Solved Possible to crack SHA-256 hash?

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defalt

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Jan 4, 2017
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I'd like to apologize if this is posted in the wrong section or a wrong site.

However, i'd like to know if there is possibility to crack the SHA-256 hash in a site like this: https://primedice.com/play

It's a bitcoin gambling site and they provide a low level API to access their functions on the site. Back in 2014, there was a hacker who breached the security on that site and made a program that cracked the hash, which predicted the randomly generated numbers. He knew which numbers are gonna be generated up front, so he invested large bets (up to 10 BTC) and won every time. At the end, he got away with roughly 2000 BTC. That is ~$2,100,000 today. After the site owners saw that, the security got sealed and it got much harder to do something like that again.

But is it? I tried to make a program in C#, but no luck. I just want to know if it is possible to make a program either in C# or JS, or C++ if possible, which can bypass their hash and predict the numbers?
 

Rake

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Jan 21, 2014
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Yes you can crack SHA-256, if it isn't salted it is trivial. Perhaps their was just a hole in the logic used during encryption/decryption that he was just able to bypass.

Please post in the correct section and please use the correct thread prefix.

Closing this thread because it is not on topic / approaching illegal activity.
 
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