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2023-08-09 14:18:15

Bitcoin Optech on Nostr: Bitcoin Optech newsletter #263 is here: - warns about a vulnerability in uses of ...

Bitcoin Optech newsletter #263 is here:

- warns about a vulnerability in uses of Libbitcoin’s bx tool
- summarizes discussion about the design of DoS protection
- announces a plan to begin testing and collecting data about HTLC endorsement
- describes two proposed changes to Bitcoin Core’s tx relay policy
- recaps the "Silent Payments: Implement BIP352" PR Review Meeting
- Adds Topics for: Codex32, HTLC endorsement
- Optech Newsletter #263 Recap on Twitter Spaces
https://bitcoinops.org/en/newsletters/2023/08/09/

Severe Libbitcoin Bitcoin Explorer vulnerability: if you used the bx seed command to create BIP32 seeds, BIP39 mnemonics, private keys, or any other secure material, consider immediately moving any funds to a different secure address...
https://bitcoinops.org/en/newsletters/2023/08/09/#severe-libbitcoin-bitcoin-explorer-vulnerability

Anthony Towns posted to the Lightning-Dev mailing list in response to the channel jamming part of the notes for the recent LN developers meeting. Towns suggested an alternative to trying to price out attackers...
https://bitcoinops.org/en/newsletters/2023/08/09/#denial-of-service-dos-protection-design-philosophy

Carla Kirk-Cohen and Clara Shikhelman posted to the Lightning-Dev mailing list to announce that developers associated with Eclair, Core Lightning, and LND were implementing parts of the HTLC endorsement protocol in order to begin collecting data related to it...
https://bitcoinops.org/en/newsletters/2023/08/09/#htlc-endorsement-testing-and-data-collection

Peter Todd started two threads on the Bitcoin-Dev mailing list related to pull requests he’s opened to change Bitcoin Core’s default relay policy...
https://bitcoinops.org/en/newsletters/2023/08/09/#proposed-changes-to-bitcoin-core-default-relay-policy

Several security researchers investigating a recent loss of bitcoins among users of Libbitcoin discovered that program’s Bitcoin Explorer (bx) tool’s seed command only generated about 4 billion different unique values...
https://bitcoinops.org/en/newsletters/2023/08/09/#libbitcoin-bitcoin-explorer-security-disclosure

‘Silent Payments: Implement BIP352’ is a PR by josibake that takes the first step in adding silent payments to the Bitcoin Core wallet...
https://bitcoinops.org/en/newsletters/2023/08/09/#bitcoin-core-pr-review-club

Codex32 is an encoding designed for BIP32 seeds that is convenient to store on paper. It supports relatively simple processes for creating a seed, encoding that seed, splitting the seed into parts, and verifying the integrity of partial or full seed backups...
https://bitcoinops.org/en/topics/codex32/

HTLC endorsement is a reputation system proposed for LN. When a node receives a payment (HTLC) from a channel counterparty for forwarding, that payment may be flagged as endorsed...
https://bitcoinops.org/en/topics/htlc-endorsement/

Bitcoin Optech will be hosting an audio recap discussion of this newsletter with special guests Clara Shikhelman, Josie Baker, and Peter Todd on Twitter Spaces Thursday at 15:00 UTC. Join us to discuss or ask questions!
https://twitter.com/i/spaces/1RDGlayOZDRJL
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