Crate dlc

Rust DLC Library

Library for creating, signing and verifying transactions for the Discreet Log Contract protocol.

Modules

channel

Module for working with DLC channels

secp_utils

Crypto utilities providing necessary DLC specific functions not available in rust-secp256k1 or rust-secp256k1-zkp.

util

Utility functions not uniquely related to DLC

Structs

DlcTransactions

Contains the necessary transactions for establishing a DLC

EnumerationPayout

Representation of a payout for an enumeration outcome.

OracleInfo

Structure containing oracle information for a single event.

PartyParams

Contains the parameters required for creating DLC transactions for a single party. Specifically these are the common fields between Offer and Accept messages.

Payout

Represents the payouts for a unique contract outcome. Offer party represents the initiator of the contract while accept party represents the party accepting the contract.

RangePayout

Representation of a set of contiguous outcomes that share a single payout.

TxInputInfo

Contains info about a utxo used for funding a DLC contract

Enums

Error

An error code.

Constants

P2WPKH_WITNESS_SIZE

The witness size of a P2WPKH input See: https://github.com/discreetlogcontracts/dlcspecs/blob/master/Transactions.md#fees

Functions

create_cet

Create a contract execution transaction

create_cet_adaptor_sig_from_oracle_info

Create an adaptor signature for the given cet using the provided oracle infos.

create_cet_adaptor_sig_from_point

Create an adaptor signature for the given cet using the provided adaptor point.

create_cet_adaptor_sigs_from_oracle_info

Crerate a set of adaptor signatures for the given cet/message pairs.

create_cet_adaptor_sigs_from_points

Crerate a set of adaptor signatures for the given cet/message pairs.

create_cets

Create a set of contract execution transaction for each provided outcome

create_dlc_transactions

Create the transactions for a DLC contract based on the provided parameters

create_funding_transaction

Create a funding transaction

create_refund_transaction

Create a refund transaction

get_adaptor_point_from_oracle_info

Get an adaptor point generated using the given oracle information and messages.

make_funding_redeemscript

Create the multisig redeem script for the funding output

sign_cet

Sign the given cet using own private key, adapt the counter party signature and place both signatures and the funding multi sig script pubkey on the witness stack

verify_cet_adaptor_sig_from_oracle_info

Verify that a given adaptor signature for a given cet is valid with respect to an oracle public key, nonce and a given message.

verify_cet_adaptor_sig_from_point

Verify that a given adaptor signature for a given cet is valid with respect to an adaptor point.

verify_tx_input_sig

Verify a signature for a given transaction input.