RSP_DATA_IDX
memcpy(public_key, &cmd->data[RSP_DATA_IDX], ATMEL_ECC_PUBKEY_SIZE);
&cmd->data[RSP_DATA_IDX], n_sz);
#define LOCK_VALUE_IDX (RSP_DATA_IDX + 2)
#define LOCK_CONFIG_IDX (RSP_DATA_IDX + 3)