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Author Topic: crack my sha256 hash, reward of up to $1000 USD  (Read 4675 times)
solareclipse64236
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November 05, 2013, 01:35:06 AM
 #1

crack my sha256 hash, reward of up to $1000 USD

I would prefer to leave it at 1 BTC, but definitely up to $1000 USD

I can't find anyone to do it for me

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DeathAndTaxes
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November 05, 2013, 01:37:50 AM
 #2

It is not economically feasible.  Not at $100, not at $1,000, maybe at $100,000. 
tacoman71
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November 05, 2013, 01:42:37 AM
 #3

Well I got nothing better to do so can you PM me the hash?

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November 05, 2013, 02:05:26 AM
 #4

I just read somewhere that the energy required to brute force a SHA256 hash is greater than that available from the Sun... in total... ever.

However, if this is not some random bounty for a very randomly chosen hash, and you might have used English words and phrases to generate a passphrase seed for the hash, then it might be possible to break it in a less than infinite time frame.

If you've got any clues as to the sources of phrases, i.e. "Might be something from a Harry Potter" book, then someone might even manage it this year. Most clues you can give, the higher chance of success, assuming this is attempting to recover a wallet with forgotten passphrase.

Anyway, good luck with that, as they say.


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November 05, 2013, 03:57:53 AM
 #5

In his countless other threads OP indicated it is 10 digits random (A-Z,a-z,0-9).
So 10 digits @ 64 values per digit  64^10 = 83,929,936,5868,340,224 combinations
7970 is ~ 1 billion SHA-256 attempts using hashcat.

83,929,936,5868,340,224 / 1,000,000,000 / 60 / 60 / 24 / 365 = 26 GPU years.  50% chance in half that so 13 GPU years.   Someone with a 13 GPU farm running 24/7/365 for an entire year would have a 50% chance of cracking it.

$1,000 is a joke.

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November 05, 2013, 05:26:34 AM
 #6

Are you guys really experienced at cracking in the real world?

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keysersozeTx
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November 05, 2013, 05:29:34 AM
 #7

Hah, this cannot be a serious request.. Wouldn't even be ROI+ with the cheapest GPU enhanced botnet in history at $100k
solareclipse64236
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November 05, 2013, 08:50:23 AM
 #8

In his countless other threads OP indicated it is 10 digits random (A-Z,a-z,0-9).
So 10 digits @ 64 values per digit  64^10 = 83,929,936,5868,340,224 combinations
7970 is ~ 1 billion SHA-256 attempts using hashcat.

83,929,936,5868,340,224 / 1,000,000,000 / 60 / 60 / 24 / 365 = 26 GPU years.  50% chance in half that so 13 GPU years.   Someone with a 13 GPU farm running 24/7/365 for an entire year would have a 50% chance of cracking it.

$1,000 is a joke.



okay you're a joke

clearly someone using just 1 gpu should just give up

why don't you mine bitcoins with just your ass cpu

ampbuster
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November 05, 2013, 09:45:05 AM
 #9

maybe she could have done it without relying on electricity Grin
http://en.wikipedia.org/wiki/Shakuntala_Devi

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November 05, 2013, 08:49:41 PM
 #10

In his countless other threads OP indicated it is 10 digits random (A-Z,a-z,0-9).
So 10 digits @ 64 values per digit  64^10 = 83,929,936,5868,340,224 combinations
7970 is ~ 1 billion SHA-256 attempts using hashcat.

83,929,936,5868,340,224 / 1,000,000,000 / 60 / 60 / 24 / 365 = 26 GPU years.  50% chance in half that so 13 GPU years.   Someone with a 13 GPU farm running 24/7/365 for an entire year would have a 50% chance of cracking it.

$1,000 is a joke.



okay you're a joke

clearly someone using just 1 gpu should just give up

why don't you mine bitcoins with just your ass cpu

Math vs insults I will side with the math.  
Not sure if it was a reading comprehension problem (nothing in there was about CPUs) or delusion.

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November 05, 2013, 09:38:16 PM
 #11

I can try this if you like, send me any unsalted hashes and I'll give it a try.

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November 05, 2013, 09:39:57 PM
 #12

I can try this if you like, send me any unsalted hashes and I'll give it a try.

I think it's really not possible unless you have big CPU power

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November 05, 2013, 09:42:36 PM
 #13

I might try, but you have to give some hint to these 10 digits random characters/digits


 
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November 06, 2013, 01:56:44 AM
 #14

u need to have at least a clue of what the password was... like, number of characters, possible beginning, possible ending, contains letters... without that it's just unfeasable

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November 06, 2013, 02:32:51 AM
 #15

Why don't you post a few below and we can see the hashes.

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November 06, 2013, 02:02:15 PM
 #16

good luck with this one!
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November 08, 2013, 10:14:43 PM
 #17

What could possibly be the purpose of paying somebody $1000 to crack a SHA256 hash other than some misguided criminal enterprise?
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November 08, 2013, 10:35:50 PM
 #18

Maybe if you hacked the worlds biggest supercomputer and used that.

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November 08, 2013, 10:41:52 PM
 #19

In his countless other threads OP indicated it is 10 digits random (A-Z,a-z,0-9).
So 10 digits @ 64 values per digit  64^10 = 83,929,936,5868,340,224 combinations
7970 is ~ 1 billion SHA-256 attempts using hashcat.

83,929,936,5868,340,224 / 1,000,000,000 / 60 / 60 / 24 / 365 = 26 GPU years.  50% chance in half that so 13 GPU years.   Someone with a 13 GPU farm running 24/7/365 for an entire year would have a 50% chance of cracking it.

$1,000 is a joke.



okay you're a joke

clearly someone using just 1 gpu should just give up

why don't you mine bitcoins with just your ass cpu

Was there a reason why you started this topic, other than trolling/insulting others?

Quote
Maybe if you hacked the worlds biggest supercomputer and used that.

There $1000 bounty would cover nowhere near the power needed to run and maintain the computer xD
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November 08, 2013, 11:19:51 PM
 #20

Am I the only one thinking this OP has someone elses wallet and wants the contents??? lol....Sorry OP if thats not the case but if you know what SHA-256 truly is, which most non beginners in the bitcoin world do, you would not even be asking the question. If it was that easy, bitcoin wallet hacking would be a widespread olympic event in the Hacker world.

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