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21  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New 1.2.2 Automated Transactions on: March 14, 2015, 02:17:44 PM
Guys keep in mind, regardless of the length of your passphrase, bruteforcing will eventually find accounts. I'm actually surprised this hasn't become more prevalent. Since each wallet is ONLY a passphrase and not a username and passphrase to authenticate against, and there is not a lockout on accounts for how fast you can check a passphrase (unless the blockchain does it). All someone needs to do is bruteforce continually till it happens upon a account. Since everyone is essentially using one username which is identical for all of us and it's impossibly hard to change it once you have one (replotting).

Luckily mine is huge, but with time it will also be broken by a brute force. I'm not certain of the speed at which you could check passwords, but I assume with scripts and modern GPUs you could do some serious bruteforcing on Burst.

Burst uses 256 bit keys to protect accounts. When your passphrase has 256 bits or more entropy, the account is protected by 256 bits.
256 bits ~ 1.15 * 1078 ~ about the number of atoms in the observable universe.

Bitcoin addresses are "only" protected by 160 bits, which is more than a billion billion times easier to brute force, but even thats out of reach.

At the moment even 64 bits are - kind of - safe.

Take a look at this address:
http://burstcoin.eu/address/17139770934297222142

3 Million burst protected by 64 bits. Still not stolen. I highly recommend this guy to protect his address!
22  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New 1.2.2 Automated Transactions on: March 13, 2015, 12:37:52 AM
The passphrase was just a single word and 3 numbers - an old password that I've always remembered.  I use Lastpass and 2FA for just about everything these days, I just didn't want to set up Lastpass on the mining computers so I went simple for simplicity's sake.  

Thats partly good news, since your computer is most likely not compromised and its no flaw in the wallet itself. I still feel sorry for your loss.

Agreed.
23  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New 1.2.2 Automated Transactions on: March 12, 2015, 11:30:57 PM
Nice work, thanks!

But damn ... one week too late for me, just bought a FX-8320E cause of CPU limitation ... should have choosen a CPU with AVX2 :-(

Think i have to hope/wait for PoC2 ... or is there any miner with GPU support in development/available?!

Thanks! Just wait a few days, Iīm working on another one also supporting AVX.
24  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New 1.2.2 Automated Transactions on: March 12, 2015, 11:26:31 PM
Maaaaannnnn "Bob" has stolen nearly 100,000 BURST from my mining wallet.  Embarrassed

His address: BURST-DS6V-VWPT-L2BT-344NL

Image here: http://imgur.com/1brEjU7

I was JUST the other day going to empty it.  Wonder how he got in?  I haven't used that computer for anything else, ever.  Just sits idle.  Jerk.

Sorry to hear. How complex was your password?

Not at all - that part's my fault.  I had been emptying it every couple days but for the last few months I've just mostly forgotten about it.

I suppose he probably is just brute-force guessing passwords.

Did you use your own password or one suggested by the Burst wallet.. I don't buy brute force if you used a suggested password.

I used my own.  The wallet was emptied every few days to a more secure account - I just let it go for a while before I emptied it.

I'm trying to figure out how to assign my rewards to my new account using dev's v2 pool.  It's been so long I can't remember how this all works, lol.  I did the reward assignment from my wallet's computer to my new address - but how will the pool know to send my old account number to this new wallet?  That page doesn't give you a place to enter the account number associated to the plots.  I'm so confused - I used to know all this!

Iīm afraid you have to re-plot using your new id. "bob" could also change your reward assignment.

Mind sharing your passphrase? I like to know how complex it is.

edit: And stop mining! You are feeding this guy.
25  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New 1.2.2 Automated Transactions on: March 12, 2015, 06:33:42 PM
I like to share a slightly modified miner for Haswell/AVX2:

https://bchain.info/avx2_miner.tbz

Linux/tested for solo mining only. About 5 times faster.

You only need this if you have lots of TB in one machine. It will only increase your mining speed if itīs limited by your CPU!
26  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New 1.2.2 Automated Transactions on: March 11, 2015, 10:40:30 PM

@dcct
@smaxer




If you refresh the burstcoin.info page, it will show the values from the burstcoin.eu page real fast before it switches to the actual ones.

bchain.info was wrong here, fixed it.
27  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New 1.2.2 Automated Transactions on: March 09, 2015, 11:46:42 PM
The various sites quoting network size use very small block-ranges for averaging, not very helpful IMO due to their spikey-ness.

Good point. My calculator now uses 360 block average:

https://bchain.info/BURST/tools/calculator
28  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New 1.2.2 Automated Transactions on: March 08, 2015, 07:28:10 AM
Quote
However, this means that once the plots are built, there is very little cost to redoing the scan multiple times on multiple forks.

Unless that attacker is able to extend a fork further than the main
blockchain, this fork simply wonīt be accepted by its peers.

I once calculated the probability of this. Its very very low unless the attacker owns a large percentage of the network plots, and even then it only allows to mine a few additional blocks.

Quote
Hence, if an attacker could either (i) convince miners that its fork had a
>0.1%* chance of succeeding or (ii) bribe miners 0.001x the block
reward, miners all have the incentive to double-vote.

(i) This fork wonīt get accepted by other nodes in the first place. The attacker would have to convince miners to actively mine those forks - with a modified miner for example.
(ii) Plots used for double-voting were already used for regular mining. Therefore the attackerīs forks canīt start with the best deadline - which is already used on the main blockchain - making it unlikely to get accepted, even with lots of miners involved.

Even if these succeed, it will only replace a few blocks at most, still leaving the network intact.

