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9661  Bitcoin / Bitcoin Discussion / Re: How? Security of private keys on: March 01, 2012, 09:43:21 AM
BUT then again, bitcoin was designed when mining was astonishingly slow on the cpu. Now we are already 10000X faster, can bitcoin be strengthened if in 5 years GPUs can crack a key in a month?
9662  Bitcoin / Bitcoin Discussion / Re: How? Security of private keys on: March 01, 2012, 09:40:50 AM
Ok I kinda get it now. Just seemed so easy to vanitygen all the valid 1mtgox addresses quickly.

Hmm ok, but on the off chance we before generate the same address, private leys will be identical right? Theres no protection?

I think the best way to think of it is this:

If you eventually find a collision (millions of years with any reasonable amount of resources) the expected amount you will find is [enormous number of keys, call it 10^20] divided by [total bitcoins] = less than one satoshi (tiniest bitcoin unit).

Compare to: Regular identity theft, car accident on the way to the bank, etc.
9663  Bitcoin / Development & Technical Discussion / Re: Vanitygen: Vanity bitcoin address generator [v0.17] on: March 01, 2012, 09:22:11 AM
I will try restarting one and see if it gets the same ones in order.

I started 4 copies of vanitygen but they all use the same rng seed file. Will they all be starting from the same spot? Or is there added entropy even if I use a seed file? Thanks.
Use them all to find the same simple phrase, like 1234, you should find that they each find a different one.
9664  Bitcoin / Bitcoin Discussion / Re: How? Security of private keys on: March 01, 2012, 09:20:59 AM
Hmm ok, but on the off chance we before generate the same address, private leys will be identical right? Theres no protection?
9665  Economy / Currency exchange / Re: Secret way to buy/sell with Paypal on: March 01, 2012, 09:18:57 AM
We could use another shopping cart or market(s) that sell instantly and have low or no fees.
9666  Economy / Currency exchange / Re: Secret way to buy/sell with Paypal on: March 01, 2012, 08:14:03 AM
The seller gets paid in paypal.

It would all be about feedback, like silk road.
9667  Bitcoin / Bitcoin Discussion / Re: How? Security of private keys on: March 01, 2012, 07:56:39 AM
Neither, let someone else reply
9668  Bitcoin / Bitcoin Discussion / Re: How? Security of private keys on: March 01, 2012, 07:47:06 AM
There IS that possibillity right? So IT will happen at least once in the next 10 years where a high value address is attacked and stolen?

Someone will win the lottery.
9669  Bitcoin / Bitcoin Discussion / Re: How? Security of private keys on: March 01, 2012, 07:46:13 AM
Is this just as much luck as solo mining? I may get lucky and get a private key to a high value address?
9670  Bitcoin / Bitcoin Discussion / Re: How? Security of private keys on: March 01, 2012, 07:44:01 AM
LOL, I can generate a 1mtgox address every second, I can collect millions. I'm asking what IF they end up using an address that I have the private ley to? There is no protection is there? So someone somewhere can get lucky and get a private key?
9671  Economy / Currency exchange / Secret way to buy/sell with Paypal on: March 01, 2012, 07:39:03 AM
Is this a good idea? I setup a secret tor service where buyers and sellers come together like that drug site. We use mtgox rates plus a paypal markup then to cover ourself, a buyer lists a random item on ebay and the seller purchases it. Secretly, the seller ships a private key.

1. Paypal has no clue, if anything they can go under cover as a buyer and figure out the seller paypals. Quite a lot of work and each one has to be done seperately.

2. We use internal and ebay feedback for trust.
9672  Bitcoin / Bitcoin Discussion / How? Security of private keys on: March 01, 2012, 07:35:21 AM
I don't understand this. I am generating addresses using vanitygen and here are the scenarios:

1. I generate many 1mtgox addresses. I have the private keys, what if one day mtgox uses an address i have? What stops me from spending all their coins since i already have the private key?

2. Can private keys somehow be different for the same address and the correct one can be checked against the blockchain?

3. It may take months, but why can't I vanitygen (thought its not really vanity) mtgox's green address or any high value address? Then empty it?

I would purchase 9x 6990s to do this, what stops me?
9673  Bitcoin / Development & Technical Discussion / Re: Vanitygen: Vanity bitcoin address generator [v0.17] on: March 01, 2012, 07:25:34 AM
I started 4 copies of vanitygen but they all use the same rng seed file. Will they all be starting from the same spot? Or is there added entropy even if I use a seed file? Thanks.
9674  Bitcoin / Mining / Re: Anyone have a Bitoin Rigs Professional Rig 2000? on: January 31, 2012, 01:04:54 AM
One core hits 96C during summer. SOLID, not a problem. Bitcoin Rigs has water cooling now which I don't have. I'm not paying extra for that when I don't need it.
9675  Bitcoin / Mining / Re: Anyone have a Bitoin Rigs Professional Rig 2000? on: January 29, 2012, 01:19:46 PM
Sure. right now its running at 83-91 C
I've had it for 7 months, solid.

Hey I have a quick question. They are using a HAF X case for that rig, correct? At what kind of temperatures are your 3 GPUs running? Thanks for helping me out Smiley
9676  Bitcoin / Mining / Re: Anyone have a Bitoin Rigs Professional Rig 2000? on: December 18, 2011, 01:25:36 AM
Yup Smiley Even imaged my own known good configuration

Brock sent me the image a few days ago and everything is perfect. Bitcoinrigs are solid and well built. It was my fault for screwing up the software and it took a few days to get the image but everything is fine now. I would buy again.

Hopefully you now made a backup of the image right?
9677  Bitcoin / Mining / Re: Anyone have a Bitoin Rigs Professional Rig 2000? on: December 17, 2011, 11:57:40 PM
Brock sent me the image a few days ago and everything is perfect. Bitcoinrigs are solid and well built. It was my fault for screwing up the software and it took a few days to get the image but everything is fine now. I would buy again.
9678  Other / Obsolete (selling) / [SELL] 1 year ShopRunner memebership Free 2-Day Shipping NewEgg ToysRus & more on: December 15, 2011, 08:17:28 AM
SOLD

2 BTC

1 year ShopRunner.com membership ($79 value)
ShopRunner

One-Year Membership for Unlimited Free Two-Day Shipping, Free Returns, and Member Deals from Great Stores

ShopRunner 1 year code will be emailed, nothing mailed, no credit card required while signing up.


List of stores:

http://www.shoprunner.com/trial/free-shipping-best-stores.php
9679  Other / Obsolete (selling) / Re: [SELL] Bitcoin Mining Desktop - TWO ATI AMD Radeon HD 6970 video cards on: December 12, 2011, 07:14:12 PM
 Thermaltake premium power supply
 Motherboard: MSI 870-G45 (MS-7599) with Military Class Components

what "700w" PSU is in there?
9680  Bitcoin / Mining / Re: Anyone have a Bitoin Rigs Professional Rig 2000? on: December 11, 2011, 08:15:19 PM
Site doesn't work, too late, and do you mind giving me an image? It may work.

buy from me at bitcoinmachines.com and I provide support! Smiley
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