Search content
Sort by

Showing 13 of 13 results by kazriko
Post
Topic
Board Goods
Re: WTS Super Slim PS3 250GB(Like New)
by
kazriko
on 16/05/2013, 20:28:06 UTC
Ok, be sure to update the title as such. Smiley
Post
Topic
Board Goods
Re: WTS Super Slim PS3 250GB(Like New)
by
kazriko
on 16/05/2013, 20:01:30 UTC
So tempting. I'm not sure if I could afford it just yet though. I'd definitely want to do some sort of escrow though with a purchase this large.
Post
Topic
Board Goods
Re: Would you buy: PSP radiant red 3000 series?
by
kazriko
on 16/05/2013, 19:23:49 UTC
I'm interested, but I don't have enough bitcoins to buy it at the moment. I'd have to buy some millibitcoins to afford it.

I'm thinking 0.4 or 0.5 would be about the best I could do with it. That's around what they're going for at Gamestop.

Would it be shipped from the US or somewhere else? Somewhere else might make the shipping too expensive.

Also, I'm not really interested in the games that come with it. You could sell those separately perhaps.
Post
Topic
Board Archival
Re: The Bank of Bitcoin- The World's Most Secure Bitcoin Service- Unhackable!
by
kazriko
on 16/05/2013, 01:04:17 UTC
The network fees are optional though. The larger fee you pay, the faster your transaction gets into a block and the less likely it'll get orphaned, but it's certainly not a requirement.
Post
Topic
Board Archival
Re: The Bank of Bitcoin- The World's Most Secure Bitcoin Service- Unhackable!
by
kazriko
on 15/05/2013, 22:51:22 UTC
kazriko - You may realize that you can easily view "Page Source" from most browsers.  This makes it possible for anyone with the html and javascript savvy to simply examine the source code and verify that the Private Keys are never transmitted over the Internet.  Oe could also check the similarities between the page source of our Paper Vault pages and the open-source code available at bitaddress.org and in https://www.strongcoin.com/downloads/offlineTransaction.zip .  We have integrated these open-source tools into our own service in a way that makes them much more convenient use.  You can examine both our code and their code for yourself, if you like.

And yes, I would agree that if the user's computer is hacked or compromised (perhaps in a way which would allow a hacker to see everything the user does or types on his computer) then this would obviously introduce a security flaw.  I would like to point out that such a compromised computer would also be vulnerable in the event of dealing with traditional financial transactions as well.  We cannot guarantee the security of every computer in the world, but I would like to point out the the very security-concerned (maybe paranoid is too strong a word) could use a live-cd operating system for dealing with The Bank of Bitcoin, but that would apply to using any other online Bitcoin service as well.

As for the fee: we do not charge for creating a Paper Vault.  The 0.0001 BTC fee you referred to is for the creation of an additional Auxiliary Bitcoin Address for your Active Storage, not for a Paper Vault.  That fee (and all of our fees) is deducted from your Active Storage, never from Paper Vaults.  (It is inherently impossible to deduct fees from Paper Vaults, in fact.)

Thanks for that. I probably wouldn't be able to spot anything like that myself in the Javascript code as I'm not anything like a cryptography professional. That's a pretty specialized field.

The offline transaction zip seems like it would be good for the hyper security conscious.

I don't think that I would have any uses for the site, but it is interesting. It's basically a hybrid between the pure paper model and things like coinbase.
Post
Topic
Board Archival
Re: The Bank of Bitcoin- The World's Most Secure Bitcoin Service- Unhackable!
by
kazriko
on 15/05/2013, 21:34:16 UTC
Krazriko and Kruncha- Thanks very much for your understanding and input. Whenever we deal with Private Keys, nothing is sent or seen over the internet. Regarding the generation of your Private Keys, this is done on a page using client-side javascript and is never revealed online or transmitted in any way. Your Private Key is in fact not seen online, or by us. For someone to get into the system you referred to (the client-side webpage where you enter your Private Key), they would have to be hacked into your individual computer and watching what you were typing. When you want to create a transaction, you do enter the Private Key on your computer on the client-side webpage, and when you click submit the Private Key is not submitted- ONLY the transaction string and other public information, like your public Bitcoin Address as well as that of the recipient.

The webpage, including the java-script program, is sent over the internet onto the user's computer- and then, on the user's computer the Private Key is generated. However, if you're paranoid, once you clicked on the "Create Paper Vault" page, you could immediately disconnect your ethernet or wifi. You could even save the page, go offline, load the saved page and generate new keys. There really is no need for that, but if it makes you feel better then I guess it works Smiley

If they're online, code could be built in to send that key. You'd want someone to be able to verify that this isn't happening. The going offline method would be one way to do it, but there's always the possibility that the page they downloaded had some sort of back door. It would be nice to have some additional assurance, or some independent verification of that javascript program. Also, that still leaves you with the possibility that their system is hacked, and thus that private key would be available to those who hacked it. The same risk that you have with any other bitcoin wallet on their computer. (Though, slightly less as they would have to be hacked before they make the key, and they wouldn't be able to get it afterward unless it was stored in their caches somewhere.)

