# \#lightning **URL:** https://delvingbitcoin.org/tag/lightning/4.md [Latest](https://delvingbitcoin.org/latest.md) · [Categories](https://delvingbitcoin.org/categories.md) · [Tags](https://delvingbitcoin.org/tags.md) --- ## [Towards A K-of-N Lightning Network Node](https://delvingbitcoin.org/t/towards-a-k-of-n-lightning-network-node/2395)
**Author:** [@ZmnSCPxj](https://delvingbitcoin.org/u/ZmnSCPxj)\ **Replies:** 11\ **Last updated:** [November 5, 2026, 12:34am UTC](https://delvingbitcoin.org/t/towards-a-k-of-n-lightning-network-node/2395 "2026-11-05T00:34:27Z")
Subject: Towards A K-of-N Lightning Network Node Z. jxPCSnmZ Introduction With the Nested MuSig2 Paper recently released, we want to consider: can we make a multisig self-custodial wallet with Lightning Network integra… --- ## [Forwardable Peerswap Incentives, And Closing Surreptitious Communications Tunnels](https://delvingbitcoin.org/t/forwardable-peerswap-incentives-and-closing-surreptitious-communications-tunnels/2917)
**Author:** [@ZmnSCPxj](https://delvingbitcoin.org/u/ZmnSCPxj)\ **Replies:** 3\ **Last updated:** [November 3, 2026, 10:02pm UTC](https://delvingbitcoin.org/t/forwardable-peerswap-incentives-and-closing-surreptitious-communications-tunnels/2917 "2026-11-03T22:02:07Z")
Subject: Forwardable Peerswap Incentives, And Closing Surreptitious Communications Tunnels Introduction Forwardable Peerswaps is a proposed protocol for managing Lightning Network liquidity. It has the following advant… --- ## [Vulnerability Disclosure: Twin Memory Exhaustion DoS Vulnerabilities in Core Lightning](https://delvingbitcoin.org/t/vulnerability-disclosure-twin-memory-exhaustion-dos-vulnerabilities-in-core-lightning/2731)
**Author:** [@Chand-ra](https://delvingbitcoin.org/u/Chand-ra)\ **Replies:** 2\ **Last updated:** [October 28, 2026, 2:34pm UTC](https://delvingbitcoin.org/t/vulnerability-disclosure-twin-memory-exhaustion-dos-vulnerabilities-in-core-lightning/2731 "2026-10-28T14:34:57Z")
Summary This post details two distinct Denial-of-Service (DoS) vulnerabilities discovered in Core Lightning (CLN). Both vulnerabilities allowed a remote peer to trigger unbounded memory growth, ultimately leading to Out-… --- ## [K-of-N threshhold key generation scheme by limited shared secrets](https://delvingbitcoin.org/t/k-of-n-threshhold-key-generation-scheme-by-limited-shared-secrets/2623)
**Author:** [@ZmnSCPxj](https://delvingbitcoin.org/u/ZmnSCPxj)\ **Replies:** 3\ **Last updated:** [October 27, 2026, 3:12pm UTC](https://delvingbitcoin.org/t/k-of-n-threshhold-key-generation-scheme-by-limited-shared-secrets/2623 "2026-10-27T15:12:02Z")
Introduction The FROST scheme is based on Verifiable Secret Sharing, where signers first perform Shamir Secret Sharing in homomorphic space, then each signer stores the generated share it has of the final key. However, … --- ## [SuperScalar: an implementation report](https://delvingbitcoin.org/t/superscalar-an-implementation-report/2705)
**Author:** [@8144225309](https://delvingbitcoin.org/u/8144225309)\ **Replies:** 2\ **Last updated:** [October 26, 2026, 8:37pm UTC](https://delvingbitcoin.org/t/superscalar-an-implementation-report/2705 "2026-10-26T20:37:02Z")
SuperScalar puts many self-custodial Lightning clients behind a single on-chain UTXO, with no soft fork and no trust in the coordinating LSP. It is @ZmnSCPxj’s design (SuperScalar with pseudo-Spilman leaves, t/1242); thi… --- ## [CLN: Self-Referential Channel Announcement DoS disclosure](https://delvingbitcoin.org/t/cln-self-referential-channel-announcement-dos-disclosure/2974)
