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https://github.com/TheAlgorithms/Python.git
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55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
from __future__ import print_function
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def decrypt(message):
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"""
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>>> decrypt('TMDETUX PMDVU')
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Decryption using Key #0: TMDETUX PMDVU
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Decryption using Key #1: SLCDSTW OLCUT
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Decryption using Key #2: RKBCRSV NKBTS
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Decryption using Key #3: QJABQRU MJASR
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Decryption using Key #4: PIZAPQT LIZRQ
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Decryption using Key #5: OHYZOPS KHYQP
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Decryption using Key #6: NGXYNOR JGXPO
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Decryption using Key #7: MFWXMNQ IFWON
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Decryption using Key #8: LEVWLMP HEVNM
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Decryption using Key #9: KDUVKLO GDUML
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Decryption using Key #10: JCTUJKN FCTLK
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Decryption using Key #11: IBSTIJM EBSKJ
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Decryption using Key #12: HARSHIL DARJI
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Decryption using Key #13: GZQRGHK CZQIH
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Decryption using Key #14: FYPQFGJ BYPHG
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Decryption using Key #15: EXOPEFI AXOGF
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Decryption using Key #16: DWNODEH ZWNFE
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Decryption using Key #17: CVMNCDG YVMED
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Decryption using Key #18: BULMBCF XULDC
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Decryption using Key #19: ATKLABE WTKCB
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Decryption using Key #20: ZSJKZAD VSJBA
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Decryption using Key #21: YRIJYZC URIAZ
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Decryption using Key #22: XQHIXYB TQHZY
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Decryption using Key #23: WPGHWXA SPGYX
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Decryption using Key #24: VOFGVWZ ROFXW
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Decryption using Key #25: UNEFUVY QNEWV
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"""
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LETTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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for key in range(len(LETTERS)):
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translated = ""
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for symbol in message:
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if symbol in LETTERS:
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num = LETTERS.find(symbol)
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num = num - key
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if num < 0:
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num = num + len(LETTERS)
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translated = translated + LETTERS[num]
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else:
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translated = translated + symbol
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print("Decryption using Key #%s: %s" % (key, translated))
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def main():
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message = raw_input("Encrypted message: ")
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message = message.upper()
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decrypt(message)
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if __name__ == '__main__':
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import doctest
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doctest.testmod()
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main()
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