ECDSA_OFFSET
int ret, sent = ECDSA_OFFSET;
header_len = ECDSA_OFFSET + ECDSA_HEADER_LEN;
if (fw.buf[ECDSA_OFFSET] != 0x06) {
if (le32dec(fw.buf + ECDSA_OFFSET + CSS_HEADER_OFFSET) != 0x00020000) {