Bite-code
60 points Medium

I dunno what bytecode is. Could you tell me what input of 'checkNum' will return true? The flag is just a 32-bit signed integer as a decimal (nothing else.) https://mega.nz/#!qfATFaKR!zaTNExq3Bm1MjJnePjTGQyvnvLX_xZxhbGaMv_ypaxo

Flag
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Discussion

Pro tip: use C for brute forcing.

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https://en.wikipedia.org/wiki/List_of_Java_bytecode_instructions

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this is a useful link https://en.wikipedia.org/wiki/List_of_Java_bytecode_instructions

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Had problems with the program that should have calcualted the flag, then switched from Python to C and everything was ok lmao Feel sorry for those who solve with bruteforcing, I am sure that was not the idea, and understanding how to reverse the equation is fun

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Thank you

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Very cool. Had to spend a lot of time to understand the java code. Gave up and came back at least twice.

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