Increase blinded path expiry #718
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Blinded paths should expire when we will start rejecting payments for the corresponding invoice: this is thus related to the bolt 12 invoice expiry that we used. However, when we receive an HTLC, its `cltv_expiry` is set to a future block height, which must be at least `min_final_expiry_delta` in the future. Payers may add some additional margin to the current block height to protect against delays in HTLC relay and protect the privacy of the payment. So we must add a large enough `cltv_expiry_delta` to the invoice expiry to account for those.
We add a helper function to decrypt the `pathId` included in the invoice's blinded path.
thomash-acinq
approved these changes
Oct 17, 2024
pm47
added a commit
to ACINQ/phoenixd
that referenced
this pull request
Oct 17, 2024
This is a bugfix release, the main change is ACINQ/lightning-kmp#718.
vincenzopalazzo
pushed a commit
to vincenzopalazzo/phoenixd
that referenced
this pull request
Nov 7, 2024
This is a bugfix release, the main change is ACINQ/lightning-kmp#718.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Blinded paths should expire when we will start rejecting payments for the corresponding invoice: this is thus related to the bolt 12 invoice expiry that we used.
However, when we receive an HTLC, its
cltv_expiryis set to a future block height, which must be at leastmin_final_expiry_deltain the future. Payers may add some additional margin to the current block height to protect against delays in HTLC relay and protect the privacy of the payment. So we must add a large enoughcltv_expiry_deltato the invoice expiry to account for those.