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b399203e71
In this commit, we update the channel state machine to be aware of tweakless commits. In several areas, we'll now check the channel's type to see if it's `SingleFunderTweakless`. If so, then we'll opt to use the remote party's non-delay based point directly in the script, skipping any additional cryptographic operations. Along the way we move the `validateCommitmentSanity` method to be defined _before_ it's used as is cutomary within the codebase. Notably, within the `NewUnilateralCloseSummary` method, we'll now _blank out_ the `SingleTweak` value if the commitment is tweakless. This indicates to callers the witness type they should map to, as the value isn't needed at all any longer when sweeping a non-delay output. We also update the signing+verification tests to also test that we're able to properly generate a valid witness for the new tweakless commitment format. |
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|---|---|---|
| .. | ||
| btcwallet | ||
| channel_test.go | ||
| channel.go | ||
| commit_sort_test.go | ||
| commit_sort.go | ||
| config.go | ||
| errors.go | ||
| fee_estimator_test.go | ||
| fee_estimator.go | ||
| interface_test.go | ||
| interface.go | ||
| log.go | ||
| parameters.go | ||
| README.md | ||
| reservation.go | ||
| sigpool.go | ||
| size_test.go | ||
| test_utils.go | ||
| transactions_test.go | ||
| transactions.go | ||
| wallet_test.go | ||
| wallet.go | ||
lnwallet
The lnwallet package implements an abstracted wallet controller that is able to drive channel funding workflows, a number of script utilities, witness generation functions for the various Lightning scripts, revocation key derivation, and the commitment update state machine.
The package is used within lnd as the core wallet of the daemon. The wallet
itself is composed of several distinct interfaces that decouple the
implementation of things like signing and blockchain access. This separation
allows new WalletController implementations to be easily dropped into
lnd without disrupting the code base. A series of integration tests at the
interface level are also in place to ensure conformance of the implementation
with the interface.
Installation and Updating
$ go get -u github.com/lightningnetwork/lnd/lnwallet