from nx_crypto_ecdsa.h:96
UINT _nx_crypto_ecdsa_verify(NX_CRYPTO_EC *curve,
UCHAR *hash,
UINT hash_length,
UCHAR *public_key,
UINT public_key_length,
UCHAR *signature,
UINT signature_length,
HN_UBASE *scratch);
Implemented in nx_crypto_ecdsa.c:316