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Episode 66: The BTCD Bug That Brought Down LND Nodes

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Contenido proporcionado por Van Wirdum Sjorsnado. Todo el contenido del podcast, incluidos episodios, gráficos y descripciones de podcast, lo carga y proporciona directamente Van Wirdum Sjorsnado o su socio de plataforma de podcast. Si cree que alguien está utilizando su trabajo protegido por derechos de autor sin su permiso, puede seguir el proceso descrito aquí https://es.player.fm/legal.

In this episode of Bitcoin, Explained, hosts Aaron van Wirdum and Sjors Provoost discuss a recent bug in the btcd Bitcoin implementation that affected a large part of the Lightning network, as it disconnected lnd Lightning nodes from the Bitcoin blockchain.

In the episode, Aaron and Sjors explain that a developer going by the name Burak on Twitter created a 998-of-999 multisig transaction by leveraging Taproot. Although this was a valid transaction, btcd and lnd nodes rejected it, and therefore rejected the block that included the transaction and all blocks that came after it.

Specifically, Sjors explains, btcd rejected the transaction because it has a maximum limit on how much witness data a Segwit transaction can include. Although other Bitcoin implementations do enforce this limit on Segwit version 0 transactions, Segwit version 1 (that is, Taproot) transactions have no such limit.

Still, it is a bit unclear why this bug in btcd seemingly also affected many lnd Lightning nodes which use Bitcoin Core rather than btcd to validate blocks. In the second half of the episode, Sjors speculates how the two may be connected.

Finally, Aaron and Sjors explain how the Lightning Network is affected when Lightning nodes reject the Bitcoin blockchain.

Lower your time preference and lock-in your BITCOIN 2023 conference tickets today! Use the code BMLIVE for a 10% Discount!

https://b.tc/conference/2023

Use promocode: BMLIVE for 10% off everything in our store!

https://store.bitcoinmagazine.com/

  continue reading

95 episodios

Artwork
iconCompartir
 
Manage episode 344892275 series 2860967
Contenido proporcionado por Van Wirdum Sjorsnado. Todo el contenido del podcast, incluidos episodios, gráficos y descripciones de podcast, lo carga y proporciona directamente Van Wirdum Sjorsnado o su socio de plataforma de podcast. Si cree que alguien está utilizando su trabajo protegido por derechos de autor sin su permiso, puede seguir el proceso descrito aquí https://es.player.fm/legal.

In this episode of Bitcoin, Explained, hosts Aaron van Wirdum and Sjors Provoost discuss a recent bug in the btcd Bitcoin implementation that affected a large part of the Lightning network, as it disconnected lnd Lightning nodes from the Bitcoin blockchain.

In the episode, Aaron and Sjors explain that a developer going by the name Burak on Twitter created a 998-of-999 multisig transaction by leveraging Taproot. Although this was a valid transaction, btcd and lnd nodes rejected it, and therefore rejected the block that included the transaction and all blocks that came after it.

Specifically, Sjors explains, btcd rejected the transaction because it has a maximum limit on how much witness data a Segwit transaction can include. Although other Bitcoin implementations do enforce this limit on Segwit version 0 transactions, Segwit version 1 (that is, Taproot) transactions have no such limit.

Still, it is a bit unclear why this bug in btcd seemingly also affected many lnd Lightning nodes which use Bitcoin Core rather than btcd to validate blocks. In the second half of the episode, Sjors speculates how the two may be connected.

Finally, Aaron and Sjors explain how the Lightning Network is affected when Lightning nodes reject the Bitcoin blockchain.

Lower your time preference and lock-in your BITCOIN 2023 conference tickets today! Use the code BMLIVE for a 10% Discount!

https://b.tc/conference/2023

Use promocode: BMLIVE for 10% off everything in our store!

https://store.bitcoinmagazine.com/

  continue reading

95 episodios

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