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+--- Thread: Building a password cracking machine (/thread-5621.html)
Building a password cracking machine - Crackattack - 07-08-2016
I'm looking to build a high end cracking machine
I've 25,000 available to spend
I was thinking to build a machine with a dual xeon cpu motherboard with the two E7 xeons and 4 titan x's in sli
Here's my question while 4 titan x's don't really make a super crazy cracking machine if I had more money
How many titan x's would it take to crack any passwords up to 12-16 characters with capitals /characters / numbers etc with brute force type attack with the process only taking an hour or two
RE: Building a password cracking machine - rico - 07-08-2016
If you don't know enough about hashcat to know not to use SLI - and also not specify what hash type you even intend on cracking then I'm not sure you should be building a 25K cracking rig...
I think you should either give up (len 12 can be a formidable keyspace) or buy a pre-built rig like Saggita make, e.g. https://sagitta.pw/
RE: Building a password cracking machine - Crackattack - 07-08-2016
Yea I'm aware sli isn't the best way, I'm asking how many gpu could you put on a setup like brutalis 8 gpu doesn't sound much
Would 20 gpu be able a crack 90 percent of user passwords on the net
RE: Building a password cracking machine - rico - 07-08-2016
(07-08-2016, 11:20 PM)Crackattack Wrote: Yea I'm aware sli isn't the best way, I'm asking how many gpu could you put on a setup like brutalis 8 gpu doesn't sound much
No idea.
(07-08-2016, 11:20 PM)Crackattack Wrote: Would 20 gpu be able a crack 90 percent of user passwords on the net
No. You could provide more info like I asked in my first post but the answer is still no.
RE: Building a password cracking machine - inprivate - 07-09-2016
do you think about two or more Pro duo CF system?
RE: Building a password cracking machine - atom - 07-09-2016
(07-08-2016, 11:20 PM)Crackattack Wrote: Yea I'm aware sli isn't the best way, I'm asking how many gpu could you put on a setup like brutalis 8 gpu doesn't sound much
You can not do 20 GPU on a single motherboard. It's easier to have many GPU on many computer and then bundle them over network.
RE: Building a password cracking machine - kiara - 07-10-2016
(07-08-2016, 11:00 PM)Crackattack Wrote: How many titan x's would it take to crack any passwords up to 12-16 characters with capitals /characters / numbers etc with brute force type attack with the process only taking an hour or two
lets start with,
gtx 1080 cost less than titan x and perform better.
so u should go with them.
next thing,
it depend on what alogirthim is being use..
a simple example,
8 gtx 1080 have the power to crack 200.3 GH/s per sec
lower case (26) + upper case (26) + num (10) + special char only !@#$%^&*()_+-= (14) = 76 power 12 is
37133262473195501387776 possibility , now do the math how long that will take u with 200Gh/s
(185666312365.977 second +-)
RE: Building a password cracking machine - inprivate - 07-10-2016
(07-10-2016, 02:03 AM)kiara Wrote:about 5887 years(07-08-2016, 11:00 PM)Crackattack Wrote: How many titan x's would it take to crack any passwords up to 12-16 characters with capitals /characters / numbers etc with brute force type attack with the process only taking an hour or two
lets start with,
gtx 1080 cost less than titan x and perform better.
so u should go with them.
next thing,
it depend on what alogirthim is being use..
a simple example,
8 gtx 1080 have the power to crack 200.3 GH/s per sec
lower case (26) + upper case (26) + num (10) + special char only !@#$%^&*()_+-= (14) = 76 power 12 is
37133262473195501387776 possibility , now do the math how long that will take u with 200Gh/s
(185666312365.977 second +-)
RE: Building a password cracking machine - disco - 07-21-2016
It's been awhile since I took basic algebra, but it would seem 76^12/25x=72000 seconds gives you the number of cards you need. If I did the math correctly you only need around 200 Quadrillion gtx 1080 cards to brute force 12 character hashes in 2 hours. So with GTX 1080 cards being around $700 today, you only need around 140 Quintillion dollars worth of GPUs.[/color]
(07-10-2016, 04:51 AM)inprivate Wrote:(07-10-2016, 02:03 AM)kiara Wrote:about 5887 years(07-08-2016, 11:00 PM)Crackattack Wrote: How many titan x's would it take to crack any passwords up to 12-16 characters with capitals /characters / numbers etc with brute force type attack with the process only taking an hour or two
lets start with,
gtx 1080 cost less than titan x and perform better.
so u should go with them.
next thing,
it depend on what alogirthim is being use..
a simple example,
8 gtx 1080 have the power to crack 200.3 GH/s per sec
lower case (26) + upper case (26) + num (10) + special char only !@#$%^&*()_+-= (14) = 76 power 12 is
37133262473195501387776 possibility , now do the math how long that will take u with 200Gh/s
(185666312365.977 second +-)
RE: Building a password cracking machine - atom - 07-22-2016
Don't forget the power consumption