vector #04 check sig.r - success
     Vector #04 check sig.s - success
     Vector #05 check sig.r - success
     Vector #05 check sig.s - success
     Vector #06 check sig.r - success
     Vector #06 check sig.s - success
     Vector #07 check sig.r - success
     Vector #07 check sig.s - success
     Vector #08 check sig.r - success
     Vector #08 check sig.s - success
     Vector #09 check sig.r - success
     Vector #09 check sig.s - success
     Vector #10 check sig.r - success
     Vector #10 check sig.s - success
     Vector #11 check sig.r - success
     Vector #11 check sig.s - success
     Vector #12 check sig.r - success
     Vector #12 check sig.s - success
     Vector #13 check sig.r - success
     Vector #13 check sig.s - success
     Vector #14 check sig.r - success
     Vector #14 check sig.s - success
   ===================================================================
   PASS - sign_vectors.
   Performing cavp_verify test:
   Test #2: ECDSAvrfy NIST-p256, SHA2-256
     Vector #00 check F (3 - S changed) - success (3=3)
     Vector #01 check F (2 - R changed) - success (2=2)
     Vector #02 check F (4 - Q changed) - success (4=4)
     Vector #03 check P (0 ) - success (0=0)
     Vector #04 check P (0 ) - success (0=0)
     Vector #05 check F (2 - R changed) - success (2=2)
     Vector #06 check F (4 - Q changed) - success (4=4)
     Vector #07 check F (1 - Message changed) - success (1=1)
     Vector #08 check F (3 - S changed) - success (3=3)
     Vector #09 check F (2 - R changed) - success (2=2)
     Vector #10 check F (3 - S changed) - success (3=3)
     Vector #11 check F (1 - Message changed) - success (1=1)
     Vector #12 check F (4 - Q changed) - success (4=4)
     Vector #13 check F (1 - Message changed) - success (1=1)
     Vector #14 check P (0 ) - success (0=0)
   ===================================================================
   PASS - vrfy_vectors.
   Performing montecarlo_signverify test:
   Test #3: Monte Carlo (10 Randomized EC-DSA signatures) NIST-p256, SHA2-256
     ....................
   >
   > All ECC-DSA tests succeeded.
   > ===================================================================
   > PASS - main.
   > ===================================================================
   > PROJECT EXECUTION SUCCESSFUL