Well, there seems to be a mix up here: we are discussing AES (Rijndael)
not DES :)


> Of course brute force will work. DES is fairly non-intensive, as far as
> encryptions go. Moreover, using FPGAs to build dedicated DES cracking
> machines is both feasible and relatively cheap. And, it has been done. The
> latest iteration of the COPACOBANA does its business in the span of one
> single day. This machine was built in 2006 and cost $10000 at the time. I
> would not be surprised if the cost today would be less than one tenth of
> that. Moreover, the maximum WPA key length is 64 characters, which is
> pathetic, especially when restricted to the ASCII keymap.
>
> There already exists cloud services for DES cracking :) and it's not that
> expensive, either. I don't think trusting the cloud service in question is
> much of an issue: a key is useless unless you know where it fits. Also, if
> you submit a DES key, chances are you are the attacker and that you
> couldn't care less about any breaches in security your adversary might
> experience ;)
>
> On 31 July 2012 14:03, <[email protected]> wrote:
>
>> :) Brute Force using that approach will never work; you could try
>> exploiting weaknesses in mathematical implementations of the algorithm
>> by
>> programmers and mathematical weaknesses in the hardware.
>>
>> The cloud is a good thing , and makes business sense (though it may not
>> be
>> so, with the Patent Department): imagine how many under utilized servers
>> out there yet they pay licenses, support fees, admin personnel, utility
>> bills, etc (on some OSs, just running one server machine as an
>> authentication server, can give you authentication capability for more
>> than 25,000 users; now imagine how many under utilized database servers,
>> email servers, etc out there). A cloud solution lowers your TCO and
>> gives
>> you better ROI. :)
>>
>> Of course, the IT department is not impressed by the above, because they
>> need to access the hardware (and also want to control the IT budget),
>> besides they don't trust the guys in the cloud, yet they are the same
>> guys
>> who trust facebook, google, the ISPs, the Telcos, the banks, etc :)
>>
>>
>>
>> > Well, I would of course use a cloud service for that :P either that,
>> or
>> > one
>> > of the clusters at our university.
>> >
>> > On 31 July 2012 13:30, <[email protected]> wrote:
>> >
>> >> :) Ah, cracking AES 256 and "higher", don't think you have those
>> >> resources; probably thats for departments with serious scary budget
>> >> figures.
>> >>
>> >> Well, for the case of WEP, when a paper detailing its weaknesses was
>> >> submitted to the internet community, they brushed it off saying what
>> it
>> >> detailed was only theoretical and could never occur in practice, yet
>> >> when
>> >> WEP was finally broken; the media reported it as an off the shelf
>> hack
>> >> activity. :)
>> >>
>> >>
>> >> > Well, hum. :P
>> >> >
>> >> > I wonder how long it'll take until all the WPA2 Enterprise networks
>> >> have
>> >> > been secured. Why do I have to be in the middle of twenty-years-ago
>> >> state
>> >> > *
>> >> > now*? I want to be home and do some rampant WPA2E cracking!
>> >> >
>> >> > On 31 July 2012 12:52, <[email protected]>
>> wrote:
>> >> >
>> >> >> Does your MS interpretation sound like
>> >> >> the  x-400 e mail format or the seven layer OSI standard? :)
>> >> >>
>> >> >>
>> >> >> > What do you mean "despite"? :P I've regularly been using my own
>> VPN
>> >> >> since
>> >> >> > 2007 when I had to start using a PPTP connection regularly. "MS"
>> >> >> > translates
>> >> >> > to "closed, flawed, and eventually defeated" in my book.
>> >> >> >
>> >> >> > On 31 July 2012 12:27, <[email protected]>
>> >> wrote:
>> >> >> >
>> >> >> >> :) But PPTP has always had its issues despite its being from
>> MS,
>> >> L2F
>> >> >> >> from
>> >> >> >> the other vendor, the same case, L2TP an attempt to combine the
>> >> above
>> >> >> >> two
>> >> >> >> also is good when run with IPSec doing the encryption, yet
>> IPSec
>> >> also
>> >> >> >> has
>> >> >> >> its own issues.
>> >> >> >>
>> >> >> >> Maybe SSL can do, save for its reliance on the PKI..... and
>> some
>> >> >> >> restrictions on key usage...
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >> > Well, at least PPTP with MS-CHAPv2 authentication is.
>> >> >> >> >
>> >> >> >> >
>> >> >> >>
>> >> >>
>> >>
>> http://www.cso.com.au/article/432039/tools_released_defcon_can_crack_widely_used_pptp_encryption_under_day/
>> >> >> >> >
>> >> >> >> > I can't say I'm very surprised. I've always done all my
>> business
>> >> >> >> through
>> >> >> >> a
>> >> >> >> > (better) VPN when on such a network, simply because the "MS"
>> in
>> >> >> >> > "MS-CHAPv2"
>> >> >> >> > always made me nervous.
>> >> >> >> > _______________________________________________
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>> >> >> >> >
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>> >> >> >> _______________________________________________
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>> >> >> >>
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>> >> >> them
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>> >> >> > _______________________________________________
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>> >> >> >
>> >> >> > Send messages to this mailing list by addressing e-mails to:
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>> >> >> > The above comments and data are owned by whoever posted them
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>> >> >> > attachments if any). The mailing list host is not responsible
>> for
>> >> them
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>> >> >>
>> >> >>
>> >> >> _______________________________________________
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>> >> >>
>> >> >> Send messages to this mailing list by addressing e-mails to:
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>> >> >>
>> >> >> The above comments and data are owned by whoever posted them
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>> >> >> attachments if any). The mailing list host is not responsible for
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>> >> >> any way.
>> >> >>
>> >> > _______________________________________________
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>> >> >
>> >> > Send messages to this mailing list by addressing e-mails to:
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>> >> >
>> >> > The above comments and data are owned by whoever posted them
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>> >> > attachments if any). The mailing list host is not responsible for
>> them
>> >> in
>> >> > any way.
>> >>
>> >>
>> >> _______________________________________________
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>> >>
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>> >> attachments if any). The mailing list host is not responsible for
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>> >> in
>> >> any way.
>> >>
>> > _______________________________________________
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>> >
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>>
>> _______________________________________________
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>>
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>>
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>>
> _______________________________________________
> The Uganda Linux User Group: http://linux.or.ug
>
> Send messages to this mailing list by addressing e-mails to:
> [email protected]
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>
> The Uganda LUG mailing list is generously hosted by INFOCOM:
> http://www.infocom.co.ug/
>
> The above comments and data are owned by whoever posted them (including
> attachments if any). The mailing list host is not responsible for them in
> any way.


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