Function bip32_pubkey

common/key_derive.c:253–269

bool bip32_pubkey(const struct ext_key *bip32_base,
		  struct pubkey *pubkey, u32 index)
{
	const uint32_t flags = BIP32_FLAG_KEY_PUBLIC | BIP32_FLAG_SKIP_HASH;
	struct ext_key ext;

	if (index >= BIP32_INITIAL_HARDENED_CHILD)
		return false;

	if (bip32_key_from_parent(bip32_base, index, flags, &ext) != WALLY_OK)
		return false;

	if (!secp256k1_ec_pubkey_parse(secp256k1_ctx, &pubkey->pubkey,
				       ext.pub_key, sizeof(ext.pub_key)))
		return false;
	return true;
}