Overview
========
The ELS PKC application provides examples which demonstrate usage of most available algorithms and a crypto library lightweight testing:
- AES-128/192/256 encryption/decryption, modes ECB/CBC/CTR/GCM/CMAC
- SHA2-224/256/384/512 (including sha-direct mode)
- KDF: CKDF (NIST SP 800-108 / SP800-56C), HKDF (RFC5869)
- HMAC
- ECC Sign/Verify/Keygen/Keyexchange (P-256)
- RFC3394 key wrapping/unwrapping
- Key Import/Export/Utilities/Provisioning
- Random number Generation (DRBG/PRNG)

Toolchain supported
===================
- Keil MDK  5.38.1
- IAR embedded Workbench  9.40.1
- GCC ARM Embedded  12.2
- MCUXpresso  11.8.0

Hardware requirements
=====================
- Mini/micro USB cable
- LPCXpresso55S36 board
- Personal Computer

Board settings
==============

Prepare the Demo
================
1.  Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J1) on the board
2.  Open a serial terminal with the following settings (See Appendix A in Getting started guide for description how to determine serial port number):
    - 115200 baud rate
    - 8 data bits
    - No parity
    - One stop bit
    - No flow control
3.  Download the program to the target board.
4.  Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Running the demo
================
The log below shows the output of the ELS (Crypto Sub System) and PKC (Public-Key Crypto Coprocessor) demo in the terminal window:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ELS PKC symmetric cipher example

AES128-CBC encryption:pass
AES128-ECB encryption:pass
CMAC AES128:pass 

RESULT: All 3 test PASS!!
ELS example END
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
