ContributorHey guys,
Crack the password and WIN WIN WIN!!!!
Good luck! 
Cyber Challenge
Started By
IamLupo
, Jan 24 2014 06:07 PM
30 replies to this topic
#3
Posted 24 January 2014 - 06:15 PM
I see it , challenging !!!! 
And nice challenge !
- IamLupo likes this
Meet me here: http://www.voa.mod.gov.rs/en/
#5
Posted 25 January 2014 - 06:33 AM
karcrack, on 25 Jan 2014 - 03:32 AM, said:
Why do you hate << and >> ? xD
I'll be giving a try tomorrow
ow yeah thx, thats true XD rofl, haven't thought about that XD
Good luck !
- Hess likes this
#6
Posted 26 January 2014 - 07:47 PM
Hess told me that the exe could ask for a dll. If it is missing, recompile the main.cpp with compile.bat
- Hess likes this
#7
Posted 26 January 2014 - 07:51 PM
Correct , other members , confirm it , if You try it.
Meet me here: http://www.voa.mod.gov.rs/en/
#8
Posted 26 January 2014 - 08:16 PM
here you can download the exe without needing the dll:
challange/crypt.exe- Hess likes this
#9
karcrack
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Posted 28 January 2014 - 07:21 AM
I haven't had too much time yet and my cryptanalyst knowledge is still work in progress xD
My next step is to reverse GenerateKey... Hopefully after that I can have a proper model. I think I will be able to know the password size since it's used during the initialization if it's not fully scrambled after 3 GenerateKey.
Maybe I didn't find the obvious crypto-fail and a hint would be helpful
- Hess and IamLupo like this
#10
Posted 28 January 2014 - 10:19 AM
hehe, reversing the GenerateKey is a good start! Also focus yourself on the output file, what do you know about that?
And a hint, GenerateKey has 2 vulnerabilities 
good luck!
- karcrack and Hess like this
#11
karcrack
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Posted 28 January 2014 - 11:33 AM
IamLupo, on 28 Jan 2014 - 09:19 AM, said:
And a hint, GenerateKey has 2 vulnerabilities
That's a good hint Once I finish my exams I'll give it another try ^^ Fun challenge, thanks
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#12
Posted 28 January 2014 - 11:53 AM
Small weakness on sight !!!! CompreXX Studio software decodes *.zip , but it still asks for password. I have noticed it when I DL it , but , I didn't tested it. So , I get decoded archive which just asks for PW.
Meet me here: http://www.voa.mod.gov.rs/en/
#14
Posted 30 January 2014 - 01:21 PM
i decide to publish the answers of this challange in 8 days.
- karcrack and Hess like this
#16
Posted 31 January 2014 - 09:40 AM
karcrack, on 30 Jan 2014 - 7:30 PM, said:
Don't rush me
Joking, I'll solve it within 8 days. Or die trying!
Tick tock, karcrack...
- karcrack, Hess and IamLupo like this
#17
Posted 31 January 2014 - 11:42 AM
I can solve it with few clicks of RSAAT , but.... Then , it ain't no challenge. :S
Meet me here: http://www.voa.mod.gov.rs/en/
#18
Posted 01 February 2014 - 07:23 AM
Hess, on 31 Jan 2014 - 10:42 AM, said:
I can solve it with few clicks of RSAAT , but.... Then , it ain't no challenge. :S
It is all about to get the password. How you do it, it is your decision Even let someone else do it for you XD
- Hess likes this
#19
Posted 02 February 2014 - 01:36 PM
I have seen Lupo doing this dutch cyber challenge from aivd.. It was pretty easy for him, at least.. Took maybe a few days. And he made this compiled crypt.exe C++ bin in C++ from scratch. I think this twist he gave to it makes it even harder? Did not try it myself. My C knowledge is too bad for it..
- Hess likes this
#20
Posted 02 February 2014 - 01:48 PM
Take that dutch one and post here if possible.
Meet me here: http://www.voa.mod.gov.rs/en/
