Thanks for thinking about those still on the 32bit chips 

Wow, this is the biggest jump I've ever seen. Nearly a 250% increase in speed from the stock version, amazing.  Now let's see how stable it is  

Yeah, runs every bit as fast as the Intel tweaked ones from what I could tell in testing, plus the program is half the size compiled. 

The ANDS aren't meant to prove anything. They are milestones for a plan that give a probable difficulty in reach each milestone in anecdotal form. Meaning, if my goal was to buy up the world's gold supply. The plan would be as simple as step 1, buy all the gold, step 2, I have all the gold. But we know there would be a lot of steps in between to achieve that goal.

This topic had a 5 step plan for the goal on how to profit from a Bit Coin attack using a Bot Network and filling in the in-between stuff just further documents the difficulty in it, that's all. 

But I know what you mean and I agree, the botnet guys are making enough money not to really care about a Bit Coin scam at the moment.

Yeah, I thought the private key had to be in the mix somewhere. It kind of adds another randomness though, you have to find the hash that collides with another public key and at the same time, the private key has to be weak enough to break. I'm not saying it's impossible, but it introduces 2 variables into the reverse collision finding.

Basically, one would build a rainbow table of weak private keys and then have to compare those to public hashes and then have to hope that someone out there has a hash that happens to be a part of that attack. Not impossible of course, but how feasible even if computers were 100 times faster in 10 years?

[edit] ok, re-read what you wrote, the public key is generated from the private key, not independently. So just finding a weak public key is the issue.

What they often don't mention though is *collision generating* still takes a lot of CPU time.

If I figure out that Public Key 123456 generates Hash ABCD
and
Public Key 654321 also generates Hash ABCD
I'm still left without the Private Key.

But from what you are saying, all I need is Public Key 654321 and I can spend coin pretending to be Public Key 123456.

Very nice. *another reason why I love open source*

As I understand it then, and please correct me if I'm wrong

Since the hash of the public key is smaller than the actual public key itself, one need only find a collision that matches the hash and when that collision is found you'll know the public/private key combo. Then you simply spend coin using the known ones and the other clients will think it's a valid transfer because the clients are only concerned that your hash matches the hash of the victim and the transaction is recorded for all time.

Currently the hash is 35 characters long, alpha-numeric
26 (upper case) +26 (lower case) +10 (numbers) = 62 possible per character
So we have 541,638,008,296,341,754,635,824,011,376,225,346,986,572,413,939,634,062,667,808,768 possible combinations.

So I think we have about half of much work to do compared to going brute force against the main private/public key. Never hurts to plan for the future 

I like it too, it's straight to the point and doesn't blame/assume things about the market. It just presents what is there, the reader can decide for him/her self how good/bad things are going. 

I think I know what he means, but I was certain that the odds of doing it a bit too random to make an attack out of it.

Oh I was wondering about that, I actually sent the 0.01 back, hehe.

It's open source software, better to discuss it now than try to keep it a secret for someone else to discover and they may not be willing to share any details.

That's what I was expecting too, but I was using napkin math, glad you took the time to work out the real numbers. Either someone has stopped the search for SETI or Gene Finding to start making Bit Coins or a lot of people have installed the client on their PC and have it churning 24/7 to mine coins. I guess since all the downloads come from sourceforge, I wonder how many downloads have taken place in the last few months? I know I've downloaded the client hundreds of times now to install it 

Optimizations mainly. When the program is being compiled on Windows, certainly optimizations make the program more efficient.

On Linux, we have both 32bit and 64bit builds to take advantage of the 64bit arch of the system. On windows, there was only a 32bit build.

The blocks per hour try to remain steady, the difficulty just goes down. Basically he's saying "I made it hard for everyone because my machine(s) were winning every time", now that the machines are shut off, "you all should be winning the blocks everytime".

So the rate remains constant, but everyone should start generating more blocks (perhaps a few per day instead of 1 every 2 weeks like before).

Whatever the market was that day, should be able to look up the history since he has a nice graph on it now. https://www.bitcoinmarket.com/

Given that 70,000 blocks = roughly 3.5 million bit coins. Having 85k would give him about 2.4% of the market. I know a lot of the market exchange sites for Bit Coin have at least that or more BTC for the trade volume. I would be curious myself 

Yes, and the next release will speed that many times over, I've tested both the Windows and Linux client, major speed increase on block updates in them.

Your not slow, it's just cryptic talk really. Basically, people are worried he is going to mess with the market. Mainly, they thought he had a 1,000 CPU farm churning out Bit Coins like he was printing money. Which going by his own words, he was leading everyone to believe. At the same time though, many stories about Bit Coin were spreading across the Internet, so traffic to the site increased, many people downloaded the client and set their PC to start "generating coin" so to speak.

Since Bit Coin regulates coin production based on CPU power, all these new people running the client were adding more CPU power to the pool. Thus, the difficulty of each block generation (50 BTC) in this case started to increase rapidly. He used this situation to offer up no proof of nothing more than he had a server farm out there somewhere churning Bit Coins. At the same time, everyone is hoping on board Bit Coin and naturally increasing the difficulty of block generation.

So, people would cross correlate that since he said he had a server farm making coins and the difficulty had jumped up so rapidly, they assumed he was telling the truth.

The breakdown though is given the short amount of time he claimed to have generated 85K of Bit Coin went against of the logic of just how many BTC can actually be generated. According to his own tweets, he was producing 85K in under a few days. By logic, he can't because it would take an 11 day straight coin generating server farm to do this, plus no one else would be able to generate any coin. I was generating plenty during the time he claims to have his server farm up and running, so on that front he was lying I believe.

He now claims that he shut down that server farm long ago and that he has all he needs. Fair enough, if that's true, then by block 70,560 the difficulty of BTC coin generation will take a nose dive.

On another front, he mentions how much he spent using cloud computing to generate all the BTC. I use cloud computing myself and I know how much it cost to use that much CPU power and it's certainly not the few hundred dollars he claims. So, again, I believe he was caught in another lie.

And finally the third reason, and one I don't ever mention, is because some members at this forum have way more CPU resources than he claim to have and they know what the generation rates for them was before and after his claims. His CPU power doesn't pan out against real world experience or else he had the worlds slowest 1,000 core setup.

I have to disagree, but only for one reason. He wanted a large amount of BTC and the easiest way was to take advantage of the situation when Bit Coin had a lot of press and he knew the difficulty of all these new people joining would increase and thus make it much harder to generate BTC. Using this, he puts out a claim that he has a massive server farm running somewhere and how he's out to show that BTC can be bought out with enough money. At first, it seems logical to people, so they feel the current BTC they have will probably be worthless. He buys up all the BTC he can at fire sale prices and then ends up with a lot of BTC when it's done.

What he does with it, I'll leave that to him. But to go through all of that for only 85K BTC is really just a drop in bucket compared to how much some people have right now.

Only he knows the truth, but in the end after some time, we will at least know if his methods were false or not. What he does with his real or made up amounts of BTC is his own business and I'm not concerned about that. I'm only concerned when I see someone trying to use scare tactics to take advantage of a market. I compare it to someone claiming they have invented a device that can turn water into gold for only $9.99, the gold market plummets, someone buys all the gold at cheap prices, then later people realize that the original water to gold machine was just a lie. The price goes back up, someone gets very rich 

They limit to just the top half of the world? That's lame of them, go figure. 

Once block 70560 comes around, we will know if the other part (Nenolod's) plans were a lie as well.