Author

Topic: Is Unobtanium under attack? (Read 898 times)

hero member
Activity: 490
Merit: 500
0_0
April 25, 2014, 04:46:35 PM
#4
any news ?
sr. member
Activity: 434
Merit: 250
April 05, 2014, 10:05:53 PM
#3
Maybe I'm just paranoid and somehow it's a multipool that's so large, it's able to mess up the difficulty algorithm on a consistent basis for 2.5 weeks in a row on a 3 hour cycle?
sr. member
Activity: 434
Merit: 250
April 04, 2014, 04:38:58 PM
#2
So looks like mhPM56zPEawm7e2ypxiDnnnPRDfBDTh2Xw has "mined" 6650 blocks so far, for a total of 1624 UNO, in just over 2 weeks.
sr. member
Activity: 434
Merit: 250
April 04, 2014, 04:13:59 PM
#1
The official thread has been locked for quite a while, so not sure where else to bring this up. I wrote up a post on reddit about my concerns:

http://www.reddit.com/r/Unobtanium/comments/2281i0/under_attack/

and will quote it here:

Quote
I've noticed the DOA rate skyrockets on my p2pool node every 3 hours, for a while now. I tried to figure out why, and it's because the diff will drop impossibly low (like 25K) and then so many blocks flood in all at once my miners can't keep up, so the huge # of DOAs happen until all those new blocks are finished flooding in.

Looking at the block explorer this feels exactly like the old timewarp attacks on TRC's difficulty algorithm. An attack would manipulate the timestamps in such a way to get the diff really low, mine a massive number of blocks, then introduce it into the block chain causing an ophan and hundreds (thousands) of new blocks all generating coins only to himself and with no transactions.

That seems to be exactly what is happening now. Since the BTC thread has been locked for a while I can't bring this up there, so I'll mention it here instead, in the hopes the devs will notice and do something about it. The TRC dev tried a few things to try and counter it but eventually had to give up and revert to BTC's basic algorithm to make the timewarp exploits go away.

Uno may need to consider the same, or something like KGW if KGW has no known attack vectors yet.
Jump to: