Questions tagged [attack]

Relates to attempts to harm the Bitcoin network. In cryptography, an attack is a method/technique to break the code. Bitcoin also has to deal with other types of attack, such as double spends and denial of service.

7 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2
votes
0answers
63 views

Selfish mining attack: Probability of block being mined - CS251 exam question

I am currently studying for the CS251 Cryptocurrencies and Blockchain Technologies exam. In a past exam, there is this question without an answer and I would really appreciate your help so that I can ...
2
votes
0answers
73 views

Which opcodes where disabled by Satoshi Nakamoto for cve 2010 5137

Lot of opcodes where disabled over the years. But which opcodes where disabled Satoshi himself and specifically for the any one can spend any coin bug?
1
vote
0answers
56 views

Is it possible to run a simple attack on a previous version of the client in testnet mode?

I need to simulate an attack locally or in testnet (if possible) for academic purpose, on an old and bugged version of the bitcoin core client. I am in posses of test BTC in the last version. I want ...
0
votes
0answers
31 views

What resources are needed to implement the EREBUS attack?

I have read this paper of EREBUS attackA Stealthier Partitioning Attack against Bitcoin Peer-to-Peer Network. And I want to konw that what resources are needed to implement an EREBUS attack? IP ...
0
votes
0answers
30 views

What is the fraction of the Bitcoin mining power that might be engaged in Selfish-Mining?

Is there an estimate for the fraction of miners engaged in Selfish Mining within the BTC network? In light of the publication The Impact of Selfish Mining on Bitcoin Network Performance (2021), ...
0
votes
1answer
78 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
1answer
43 views

What stops people attacking my new coin?

Say I just made a new altcoin. I mined it for a few days at some reasanoble difficulty - 2000 for example. I got to the 10 000th block and I am happy with my premine and network. Then, an attacker ...