import * as bindings from '../bindings.mjs'
+/**
+ * Simple KeysInterface implementor that takes a 32-byte seed for use as a BIP 32 extended key
+ * and derives keys from that.
+ *
+ * Your node_id is seed/0'
+ * ChannelMonitor closes may use seed/1'
+ * Cooperative closes may use seed/2'
+ * The two close keys may be needed to claim on-chain funds!
+ */
export class KeysManager extends CommonBase {
/* @internal */
public constructor(_dummy: object, ptr: number) {
super(ptr, bindings.KeysManager_free);
}
+ /**
+ * 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 constructor_new(seed: Uint8Array, starting_time_secs: bigint, starting_time_nanos: number): KeysManager {
const ret: number = bindings.KeysManager_new(bindings.encodeUint8Array(bindings.check_arr_len(seed, 32)), starting_time_secs, starting_time_nanos);
const ret_hu_conv: KeysManager = new KeysManager(null, ret);
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 derive_channel_keys(channel_value_satoshis: bigint, params: Uint8Array): InMemorySigner {
const ret: number = bindings.KeysManager_derive_channel_keys(this.ptr, channel_value_satoshis, bindings.encodeUint8Array(bindings.check_arr_len(params, 32)));
const ret_hu_conv: InMemorySigner = new InMemorySigner(null, ret);
return ret_hu_conv;
}
+ /**
+ * Creates a Transaction which spends the given descriptors to the given outputs, plus an
+ * output to the given change destination (if sufficient change value remains). The
+ * transaction will have a feerate, at least, of the given value.
+ *
+ * Returns `Err(())` if the output value is greater than the input value minus required fee or
+ * if a descriptor was duplicated.
+ *
+ * We do not enforce that outputs meet the dust limit or that any output scripts are standard.
+ *
+ * May panic if the `SpendableOutputDescriptor`s were not generated by Channels which used
+ * this KeysManager or one of the `InMemorySigner` created by this KeysManager.
+ */
public spend_spendable_outputs(descriptors: SpendableOutputDescriptor[], outputs: TxOut[], change_destination_script: Uint8Array, feerate_sat_per_1000_weight: number): Result_TransactionNoneZ {
const ret: number = bindings.KeysManager_spend_spendable_outputs(this.ptr, bindings.encodeUint32Array(descriptors != null ? descriptors.map(descriptors_conv_27 => CommonBase.get_ptr_of(descriptors_conv_27)) : null), bindings.encodeUint32Array(outputs != null ? outputs.map(outputs_conv_7 => CommonBase.get_ptr_of(outputs_conv_7)) : null), bindings.encodeUint8Array(change_destination_script), feerate_sat_per_1000_weight);
const ret_hu_conv: Result_TransactionNoneZ = Result_TransactionNoneZ.constr_from_ptr(ret);
return ret_hu_conv;
}
+ /**
+ * Constructs a new KeysInterface which calls the relevant methods on this_arg.
+ * This copies the `inner` pointer in this_arg and thus the returned KeysInterface must be freed before this_arg is
+ */
public as_KeysInterface(): KeysInterface {
const ret: number = bindings.KeysManager_as_KeysInterface(this.ptr);
const ret_hu_conv: KeysInterface = new KeysInterface(null, ret);