[foofus-tools] off-Topic: Bitcoin and password cracking?

[Richard Miles]

Hi Tak,

Thanks. I got the same impression, but I got unsure since people
recently is talking about do a lot of profit with bitcoins with GPU
cards and also cracking hashes effectively with bitcoin network...

Thanks for answer.

On Mon, Aug 22, 2011 at 4:01 PM, tak shacks <tak.31337 at gmail.com> wrote:
> Hey Richard,
>
> I'm pretty sure the section on hash cracking etc. was about stealing
> bitcoins from trojan'ed victims. Normally wallet.dat is unencrypted
> therefore can easily be pick however pocketed. I could be wrong on that
> however, it's just what I got from the power-point.
>
> On Mon, Aug 22, 2011 at 3:25 PM, Richard Miles
> <richard.k.miles at googlemail.com> wrote:
>>
>> Hi Tak
>>
>> Thanks for answer and it make sense. But what about Bitcoin to crack
>> password hashes or own profit?
>>
>> Thanks
>>
>> On Mon, Aug 22, 2011 at 12:37 PM, tak shacks <tak.31337 at gmail.com> wrote:
>> > It made some good points about how using the bitcoin currency is a good
>> > way
>> > to stay anonymous when trying to scam people. If you have them send
>> > money to
>> > an address, or account it's difficult to stay anonymous unless the
>> > account
>> > is someone elses and compromised. with bitcoin it's all virtual so
>> > anonymity
>> > is possible.
>> >
>> > On Sun, Aug 21, 2011 at 11:04 AM, Richard Miles
>> > <richard.k.miles at googlemail.com> wrote:
>> >>
>> >> Hi foofus members,
>> >>
>> >> First of all sorry for off-topic, but this sound interesting and I
>> >> know that foofus guys are always playing with everything that is
>> >> related with hacking and password cracking so I decided to send it
>> >> here, I hope you don't mind.
>> >>
>> >> I never used Bitcoins and it's not very popular with my circle of
>> >> friend, but a presentation entitled "Hacking the Global Economy with
>> >> GPUs or How I Learned to Stop Worrying and Love Bitcoin" called my
>> >> attention, however it's very confuse (at least to me).
>> >>
>> >>
>> >>
>> >> http://this-download-would-be-faster-with-a-premium-account-at-good.net/dl/1483089/0/0/1313942385/219be7f80763b020d6319ca8e9afaa03e0a035d9/k4r3lj/DEFCON19/DEFCON-19-Skunkworks-Bitcoin.pdf
>> >>
>> >> I'm a bit unsure about what is the goal of the preso and real usage of
>> >> GPUs and hash cracking with bitcoins. The author gave the idea that it
>> >> can be used as a botnet and since there is a lot of GPU systems it
>> >> could be a wonderful network for distributed hash password cracking if
>> >> the price to do it is acceptable (since Amazon EC2 is expensive).
>> >> Anyone has any experience with it?
>> >>
>> >> Or, maybe the goal of this people is just use Bitcoin to be rich with
>> >> all this power based on the GPUs "printing" money, which also is a
>> >> confusing concept to me and Wikipedia say it may not be that easy
>> >> anymore
>> >>
>> >> "The proof-of-work problems are especially suitable to GPUs and
>> >> specialized hardware. Because of the growing computing power behind
>> >> the system driving the difficulty to high levels, individual
>> >> contributors with typical CPUs are no longer likely to solve a block
>> >> on their own but can still receive part of the Bitcoin generated in a
>> >> new block by contributing their processing power to a mining pool.[26]
>> >> This increased difficulty makes it cost prohibitive for an attacker to
>> >> perform double-spending attacks so it is beneficial to the system."
>> >>
>> >> All answers are very welcome and sorry for off-topic.
>> >>
>> >> Cheers
>> >> _______________________________________________
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>> >> foofus-tools at lists.foofus.net
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>> >
>> >
>> >
>> > --
>> > Regards,
>> >               -tak
>> >
>> > __________________________________________________________________________________
>> >
>> > ~tak
>> > http://www.taksmind.org/
>> > https://edge.launchpad.net/~tak
>> > irc.esper.net         - tak
>> > irc.freenode.com   - tak11
>> >
>> >
>> >
>> >
>> > _______________________________________________
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>> >
>> >
>
>
>
> --
> Regards,
>               -tak
> __________________________________________________________________________________
>
> ~tak
> http://www.taksmind.org/
> https://edge.launchpad.net/~tak
> irc.esper.net         - tak
> irc.freenode.com   - tak11
>
>
>
>
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