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Author Topic: Open challenge by dev of Digitalcoin to 51% DGC?  (Read 1525 times)
JasperParsons
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June 17, 2013, 08:18:16 PM
 #21

Yes but your other computer on the LAN is connected to the network so it'll see you already spent your coins.

If disconnect both, in order to get a longer blockchain, you'll have to generate blocks; good luck with that.

BTC difficulty is currently 19,339,258.

You'd need to have 51% of the hashing power, hence why it's called the 51% attack.

You kinda left that step out.

At step 9, you indeed need to generate blocks faster than the real network ... That's why you need some horsepower and that's why it is "recommended" to launch a deny of service on the main pools to ease your chance to get a longer blockchain.

I'm not an expert, but I suppose you don't really need 51% of the hashpower ...  the more you have, the more likely you will generate a longer blockchain in a given timeframe. At 25% I suppose you can already be considered a threat

At 25% you would have to be VERY lucky to be a threat.  You don't want to have too much more than the network so as not to reflect any huge spike in network hash rate when you broadcast your blockchain.
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June 17, 2013, 08:22:52 PM
 #22

Yes but your other computer on the LAN is connected to the network so it'll see you already spent your coins.

If disconnect both, in order to get a longer blockchain, you'll have to generate blocks; good luck with that.

BTC difficulty is currently 19,339,258.

You'd need to have 51% of the hashing power, hence why it's called the 51% attack.

You kinda left that step out.

At step 9, you indeed need to generate blocks faster than the real network ... That's why you need some horsepower and that's why it is "recommended" to launch a deny of service on the main pools to ease your chance to get a longer blockchain.

I'm not an expert, but I suppose you don't really need 51% of the hashpower ...  the more you have, the more likely you will generate a longer blockchain in a given timeframe. At 25% I suppose you can already be considered a threat

At 25% you would have to be VERY lucky to be a threat.  You don't want to have too much more than the network so as not to reflect any huge spike in network hash rate when you broadcast your blockchain.

It depends on the number of confirmations doesn't it ?
Also, with coins having very short block-time (12sec, 15sec, 20sec, ...), it also increases your chance to get a "lucky draw" in a given time frame. (And also reduce the time for the pool operators / Internet providers to react to a deny of service)

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June 17, 2013, 08:24:51 PM
 #23

Yes but your other computer on the LAN is connected to the network so it'll see you already spent your coins.

If disconnect both, in order to get a longer blockchain, you'll have to generate blocks; good luck with that.

BTC difficulty is currently 19,339,258.

You'd need to have 51% of the hashing power, hence why it's called the 51% attack.

You kinda left that step out.

At step 9, you indeed need to generate blocks faster than the real network ... That's why you need some horsepower and that's why it is "recommended" to launch a deny of service on the main pools to ease your chance to get a longer blockchain.

I'm not an expert, but I suppose you don't really need 51% of the hashpower ...  the more you have, the more likely you will generate a longer blockchain in a given timeframe. At 25% I suppose you can already be considered a threat

At 25% you would have to be VERY lucky to be a threat.  You don't want to have too much more than the network so as not to reflect any huge spike in network hash rate when you broadcast your blockchain.

It depends on the number of confirmations doesn't it ?
Also, with coins having very short block-time (12sec, 15sec, 20sec, ...), it also increases your chance to get a "lucky draw" in a given time frame. (And also reduce the time for the pool operators / Internet providers to react to a deny of service)

+1

Which is why I'm not mining any coin with insanely short block times.

 
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June 17, 2013, 08:40:32 PM
 #24


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thisnewcoin
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June 17, 2013, 09:36:55 PM
 #25

who opened this challenge? just curious

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anderl
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June 17, 2013, 10:24:59 PM
 #26

who opened this challenge? just curious

started with altcoinkiller threatening to attack all altcoins with his "crew" when they come online.  claimed to kill PWR.  a thread was born and DGC dev challenge altcoinkiller to try to attack DGC.  All the gpu chimps fanboys from LTC and or BTC jumped on the bandwagon stating the challenge was open to everyone to attack DGC.  Lots of monkey business.
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