**Author:** [@NishantBansal2003](https://delvingbitcoin.org/u/NishantBansal2003)\ **Replies:** 0\ **Last updated:** [October 24, 2026, 6:37am UTC](https://delvingbitcoin.org/t/cln-self-referential-channel-announcement-dos-disclosure/2974 "2026-10-24T06:37:23Z")
The issue discussed below was originally disclosed at nishantbansal2003.github.io and is reproduced here for discussion. Core Lightning v25.02 through v26.04 crash on a channel\_announcement whose node\_id\_1 and node\_id… --- ## [Several projects to make merchant adoption easier and cheaper](https://delvingbitcoin.org/t/several-projects-to-make-merchant-adoption-easier-and-cheaper/2967)
**Author:** [@andrewclicks](https://delvingbitcoin.org/u/andrewclicks)\ **Replies:** 2\ **Last updated:** [October 22, 2026, 9:42pm UTC](https://delvingbitcoin.org/t/several-projects-to-make-merchant-adoption-easier-and-cheaper/2967 "2026-10-22T21:42:24Z")
I would like to share with you several projects I have been working on over the past 2 years to make it easier to onboard merchants, particularly to lightning. Everybody knows there is a lot of rough UX around lightning … --- ## [From peer-to-peer cash to elite settlement layer: is the 21M cap building a new aristocracy?](https://delvingbitcoin.org/t/from-peer-to-peer-cash-to-elite-settlement-layer-is-the-21m-cap-building-a-new-aristocracy/2959)
**Author:** [@mosho](https://delvingbitcoin.org/u/mosho)\ **Replies:** 0\ **Last updated:** [October 14, 2026, 8:44pm UTC](https://delvingbitcoin.org/t/from-peer-to-peer-cash-to-elite-settlement-layer-is-the-21m-cap-building-a-new-aristocracy/2959 "2026-10-14T20:44:59Z")
Bitcoin was introduced as “a peer-to-peer electronic cash system” — money for everyone, without trusted third parties. Seventeen years later, an honest observation: BTC is increasingly accumulated as a reserve asset by g… --- ## [Disclosure: DoS vulnerabilities fixed in Eclair v0.14.1](https://delvingbitcoin.org/t/disclosure-dos-vulnerabilities-fixed-in-eclair-v0-14-1/2928)
**Author:** [@erickcestari](https://delvingbitcoin.org/u/erickcestari)\ **Replies:** 2\ **Last updated:** [October 6, 2026, 1:08pm UTC](https://delvingbitcoin.org/t/disclosure-dos-vulnerabilities-fixed-in-eclair-v0-14-1/2928 "2026-10-06T13:08:36Z")
Two denial-of-service vulnerabilities in Eclair’s channel opening flow were fixed in Eclair v0.14.1. Users should upgrade to v0.14.1 or later to protect their nodes. LNF-2026-0003: open\_channel race DoS Eclair v0.14.0 a… --- ## [PQLN: Post-Quantum Security for the Bitcoin Lightning Network's Off-Chain Surfaces](https://delvingbitcoin.org/t/pqln-post-quantum-security-for-the-bitcoin-lightning-networks-off-chain-surfaces/2893)
**Author:** [@ahmet-kurt](https://delvingbitcoin.org/u/ahmet-kurt)\ **Replies:** 3\ **Last updated:** [October 1, 2026, 2:35pm UTC](https://delvingbitcoin.org/t/pqln-post-quantum-security-for-the-bitcoin-lightning-networks-off-chain-surfaces/2893 "2026-10-01T14:35:14Z")
Hi everyone, This is my first post here. I’m Ahmet Kurt from East Texas A&M University doing research mainly on Lightning and its various applications. We built PQLN, a hybrid post-quantum (PQ) extension of Lightning w… --- ## [Disclosure: DoS vulnerabilities fixed in Eclair v0.14.0](https://delvingbitcoin.org/t/disclosure-dos-vulnerabilities-fixed-in-eclair-v0-14-0/2914)
**Author:** [@morehouse](https://delvingbitcoin.org/u/morehouse)\ **Replies:** 0\ **Last updated:** [September 24, 2026, 10:42pm UTC](https://delvingbitcoin.org/t/disclosure-dos-vulnerabilities-fixed-in-eclair-v0-14-0/2914 "2026-09-24T22:42:17Z")
Two denial-of-service vulnerabilities were fixed in Eclair v0.14.0. Users should upgrade to v0.14.0 or later to protect their nodes. LNF-2026-0001: Feature bit parsing DoS Eclair v0.13.1 and earlier parsed feature vect… --- ## [Disclosure: Crashing CLN with a flood of pings](https://delvingbitcoin.org/t/disclosure-crashing-cln-with-a-flood-of-pings/2846)
