Bitcoin Optech on Nostr: Bitcoin Optech newsletter #315 is here: - announces the Dark Skippy fast seed ...
Bitcoin Optech newsletter #315 is here:
- announces the Dark Skippy fast seed exfiltration attack
- summarizes discussion about block withholding attacks and proposed solutions
- shares statistics about compact block reconstruction
- describes a replacement cycling attack against transactions with pay-to-anchor outputs
- mentions a new BIP specifying threshold signing with FROST
- relays an announcement of an improvement to Eftrace that allows it to opportunistically verify zero-knowledge proofs using two proposed soft forks
- recaps the "Add PayToAnchor(P2A), OP_1 <0x4e73>, as standard output script for spending" PR Review Meeting
- adds a Block withholding topic
- adds a Replacement cycling topic
- Optech Newsletter #315 Recap on Twitter Spaces
https://bitcoinops.org/en/newsletters/2024/08/09/
Lloyd Fournier, Nick Farrow, and Robin Linus announced Dark Skippy, an improved method for key exfiltration from a Bitcoin signing device which they previously responsibly disclosed to approximately 15 different hardware signing device vendors...
https://bitcoinops.org/en/newsletters/2024/08/09/#faster-seed-exfiltration-attack
Anthony Towns posted to the Bitcoin-Dev mailing list to discuss the block withholding attack, a related invalid shares attack, and potential solutions to both attacks—including disabling client work selection in Stratum v2 and oblivious shares...
https://bitcoinops.org/en/newsletters/2024/08/09/#block-withholding-attacks-and-potential-solutions
0xB10C posted to Delving Bitcoin about the recent reliability of compact block reconstruction...
https://bitcoinops.org/en/newsletters/2024/08/09/#statistics-on-compact-block-reconstruction
Peter Todd posted to the Bitcoin-Dev mailing list about the pay-to-anchor (P2A) output type that is part of the ephemeral anchors proposal. P2A is a transaction output that anyone can spend...
https://bitcoinops.org/en/newsletters/2024/08/09/#replacement-cycle-attack-against-pay-to-anchor
Sivaram Dhakshinamoorthy posted to the Bitcoin-Dev mailing list to announce the availability of a proposed BIP for creating scriptless threshold signatures for Bitcoin’s implementation of schnorr signatures...
https://bitcoinops.org/en/newsletters/2024/08/09/#proposed-bip-for-scriptless-threshold-signatures
Johan T. Halseth posted to Delving Bitcoin to announce that his tool, Elftrace, now has the ability to verify zero-knowledge (ZK) proofs...
https://bitcoinops.org/en/newsletters/2024/08/09/#optimistic-verification-of-zero-knowledge-proofs-using-cat-matt-and-elftrace
Add PayToAnchor(P2A), OP_1 <0x4e73>, as standard output script for spending is a PR by instagibbs that introduces a new TxoutType::ANCHOR output script type...
https://bitcoinops.org/en/newsletters/2024/08/09/#bitcoin-core-pr-review-club
Block withholding is an attack against pooled mining where a miner submits and receives payment for shares that are not eligible to become full blocks but doesn’t not submit shares that are eligible to become full blocks...
https://bitcoinops.org/en/topics/block-withholding/
Replacement cycling is an attack against CPFP fee bumps and transactions using SIGHASH_SINGLE that allows an attacker to remove an unconfirmed transaction from the mempools of relaying full nodes without leaving an alternative transaction in its place...
https://bitcoinops.org/en/topics/replacement-cycling/
Bitcoin Optech will host an audio recap discussion of this newsletter with special guests Matt Corallo, Greg Sanders, and Sivaram Dhakshinamoorthy on Twitter Spaces Tuesday at 14:30 UTC. Join us to discuss or ask questions!
https://twitter.com/i/spaces/1YpKklrwedrGj
- announces the Dark Skippy fast seed exfiltration attack
- summarizes discussion about block withholding attacks and proposed solutions
- shares statistics about compact block reconstruction
- describes a replacement cycling attack against transactions with pay-to-anchor outputs
- mentions a new BIP specifying threshold signing with FROST
- relays an announcement of an improvement to Eftrace that allows it to opportunistically verify zero-knowledge proofs using two proposed soft forks
- recaps the "Add PayToAnchor(P2A), OP_1 <0x4e73>, as standard output script for spending" PR Review Meeting
- adds a Block withholding topic
- adds a Replacement cycling topic
- Optech Newsletter #315 Recap on Twitter Spaces
https://bitcoinops.org/en/newsletters/2024/08/09/
Lloyd Fournier, Nick Farrow, and Robin Linus announced Dark Skippy, an improved method for key exfiltration from a Bitcoin signing device which they previously responsibly disclosed to approximately 15 different hardware signing device vendors...
https://bitcoinops.org/en/newsletters/2024/08/09/#faster-seed-exfiltration-attack
Anthony Towns posted to the Bitcoin-Dev mailing list to discuss the block withholding attack, a related invalid shares attack, and potential solutions to both attacks—including disabling client work selection in Stratum v2 and oblivious shares...
https://bitcoinops.org/en/newsletters/2024/08/09/#block-withholding-attacks-and-potential-solutions
0xB10C posted to Delving Bitcoin about the recent reliability of compact block reconstruction...
https://bitcoinops.org/en/newsletters/2024/08/09/#statistics-on-compact-block-reconstruction
Peter Todd posted to the Bitcoin-Dev mailing list about the pay-to-anchor (P2A) output type that is part of the ephemeral anchors proposal. P2A is a transaction output that anyone can spend...
https://bitcoinops.org/en/newsletters/2024/08/09/#replacement-cycle-attack-against-pay-to-anchor
Sivaram Dhakshinamoorthy posted to the Bitcoin-Dev mailing list to announce the availability of a proposed BIP for creating scriptless threshold signatures for Bitcoin’s implementation of schnorr signatures...
https://bitcoinops.org/en/newsletters/2024/08/09/#proposed-bip-for-scriptless-threshold-signatures
Johan T. Halseth posted to Delving Bitcoin to announce that his tool, Elftrace, now has the ability to verify zero-knowledge (ZK) proofs...
https://bitcoinops.org/en/newsletters/2024/08/09/#optimistic-verification-of-zero-knowledge-proofs-using-cat-matt-and-elftrace
Add PayToAnchor(P2A), OP_1 <0x4e73>, as standard output script for spending is a PR by instagibbs that introduces a new TxoutType::ANCHOR output script type...
https://bitcoinops.org/en/newsletters/2024/08/09/#bitcoin-core-pr-review-club
Block withholding is an attack against pooled mining where a miner submits and receives payment for shares that are not eligible to become full blocks but doesn’t not submit shares that are eligible to become full blocks...
https://bitcoinops.org/en/topics/block-withholding/
Replacement cycling is an attack against CPFP fee bumps and transactions using SIGHASH_SINGLE that allows an attacker to remove an unconfirmed transaction from the mempools of relaying full nodes without leaving an alternative transaction in its place...
https://bitcoinops.org/en/topics/replacement-cycling/
Bitcoin Optech will host an audio recap discussion of this newsletter with special guests Matt Corallo, Greg Sanders, and Sivaram Dhakshinamoorthy on Twitter Spaces Tuesday at 14:30 UTC. Join us to discuss or ask questions!
https://twitter.com/i/spaces/1YpKklrwedrGj