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HSCTF 2021 - Scrambler | Rev
Scrambler Output: QQ.ap(OOOaQa.a($/FF.F/ZOZ..aQaQ/aa(a(ZZaaF.Q^FaZ,S/..(^]aF.FF.pFF-(==SFa/aOo.=/aFM/,.,Z=/aF/aQ/<Q(^-OSZOO=a]Q](Q<].a~/ao/aYZaF=aQa]Q^FOZFsQn/^FOh.aZ.OaaO/(Q.SZ</ QQ,a(OFaFF((QQQaQQ/^/Q.O-F(Z(=gQQ=k,OSF=F.a/]Q=Z(Qa(ao=a:ZQ/QpJ]/QQF.=FZ]QkFS^=Q:QQZQFa=.”OS(=^Q.^Ja/(/Z^]F:]//./.Q=F=Ya/SO/]Oas=apS=(..)(.aF/(oZ(a/~.,,ZZZ/Oq=(.QF”:. O($FZ./(]]FO]FO.Oo”F+QO/FqY/Z-(a.=/F/aa/.=OZOFQ(=Z./pOa((O]..Q/]Q((a(]/aaSZJ.Q(*F]<//Fa/ ]QFQZ(=S.ZQQZOFQa:Q/aQO=(]..a/^(QOQoF////(^kF-a- Source code: # uncompyle6 version 3.7.4 # Python bytecode 3.8 (3413) # Decompiled from: Python 2.7.17 (default, Sep 30 2020, 13:38:04) # [GCC 7.5.0] # Warning: this version of Python has problems handling the Python 3 "byte" type in constants properly. # Embedded file...
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HSCTF 2021 - extended-fibonacci-sequence-2 | Algorithm
extended-fibonacci-sequence-2 Extended Fibonacci Sequence 2 ACTUALLY ACTUALLY ACTUALLY NEW.pdf Solution This challenge is very similar to the previous version of the challenge. There are three differences. The initial Fib numbers have changed. S and F no longer concatenates together but rather they are added together Each question is timed. This...
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HSCTF 2021 - extended-fibonacci-sequence | Algorithm
extended-fibonacci-sequence Extended Fibonacci Sequence New.pdf Solution The program will give us a number and that number represents the number of terms we need to perform the summation for. That number also represents how many Fibonacci numbers we need. The S sequence is recursive and it is concatenating the corresponding Fibonacci...