So what do I do? Do I have to get myself banned 10 times, which is also a big waste of time on my end particularly if time is a very important resource and I am a Target, while trying to find out if the Attacker is quitting due to Mining Fee burns?
I explained 3 different methods to detect a Sybil attacker, you don't have to get yourself banned:
My points proved conclusively that coordinators are trustless. You can even use all 3 anti Sybil methods together at once, you don't have to rely on just one:
- First, register your private coin to the coordinator. If it's accepted, then there's no Sybil attack.
- Second, ask your friend to register a coin to the same round. If it's accepted, then you've confirmed for a second time that there's no Sybil attack.
- Third, just to be absolutely sure, back out of the round during signing to check to see if the transaction was built to target you. If the transaction is created, you've confirmed for a third time that there's no Sybil attack.
- First, register your private coin to the coordinator. If it's accepted, then there's no Sybil attack.
- Second, ask your friend to register a coin to the same round. If it's accepted, then you've confirmed for a second time that there's no Sybil attack.
- Third, just to be absolutely sure, back out of the round during signing to check to see if the transaction was built to target you. If the transaction is created, you've confirmed for a third time that there's no Sybil attack.
If somebody is so keen on trying to attack a Target, then may be safe to assume the Target is likely very important and therefore the Funding could be huge. And I imagine having a Million Dollars funding to spend on a Decoy Coordinator burning Mining Fees in an attempt of the successful Attack is not too extraordinary either.
Imagine the attacker spending a million dollars in mining fees to set up a decoy just to be immediately detected with methods 1 or 2