**Author:** [@erickcestari](https://delvingbitcoin.org/u/erickcestari)\ **Replies:** 0\ **Last updated:** [August 27, 2026, 7:02pm UTC](https://delvingbitcoin.org/t/disclosure-crashing-cln-with-a-flood-of-pings/2846 "2026-08-27T19:02:56Z")
The following disclosure is copied verbatim from a blog post on erickcestari.dev, reproduced here to facilitate discussion. I found a critical DoS vulnerability in Core Lightning (CLN) while writing my own BOLT8 impleme… --- ## [Improving the Security of lArk OOR Channels with Equivocation Bonds](https://delvingbitcoin.org/t/improving-the-security-of-lark-oor-channels-with-equivocation-bonds/2816)
**Author:** [@ademan](https://delvingbitcoin.org/u/ademan)\ **Replies:** 2\ **Last updated:** [August 25, 2026, 8:43pm UTC](https://delvingbitcoin.org/t/improving-the-security-of-lark-oor-channels-with-equivocation-bonds/2816 "2026-08-25T20:43:01Z")
Improving the Security of lArk OOR Channels with Equivocation Bonds This post describes a bond which improves the economic security of one-time, out-of-round assignments of Ark VTXOs. These assignments are intended to en… --- ## [Disclosure: LND doesn't wait for enough confirmations when closing channels](https://delvingbitcoin.org/t/disclosure-lnd-doesnt-wait-for-enough-confirmations-when-closing-channels/2800)
**Author:** [@t-bast](https://delvingbitcoin.org/u/t-bast)\ **Replies:** 0\ **Last updated:** [August 13, 2026, 3:06pm UTC](https://delvingbitcoin.org/t/disclosure-lnd-doesnt-wait-for-enough-confirmations-when-closing-channels/2800 "2026-08-13T15:06:43Z")
We’re disclosing a vulnerability in lnd, which was fixed version 20.0 (shipped in February 2026). Before this version, lnd would forget channels that were collaboratively closed immediately after their first on-chain con… --- ## [Expiring HTLCs without free relay](https://delvingbitcoin.org/t/expiring-htlcs-without-free-relay/2663)
**Author:** [@josh](https://delvingbitcoin.org/u/josh)\ **Replies:** 5\ **Last updated:** [August 11, 2026, 6:11pm UTC](https://delvingbitcoin.org/t/expiring-htlcs-without-free-relay/2663 "2026-08-11T18:11:25Z")
TLDR It is possible to create expiring HTLCs without the possibility of free relay. This would enable preimage monitoring via the confirmed chainstate (rather than the local mempool), reducing liveness assumptions for fo… --- ## [Onion Message Jamming in the Lightning Network](https://delvingbitcoin.org/t/onion-message-jamming-in-the-lightning-network/2414)
**Author:** [@erickcestari](https://delvingbitcoin.org/u/erickcestari)\ **Replies:** 24\ **Last updated:** [August 10, 2026, 7:21pm UTC](https://delvingbitcoin.org/t/onion-message-jamming-in-the-lightning-network/2414 "2026-08-10T19:21:49Z")
Background BOLT 4 acknowledges that onion message routing is inherently unreliable and recommends that implementations apply rate limiting. A common additional measure is to only relay onion messages from peers with whom… --- ## [E2E encryption for BOLT11/BOLT12 description/note field was this discussed before?](https://delvingbitcoin.org/t/e2e-encryption-for-bolt11-bolt12-description-note-field-was-this-discussed-before/2745)
**Author:** [@4xvgal](https://delvingbitcoin.org/u/4xvgal)\ **Replies:** 0\ **Last updated:** [July 27, 2026, 8:20am UTC](https://delvingbitcoin.org/t/e2e-encryption-for-bolt11-bolt12-description-note-field-was-this-discussed-before/2745 "2026-07-27T08:20:14Z")
Hi all, I checked several implementations and services — BTCPayServer, LND, CLN, LDK, Breez SDK (Liquid/Spark/Greenlight), Spark, bark, Arkade — and it looks like: regardless of BOLT11 vs BOLT12, and regardless of custo… --- ## [Path Queries: Addressing Payment Reliability and Routing limitations](https://delvingbitcoin.org/t/path-queries-addressing-payment-reliability-and-routing-limitations/1672)
