Post
Topic
Board Mining speculation
Re: Could ASIC-producers perform a block withholding attack?
by
zefir
on 25/01/2015, 17:11:15 UTC
Modifying cgminer or bfgminer to drop every block not going to pool X with a probability of Y is a one liner to code. If done in closed-source products, the exposure risk is basically zero. We would need organofcorti here to give us reliable numbers on how long you would need to collect statistics to have an indication that a 1TH machine is withholding blocks. Since you are not dropping low-difficulty shares but only blocks, I'd assume it would be impossible to detect a malicious behavior even with a pool of 100 units.

So technically, what you describe is absolutely and trivially doable. Above that, everything is conspiracy Wink

Fight this easily by not using closed-source products and deploy them with FW you built from source yourself. And if you can afford, do solo-mine - pools are in fact quite unlucky recently...