+ public static interface KeysInterfaceInterface {
+ /**
+ * Get node secret key (aka node_id or network_key).
+ *
+ * This method must return the same value each time it is called.
+ */
+ byte[] get_node_secret();
+ /**
+ * Get a script pubkey which we send funds to when claiming on-chain contestable outputs.
+ *
+ * This method should return a different value each time it is called, to avoid linking
+ * on-chain funds across channels as controlled to the same user.
+ */
+ byte[] get_destination_script();
+ /**
+ * Get a script pubkey which we will send funds to when closing a channel.
+ *
+ * This method should return a different value each time it is called, to avoid linking
+ * on-chain funds across channels as controlled to the same user.
+ */
+ ShutdownScript get_shutdown_scriptpubkey();
+ /**
+ * Get a new set of Sign for per-channel secrets. These MUST be unique even if you
+ * restarted with some stale data!
+ *
+ * This method must return a different value each time it is called.
+ */
+ Sign get_channel_signer(boolean inbound, long channel_value_satoshis);
+ /**
+ * Gets a unique, cryptographically-secure, random 32 byte value. This is used for encrypting
+ * onion packets and for temporary channel IDs. There is no requirement that these be
+ * persisted anywhere, though they must be unique across restarts.
+ *
+ * This method must return a different value each time it is called.
+ */
+ byte[] get_secure_random_bytes();
+ /**
+ * Reads a `Signer` for this `KeysInterface` from the given input stream.
+ * This is only called during deserialization of other objects which contain
+ * `Sign`-implementing objects (ie `ChannelMonitor`s and `ChannelManager`s).
+ * The bytes are exactly those which `<Self::Signer as Writeable>::write()` writes, and
+ * contain no versioning scheme. You may wish to include your own version prefix and ensure
+ * you've read all of the provided bytes to ensure no corruption occurred.
+ */
+ Result_SignDecodeErrorZ read_chan_signer(byte[] reader);
+ /**
+ * Sign an invoice's preimage (note that this is the preimage of the invoice, not the HTLC's
+ * preimage). By parameterizing by the preimage instead of the hash, we allow implementors of
+ * this trait to parse the invoice and make sure they're signing what they expect, rather than
+ * blindly signing the hash.
+ */
+ Result_RecoverableSignatureNoneZ sign_invoice(byte[] invoice_preimage);
+ }
+ private static class LDKKeysInterfaceHolder { KeysInterface held; }
+ public static KeysInterface new_impl(KeysInterfaceInterface arg) {
+ final LDKKeysInterfaceHolder impl_holder = new LDKKeysInterfaceHolder();
+ impl_holder.held = new KeysInterface(new bindings.LDKKeysInterface() {
+ @Override public byte[] get_node_secret() {
+ byte[] ret = arg.get_node_secret();
+ byte[] result = InternalUtils.check_arr_len(ret, 32);
+ return result;
+ }
+ @Override public byte[] get_destination_script() {
+ byte[] ret = arg.get_destination_script();
+ return ret;
+ }
+ @Override public long get_shutdown_scriptpubkey() {
+ ShutdownScript ret = arg.get_shutdown_scriptpubkey();
+ long result = ret == null ? 0 : ret.clone_ptr();
+ return result;
+ }
+ @Override public long get_channel_signer(boolean inbound, long channel_value_satoshis) {
+ Sign ret = arg.get_channel_signer(inbound, channel_value_satoshis);
+ long result = ret == null ? 0 : ret.clone_ptr();
+ impl_holder.held.ptrs_to.add(ret);
+ return result;
+ }
+ @Override public byte[] get_secure_random_bytes() {
+ byte[] ret = arg.get_secure_random_bytes();
+ byte[] result = InternalUtils.check_arr_len(ret, 32);
+ return result;
+ }
+ @Override public long read_chan_signer(byte[] reader) {
+ Result_SignDecodeErrorZ ret = arg.read_chan_signer(reader);
+ long result = ret == null ? 0 : ret.clone_ptr();
+ return result;
+ }
+ @Override public long sign_invoice(byte[] invoice_preimage) {
+ Result_RecoverableSignatureNoneZ ret = arg.sign_invoice(invoice_preimage);
+ long result = ret == null ? 0 : ret.clone_ptr();
+ return result;
+ }
+ });
+ return impl_holder.held;
+ }
+ /**
+ * Get node secret key (aka node_id or network_key).
+ *
+ * This method must return the same value each time it is called.
+ */