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https://github.com/autistic-symposium/sec-pentesting-toolkit.git
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25 lines
2.1 KiB
Python
25 lines
2.1 KiB
Python
#!/usr/bin/env python
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__author__ = "bt3gl"
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# given two text, find the difference between them
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# useful for ciphers, for example vinegere, when
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# everything is all together
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def find_word(A, B):
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FOUND = False
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for i in range(min(len(A), len(B))):
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if A[i] != B[i] and not FOUND:
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index = i
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FOUND = True
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return index
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if __name__ == '__main__':
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A = 'THISTIMEWEWILLGIVEYOUMOREPLAINTEXTTOWORKWITHYOUWILLPROBABLYFINDTHATHAVINGEXTRACONTENTTHATISASCIIMAKESTHISONEMORESOLVABLEITWOULDBESOLVABLEWITHOUTTHATBUTWEWILLMAKESURETOGIVELOTSOFTEXTJUSTTOMAKESURETHATWECANHANDLEITIWONDERHOWMUCHWILLBEREQUIREDLETSPUTTHEMAGICPHRASEFORTHENEXTLEVELINTHEMIDDLERIGHTHERENOTHINGTRICKYOKNOWMORETEXTTOMAKESURETHATITISSOLVABLEISHOULDPROBABLYJUSTPUTINSOMENURSERYRHYMEORSOMETHINGMARYHADALITTLELAMBLITTLELAMBLITTLELAMBMARYHADALITTLELAMBWHOSEFLEEZEWASWHITEASSNOWIDONTWANTTOMAKETHISHARDERTHANITNEEDSTOBEIFYOUVESOLVEDALOTOFSIMPLECRYPTOCHALLENGESYOUPROBABLYALREADYHAVETHECODEANDWILLBREEZERIGHTTHROUGHITIFITHELPSMOSTOFTHEPLAINTEXTISSTATICATEACHOFTHELEVELSIMNOTAMASOCHISTTHEFUNNYTHINGISTHATDEPENDINGONWHICHRANDOMKEYYOUGETTHATPOEMMIGHTBEEXACTLYTHERIGHTOFFSETTOSUCCESSFULLYMOUNTANATTACKWELLSEELITTLEBITMORELITTLEBITMORETHERE'
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B = 'THISTIMEWEWILLGIVEYOUMOREPLAINTEXTTOWORKWITHYOUWILLPROBABLYFINDTHATHAVINGEXTRACONTENTTHATISASCIIMAKESTHISONEMORESOLVABLEITWOULDBESOLVABLEWITHOUTTHATBUTWEWILLMAKESURETOGIVELOTSOFTEXTJUSTTOMAKESURETHATWECANHANDLEITIWONDERHOWMUCHWILLBEREQUIREDLETSPUTTHEMAGICPHRASEFORTHENEXTLEVELINTHEMIDDLERIGHTHEREBLAHLAHOKNOWMORETEXTTOMAKESURETHATITISSOLVABLEISHOULDPROBABLYJUSTPUTINSOMENURSERYRHYMEORSOMETHINGMARYHADALITTLELAMBLITTLELAMBLITTLELAMBMARYHADALITTLELAMBWHOSEFLEEZEWASWHITEASSNOWIDONTWANTTOMAKETHISHARDERTHANITNEEDSTOBEIFYOUVESOLVEDALOTOFSIMPLECRYPTOCHALLENGESYOUPROBABLYALREADYHAVETHECODEANDWILLBREEZERIGHTTHROUGHITIFITHELPSMOSTOFTHEPLAINTEXTISSTATICATEACHOFTHELEVELSIMNOTAMASOCHISTTHEFUNNYTHINGISTHATDEPENDINGONWHICHRANDOMKEYYOUGETTHATPOEMMIGHTBEEXACTLYTHERIGHTOFFSETTOSUCCESSFULLYMOUNTANATTACKWELLSEELITTLEBITMORELITTLEBITMORETHERE'
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index = find_word(A, B)
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print A[index: index + 15]
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print B[index: index + 15] |