Quote
Furthermore, you don't have to send the whole contents of your Paper Wallet to your Active Wallet when you want to access your Bitcoins. You can choose exactly how much you want to send to the Active Wallet. I hope I addressed that concern, I had to contact one of our programmers to double-check that my reasoning was correct.  

That's true, you could do it that way, but you're opening yourself up to having the rest of the balance stolen if you don't use the entire balance. That's because every time they use that paper wallet, if the device they use it with is compromised then the private key will have been stolen. The only way to be sure that isn't the case is to dump the remaining funds into a new one that has never touched an online computer. Though, this is getting into the slightly more paranoid aspects of paper wallet security.

Only close-to-unhackable way is to use a OS image that has never been online to generate the wallet, then only use the private key for each wallet once. Then you're only worrying about weaknesses in the wallet generation software and OS that is used, and the security of those pieces of paper. That would take a much more sophisticated hack. (Similar to the one I was discussing above with verifying the javascript program independently)

Though, it does make me wonder. You're getting your 0.0001 fee per wallet generated, how do you enforce that? Do you just charge that per public key added to your system?
Post
Topic
Board Archival
Re: The Bank of Bitcoin- The World's Most Secure Bitcoin Service- Unhackable!
by
kazriko
on 15/05/2013, 16:36:06 UTC
An interesting idea, but it goes against some of the protections of having a paper wallet in the first place. The paper wallet idea is that the key exists only as a barcode on a piece of paper and has never been exposed to the internet at all. The best way to generate one of these is completely offline on a dumb printer. The best way to use them is as a savings account, and when you do a withdrawal, you pull the entire thing out all at once, transfer the part you want to spend to an active wallet, and put the rest back into a new paper wallet.

With this, your private key is probably seen on the internet at least once when it is created, and if they were unscrupulous they could store it there when that happens. Also, every time you spend money it has exposure to the internet. This is where the unhackable thing falls apart. If someone did get into their systems or into the system you use to scan your private key paper wallet in, then they can spend anything that you don't use from your wallet in that transaction.

So, if it's legitimate, it could be a slightly more secure version of the current online wallets. If not, they could be accumulating private keys until they get enough stored up that it's worth filching them all. The only way to be sure it's the former and not the latter would be offline generation of the paper vaults.
Post
Topic
Board Beginners & Help
Re: How many bitcoins do you have?
by
kazriko
on 13/05/2013, 00:50:38 UTC
Why aren't you people mining litecoins with your video card?

http://coinchoose.com/

I might do that with my A6 system. It's only getting 35mh/s on bitcoin.
Post
Topic
Board Beginners & Help
Re: Any Merchants Accepting Bitcoins in Non-Bitcoin Related Industry?
by
kazriko
on 13/05/2013, 00:36:56 UTC
I think many who accept bitcoin are using things like Coinbase where the money can be quickly converted to USD so they don't need to worry about the BTC price dropping.

I've actually debated buying PSN cards for people in other areas of the world using bitcoin as an exchange medium, but it's a bit on the risky side.
Post
Topic
Board Beginners & Help
Re: ATI drivers sucks
by
kazriko
on 13/05/2013, 00:30:41 UTC
Seriously every time I update my ATI drivers I end up spending 2 days fixing all the things that went wrong because of it.  You think I'd have learned by now, I've been using their crap since 2005.  Next time I'm going with Nvida.

I mentioned in another thread...

Have you cold-booted your system? I've found that my ATI cards sometimes flake out and cause bluescreens if I reboot without coldbooting.
Post
Topic
Board Beginners & Help
Re: What's your Mhash/s? (Pissing contest here)
by
kazriko
on 12/05/2013, 23:51:46 UTC
Nothing now thanks to @#%$@%$ ATI's @#%@@%##@ POS drivers screwing up everything.  Miner doesn't even work now when I try to rollback the driver version to the one I had that used to work. $#@@#$%$$%%&#ETW#^%Q@$#Q

Did you try cold-booting (Power completely off then back on)? My 5870 was locking up and bluescreening every hour for about a day. It turns out that a windows update had rebooted the computer. I now make sure that I cold boot every time I do a reboot.

My 5870 is getting 367mhash. I know it's low, but I don't feel like doing the fiddling to bring it up to 400mh/s.
Post
Topic
Board Beginners & Help
Re: How many bitcoins do you have?
by
kazriko
on 12/05/2013, 23:47:20 UTC
I started mining with my video card but never got more than 0.001 BTC.  What mining pool are you in?

Bitminter, but I do have a fairly powerful 3 year old card. AMD 5870.
Post
Topic
Board Beginners & Help
Re: How many bitcoins do you have?
by
kazriko
on 12/05/2013, 23:03:11 UTC
I started mining with my 3 year old video card, and have only managed about 0.4. But... I hardly have any left because I keep finding ways to spend them. Donated to Newsblur and then bought the Humble Doublefine Bundle...

At this rate, I'll never get to my $400 savings level by the end of the year to buy a PS4.