**Author:** [@brh28](https://delvingbitcoin.org/u/brh28)\ **Replies:** 5\ **Last updated:** [July 15, 2026, 6:40pm UTC](https://delvingbitcoin.org/t/path-queries-addressing-payment-reliability-and-routing-limitations/1672 "2026-07-15T18:40:08Z")
Introduction To route a payment on the Lightning Network, a sender must choose a path to the destination using channels which contain sufficient liquidity and meet certain forwarding rules (e.g routing fees). As neither … --- ## [SuperScalar: Laddered Timeout-Tree-Structured Decker-Wattenhofer Factories With Pseudo-Spilman Leaves](https://delvingbitcoin.org/t/superscalar-laddered-timeout-tree-structured-decker-wattenhofer-factories-with-pseudo-spilman-leaves/1242)
**Author:** [@ZmnSCPxj](https://delvingbitcoin.org/u/ZmnSCPxj)\ **Replies:** 2\ **Last updated:** [July 13, 2026, 9:44am UTC](https://delvingbitcoin.org/t/superscalar-laddered-timeout-tree-structured-decker-wattenhofer-factories-with-pseudo-spilman-leaves/1242 "2026-07-13T09:44:33Z")
Subject: SuperScalar: Laddered Timeout-Tree-Structured Decker-Wattenhofer Factories With Pseudo-Spilman Leaves Introduction We introduce the LSP Last-Mile Problem: New users receiving their first ever Bitcoins over th… --- ## [LND: Zero-Timestamp Gossip DoS disclosure](https://delvingbitcoin.org/t/lnd-zero-timestamp-gossip-dos-disclosure/2621)
**Author:** [@NishantBansal2003](https://delvingbitcoin.org/u/NishantBansal2003)\ **Replies:** 0\ **Last updated:** [June 18, 2026, 4:16pm UTC](https://delvingbitcoin.org/t/lnd-zero-timestamp-gossip-dos-disclosure/2621 "2026-06-18T16:16:29Z")
The issue discussed below was originally disclosed at nishantbansal2003.github.io. For the corresponding LND advisory, see: LND Gossip Nil-Map Panic on Zero-Timestamp Messages | Lightning Labs Security Advisories. LND… --- ## [Vulnerability Disclosure: Assertion DoS in Core Lightning](https://delvingbitcoin.org/t/vulnerability-disclosure-assertion-dos-in-core-lightning/2507)
**Author:** [@Chand-ra](https://delvingbitcoin.org/u/Chand-ra)\ **Replies:** 0\ **Last updated:** [May 16, 2026, 1:23pm UTC](https://delvingbitcoin.org/t/vulnerability-disclosure-assertion-dos-in-core-lightning/2507 "2026-05-16T13:23:53Z")
Summary During my Summer of Bitcoin 2025 internship, I discovered a Denial-of-Service (DoS) vulnerability in Core Lightning (CLN) that allowed a remote peer to crash a node by sending a specifically crafted message. The … --- ## [Credible Exit and The Law of Conservation of Blockspace](https://delvingbitcoin.org/t/credible-exit-and-the-law-of-conservation-of-blockspace/2503)
**Author:** [@BitcoinErrorLog](https://delvingbitcoin.org/u/BitcoinErrorLog)\ **Replies:** 0\ **Last updated:** [May 13, 2026, 8:17am UTC](https://delvingbitcoin.org/t/credible-exit-and-the-law-of-conservation-of-blockspace/2503 "2026-05-13T08:17:35Z")
Today, I am releasing Credible Exit and The Law of Conservation of Blockspace. It shows the limit on users that Bitcoin layers can support in a “trust-minimized” way, and proves layers cannot actually scale Bitcoin. Le… --- ## [LIGHTNING ECONOMICS - The Bridge Between Bitcoin's Two Identities](https://delvingbitcoin.org/t/lightning-economics-the-bridge-between-bitcoins-two-identities/2487)
**Author:** [@freecritter](https://delvingbitcoin.org/u/freecritter)\ **Replies:** 0\ **Last updated:** [May 7, 2026, 7:49pm UTC](https://delvingbitcoin.org/t/lightning-economics-the-bridge-between-bitcoins-two-identities/2487 "2026-05-07T19:49:18Z")
Capital deployed to the Lightning Network earns fee income through routing, turning over approximately 7x annually, a velocity matched by only the highest-turnover industries in traditional finance, with a documented 88x… --- ## [Post Quantum Lightning: Layer by Layer](https://delvingbitcoin.org/t/post-quantum-lightning-layer-by-layer/2479)
