Hacking Secret Ciphers with Python

(Ann) #1

190 http://inventwithpython.com/hacking


Email questions to the author: [email protected]


When the hacker program has found a likely correct decryption, it will pause and wait for the user
to press ā€œDā€ and then Enter. If the decryption is a false positive, the user can just press Enter and
the program will continue to try other keys.


Run the program again and skip the correct decryption by just pressing Enter. The program
assumes that it was not a correct decryption and continues brute-forcing through the other
possible keys. Eventually the program runs through all the possible keys and then gives up,
telling the user that it was unable to hack the ciphertext:


Trying key #757...
Trying key #758...
Trying key #759...
Trying key #760...
Trying key #761...
Failed to hack encryption.


How the Program Works..........................................................................................................................................


transpositionHacker.py



  1. Transposition Cipher Hacker




  2. http://inventwithpython.com/hacking (BSD Licensed)





  3. import pyperclip, detectEnglish, transpositionDecrypt


The transposition hacker program is under 50 lines of code because much of it exists in other
programs. Several modules are imported on line 4.


Multi-line Strings with Triple Quotes


transpositionHacker.py


  1. def main():


  2. You might want to copy & paste this text from the source code at




  3. http://invpy.com/transpositionHacker.py



  4. myMessage = """Cb b rssti aieih rooaopbrtnsceee er es no npfgcwu plri
    ch nitaalr eiuengiteehb(e1 hilincegeoamn fubehgtarndcstudmd nM eu eacBoltaetee
    oinebcdkyremdteghn.aa2r81a condari fmps" tad l t oisn sit u1rnd stara nvhn fs
    edbh ee,n e necrg6 8nmisv l nc muiftegiitm tutmg cm shSs9fcie ebintcaets h a
    ihda cctrhe ele 1O7 aaoem waoaatdahretnhechaopnooeapece9etfncdbgsoeb uuteitgna.
    rteoh add e,D7c1Etnpneehtn beete" evecoal lsfmcrl iu1cifgo ai. sl1rchdnheev sh
    meBd ies e9t)nh,htcnoecplrrh ,ide hmtlme. pheaLem,toeinfgn t e9yce da' eN eMp a
    ffn Fc1o ge eohg dere.eec s nfap yox hla yon. lnrnsreaBoa t,e eitsw il ulpbdofg
    BRe bwlmprraio po droB wtinue r Pieno nc ayieeto'lulcih sfnc ownaSserbereiaSm



  • eaiah, nnrttgcC maciiritvledastinideI nn rms iehn tsigaBmuoetcetias rn"""

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