📅 Original date posted:2013-05-15
📝 Original message:On Wed, May 15, 2013 at 07:19:06AM -0400, Peter Todd wrote:
>Protocols aren't set in stone - any attacker that controls enough
>hashing power to pose a 51% attack can simply demand that you use a
>Bitcoin client modified [to facilitate evaluation of his policy]
Protocol voting is a vote per user policy preference, not a CPU vote, which
is the point. Current bitcoin protocol is vulnerable to hard to prove
arbitrary policies being imposable by a quorum of > 50% miners. The blind
commitment proposal fixes that, so even an 99% quorum cant easily impose
policies, which leaves the weaker protocol vote attack as the remaining
avenue of attack. That is a significant qualitative improvement.
The feasibility of protocol voting attacks is an open question, but you
might want to consider the seeming unstoppability of p2p protocols for a
hint.
Adam
Adam Back [ARCHIVE] /
npub1ac…lswfj
2023-06-07 15:01:52
in reply to nevent1q…3lsm
Author Public Key
npub1ac86vemj7ce5z8jyxt39rna3tvwql6xd30ha3vxcd6esysp23d9qrlswfjPublished at
2023-06-07 15:01:52Event JSON
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"content": "📅 Original date posted:2013-05-15\n📝 Original message:On Wed, May 15, 2013 at 07:19:06AM -0400, Peter Todd wrote:\n\u003eProtocols aren't set in stone - any attacker that controls enough\n\u003ehashing power to pose a 51% attack can simply demand that you use a\n\u003eBitcoin client modified [to facilitate evaluation of his policy]\n\nProtocol voting is a vote per user policy preference, not a CPU vote, which\nis the point. Current bitcoin protocol is vulnerable to hard to prove\narbitrary policies being imposable by a quorum of \u003e 50% miners. The blind\ncommitment proposal fixes that, so even an 99% quorum cant easily impose\npolicies, which leaves the weaker protocol vote attack as the remaining\navenue of attack. That is a significant qualitative improvement.\n\nThe feasibility of protocol voting attacks is an open question, but you\nmight want to consider the seeming unstoppability of p2p protocols for a\nhint.\n\nAdam",
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