Questions tagged [majority-attack]

A majority attack, or 51% attack, is an attempt at solo-mining a longer chain to outpace the main chain.

8 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
1
vote
1answer
78 views

Can a 'China' or similar actor with more than half of the hash power really destroy Bitcoin?

More of a general question as I've recently gotten into investing in cryptocurrencies. I really love the vision for the future this technology provides, the freedom, ease of use, lack of middlemen, ...
1
vote
0answers
132 views

Minority Attack on Bitcoins

I read the first paper which described the bitcoins. Most of it is clear except for one thing. I tried to find solutions online but couldn't find it. I am completely aware of the implications of a ...
0
votes
0answers
17 views

Would AsicBoost have made "all the difference between a profitable and an unprofitable mine" "for the bitcoin mines of the future"?

Back when AsicBoost was a thing - the paper by Timo Hanke, "AsicBoost - A Speedup for Bitcoin Mining", made the following claims in the introduction: Through gate count reduction on the ...
0
votes
0answers
14 views

How much hash power exists in redundant mining hardware?

I'm trying to understand the feasibilty of a hostile nation-state performing a double spend attack on bitcoin. Assuming mining profitability is not a concern, I wonder if they could buy or borrow ...
0
votes
0answers
33 views

Pissing Attack / adversarial blocks attack

How do the ones of you familiar with the protocol and game theory suggest dealing with potential 'empty block attacks' (a majority of miners collaborate to slow down Bitcoin transactions by producing ...
0
votes
1answer
61 views

the client's 'invalidateblock' debugging command - possible prevention against majority attack?

there is a 'invalidateblock' debugging command in the btc client. How can this command be used in a situation of majority attack threat and play a part of countering the attack? I understand that ...
0
votes
1answer
67 views

Bitcoin 51% majority miner attack - question on the role of user activated soft forks as defense tactic

If one mining entity has alone 52% hash power of the overall network, then this party can block transactions for example and try to "build" up a forked, longer chain while time passes, right?. As I ...
0
votes
0answers
45 views

Is 10K full nodes enough to bitcoin to avoid 51% attack?

As I know bitcoin has about 10K full nodes. And the question is in my mind is that: This number is not huge! If someone has 6K servers, Can control the bitcoin via 51% attack? I was thinking if ...