Quote
> * In order for the algo to be storage-bound and for a shortcut attack
involving recomputing everything not to exist, we need reading from the
hard drive to take less time than recomputing the data. But then we
want a 1000x safety margin if we want that condition to hold true
against potential ASIC implementations, hence reads need to be 1000x
cheaper than the plot computation step. Hence, reading more than one
time would have a marginal incremental cost of only 0.1%.

Reading time is irrelevant here, disk space is the limiting factor for almost everyone.
29  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New 1.2.0 Automated Transactions on: January 16, 2015, 06:20:41 AM
Curious bit, I have a rather large plot going on right now. What happens if you miscalculate the amount of space you have and you try to plot more space then you have? Will the plot still be good if the plotter runs into it or will it error out and the plot will be corrupt?

The plotter will stop, but the file is still good to use.
30  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] [LIMX] [X11] [REVIVAL] LimeCoinX, LIMX.EU, Bitcoin Fork on: January 13, 2015, 04:52:46 AM
Pool down ?

AikaPool?

I'm mining without problems.
31  Alternate cryptocurrencies / Announcements (Altcoins) / Blockexplorer on: January 11, 2015, 11:12:32 PM
Hi everyone,

the block-explorer for LIMX is ready:

https://bchain.info/LIMX/

Comes with a mining calculator:

https://bchain.info/LIMX/tools/calculator

And a faucet:

https://bchain.info/LIMX/faucet

Donations to cover server cost are always welcome: i4JZfg9J7MuPjBh4cJXkLviPVwkSeZE5aj

32  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] [LIMX] [X11] [REVIVAL] LimeCoinX, LIMX.EU, Bitcoin Fork on: January 11, 2015, 05:39:05 PM
My node is not connecting. Please post some addnode's.
33  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] [DGMS] DigiGems |No Premine|scrypt|No IPO on: January 10, 2015, 12:07:51 AM
Any news?

The faucet is used quite a lot  Wink
34  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] [DGMS] DigiGems |No Premine|scrypt|No IPO on: January 08, 2015, 11:23:14 AM
Amazing job. You should post your add so users can show their appreciation.

DEcWSeRF1k57XWDRqcSGx8y466uekkGVCr

Thank you  Smiley
35  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] [DGMS] DigiGems |No Premine|scrypt|No IPO on: January 08, 2015, 10:50:02 AM
Hi everyone,

some tools for Digigems are ready!

Another blockchain explorer:
https://bchain.info/DGMS/

A mining calculator:
https://bchain.info/DGMS/tools/calculator

Difficulty graphs:
https://bchain.info/DGMS/diff

Bootstrap.dat download:
https://bchain.info/DGMS/bootstrap.dat

Rich list:
https://bchain.info/DGMS/rich/

And a faucet  Wink
https://bchain.info/DGMS/faucet

Let me know if everything is working correctly. I'll continue supporting Digigems  Smiley
36  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New 1.2.0 Automated Transactions on: December 23, 2014, 02:13:58 PM
Quote
raid 0 is working phenomenally for me.  has anyone actually tested raid 0 and burst plots to make this claim of "not suggesting raid 0" that is being repeated over and over?

Raid 0 is problematic in two ways for burst:
- If one drive fails you have to re-plot the whole raid
- You end up with more disk seeks compared to using each drive on its own. For optimized plots its almost equal, non-optimized may use a lot more, but never less.

Is it going to make a difference if the HDD is 3Gb sata II and 6GB sata III ?


I found a motherboard that can hold up to 440 HDDs x 4GB witch mean 1760TB or if I use this riser card http://www.ebay.com/itm/PCI-Express-PCI-E-X1-X4-X8-X16-to-PCI-32bit-Adapter-Dual-PCI-Bus-Slot-With-USB3-/271651607114?pt=US_Internal_Port_Expansion_Cards&hash=item3f3fb2924a I can go to 840 HDDs x 4GB. I calculated will consume no more then 2.5KW of power

the burst calculator says that I can make 28-30 BTC per month witch mean I can break even in 6 months Is this calc of your saying the truth or is just frictional mambo jambo as all calc-s for cryptocurrency

Please give a link to this motherboard. Looks like some ultra-expensive server-board?

Das pinballdude wrote, you need to be able to read all plots in time.

37  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New version 1.1.5 on: December 17, 2014, 11:30:27 PM
That makes sense.. could that explain the people who had their accounts hacked a little while back?  Seemed like a few people did.

Hacker simply brute forces passwords attempting to find unregistered public keys?

I guess only accounts with weak passwords got hacked. Public keys are 64 bit wide - that's not safe but still too much for the average attacker.

38  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][BURST] Burst | Efficient HDD Mining | New version 1.1.5 on: December 17, 2014, 07:00:28 PM
I would really like to put my few coins on a paper wallet. Is there a service?

You could just print your passphrase to paper. Maybe as QR-code.
39  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Syscoin - Business on the Blockchain on: December 14, 2014, 02:19:23 PM
Hi everyone,

I've added Syscoin to my Blockchain-Explorer:

https://bchain.info/SYS/

Comes with a richlist:

https://bchain.info/SYS/rich

And a mining calc:

https://bchain.info/SYS/tools/calculator

Have fun with it!
40  Alternate cryptocurrencies / Announcements (Altcoins) / Re: ANN: [OPAL] | SuperNET | MARKETPLACE | ANDROID | FILE SHARING | HTML5 WALLET on: December 12, 2014, 05:00:13 PM
Hi everyone,

I've added OPAL to my blockchain-explorer:
https://bchain.info/OPAL/

With a richlist:
https://bchain.info/OPAL/rich/

And an auto-updating bootstrap.dat download:
https://bchain.info/OPAL/bootstrap.dat

Have fun with it!
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