esp-idf/components/micro-ecc/uECC_verify_antifault.h

/* Copyright 2014, Kenneth MacKay. Licensed under the BSD 2-clause license.

   Modifications Copyright 2020, Espressif Systems (Shanghai) PTE LTD. Licensed under the BSD
   2-clause license.
*/
#pragma once
#include "uECC.h"

/* Version uECC_verify() that also copies message_hash to verified_hash
   if the signature is valid, and does it in a way that is harder to attack
   with fault injection.
*/
int uECC_verify_antifault(const uint8_t *public_key,
                          const uint8_t *message_hash,
                          unsigned hash_size,
                          const uint8_t *signature,
                          uECC_Curve curve,
                          uint8_t *verified_hash);