**Author:** [@roasbeef](https://delvingbitcoin.org/u/roasbeef)\ **Replies:** 0\ **Last updated:** [May 5, 2026, 4:36am UTC](https://delvingbitcoin.org/t/post-quantum-lightning-layer-by-layer/2479 "2026-05-05T04:36:48Z")
Hi y’all, Over the past few weeks I’ve received some direct and indirect questions asking how the rise of quantum computers may affect the Lightning Network. I searched and didn’t see anything concrete written on the to… --- ## [\[Proposal\] Public Fraud Proofs for Just-in-Time Channels](https://delvingbitcoin.org/t/proposal-public-fraud-proofs-for-just-in-time-channels/2451)
**Author:** [@ThomasV](https://delvingbitcoin.org/u/ThomasV)\ **Replies:** 2\ **Last updated:** [April 27, 2026, 12:58pm UTC](https://delvingbitcoin.org/t/proposal-public-fraud-proofs-for-just-in-time-channels/2451 "2026-04-27T12:58:31Z")
Hello everyone, I have long been unsatisfied by the trust model of just-in-time channels. Here is a new proposal, that attempts to improve the situation using fraud proofs and game theory. The main idea is that clients… --- ## [LN-Symmetry Project Recap](https://delvingbitcoin.org/t/ln-symmetry-project-recap/359)
**Author:** [@instagibbs](https://delvingbitcoin.org/u/instagibbs)\ **Replies:** 17\ **Last updated:** [April 21, 2026, 4:20pm UTC](https://delvingbitcoin.org/t/ln-symmetry-project-recap/359 "2026-04-21T16:20:04Z")
LN-Symmetry Project ln-symmetry started with a simple idea: Someone should take the eltoo idea and take it as far as possible to prove out the concept, without requiring community consensus required actions like softfork… --- ## [Eltoo State Chain on Signet Again: Three Rounds, Two Transactions (CSFS + CTV, with rekey and ladder, no CAT)](https://delvingbitcoin.org/t/eltoo-state-chain-on-signet-again-three-rounds-two-transactions-csfs-ctv-with-rekey-and-ladder-no-cat/2430)
**Author:** [@AaronZhang](https://delvingbitcoin.org/u/AaronZhang)\ **Replies:** 0\ **Last updated:** [April 20, 2026, 3:41pm UTC](https://delvingbitcoin.org/t/eltoo-state-chain-on-signet-again-three-rounds-two-transactions-csfs-ctv-with-rekey-and-ladder-no-cat/2430 "2026-04-20T15:41:49Z")
Last week I posted Eltoo State Chain on Signet: Three Rounds, Six Transactions (APO+CTV). This post is a counterpart to that experiment – same 3-round Alice/Bob/Carol scenario, switching the primitive to CSFS+CTV. The re… --- ## [Definition of decentralization](https://delvingbitcoin.org/t/definition-of-decentralization/2361)
**Author:** [@kurimoto](https://delvingbitcoin.org/u/kurimoto)\ **Replies:** 2\ **Last updated:** [April 8, 2026, 11:19am UTC](https://delvingbitcoin.org/t/definition-of-decentralization/2361 "2026-04-08T11:19:14Z")
Hello. We conducted a survey on Bitcoin’s 2nd layer and submitted the attached paper to a workshop three months ago. However, after submission, we came to believe there were several errors, and we officially withdrew the… --- ## [Eddy: Free Cooperative Circular Rebalancing](https://delvingbitcoin.org/t/eddy-free-cooperative-circular-rebalancing/2349)
**Author:** [@wactario](https://delvingbitcoin.org/u/wactario)\ **Replies:** 0\ **Last updated:** [March 21, 2026, 10:49pm UTC](https://delvingbitcoin.org/t/eddy-free-cooperative-circular-rebalancing/2349 "2026-03-21T22:49:44Z")
The Problem In René Pickhardt’s magnum opus, “A Mathematical Theory of Payment Channel Networks”, he proved that, even in a perfectly circular economy, asymmetric channel fees will make the network more expensive and les… --- ## [UltrafastSecp256k1 v3.14.0](https://delvingbitcoin.org/t/ultrafastsecp256k1-v3-14-0/2286)
**Author:** [@shrec](https://delvingbitcoin.org/u/shrec)\ **Replies:** 9\ **Last updated:** [March 5, 2026, 7:08pm UTC](https://delvingbitcoin.org/t/ultrafastsecp256k1-v3-14-0/2286 "2026-03-05T19:08:07Z")
Added — Language Bindings (12 languages, 41-function C API parity) Java — 22 new JNI functions + 3 helper classes (RecoverableSignature, WifDecoded, TaprootOutputKeyResult): full coverage of ECDSA sign/verify, DER enco… [Next page](https://delvingbitcoin.org/tag/lightning/4.md?match_all_tags=true&page=1&tags%5B%5D=lightning)