+ /**
+ * Constructs a KeysManager from a 32-byte seed. If the seed is in some way biased (eg your
+ * CSRNG is busted) this may panic (but more importantly, you will possibly lose funds).
+ * starting_time isn't strictly required to actually be a time, but it must absolutely,
+ * without a doubt, be unique to this instance. ie if you start multiple times with the same
+ * seed, starting_time must be unique to each run. Thus, the easiest way to achieve this is to
+ * simply use the current time (with very high precision).
+ *
+ * The seed MUST be backed up safely prior to use so that the keys can be re-created, however,
+ * obviously, starting_time should be unique every time you reload the library - it is only
+ * used to generate new ephemeral key data (which will be stored by the individual channel if
+ * necessary).
+ *
+ * Note that the seed is required to recover certain on-chain funds independent of
+ * ChannelMonitor data, though a current copy of ChannelMonitor data is also required for any
+ * channel, and some on-chain during-closing funds.
+ *
+ * Note that until the 0.1 release there is no guarantee of backward compatibility between
+ * versions. Once the library is more fully supported, the docs will be updated to include a
+ * detailed description of the guarantee.
+ */
+ public static KeysManager of(byte[] seed, long starting_time_secs, int starting_time_nanos) {
+ long ret = bindings.KeysManager_new(seed, starting_time_secs, starting_time_nanos);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ KeysManager ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new KeysManager(null, ret); }
+ ret_hu_conv.ptrs_to.add(ret_hu_conv);
+ return ret_hu_conv;
+ }
+
+ /**
+ * Derive an old Sign containing per-channel secrets based on a key derivation parameters.
+ *
+ * Key derivation parameters are accessible through a per-channel secrets
+ * Sign::channel_keys_id and is provided inside DynamicOuputP2WSH in case of
+ * onchain output detection for which a corresponding delayed_payment_key must be derived.
+ */
+ public InMemorySigner derive_channel_keys(long channel_value_satoshis, byte[] params) {
+ long ret = bindings.KeysManager_derive_channel_keys(this.ptr, channel_value_satoshis, params);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ InMemorySigner ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new InMemorySigner(null, ret); }
+ ret_hu_conv.ptrs_to.add(this);