Rot Cipher Python Zip Function

The Problem of rot cipher python zip function

In this article, we’ll explore how to create a rot cipher python zip function. This problem is also known as the Python zip function. One must shift the character used as input by four points in the sequence to encrypt the data. For instance, the character “A” will become “E.”

Solution

The zip() function is the simplest way to use to tackle this issue. It is an in-built function in python. Below one can see the illustration of the same:

zip(seq1 [, seq2 [...]]) -> [(seq1[0], seq2[0] ...), (...)]

A list of tuples that each contain the i-th member of the sequences of parameters is returned by the zip function. The length of the shortest argument sequence is where the returned list’s length is terminated. The Python dictionary data structure also has the zip() function.

Making a lookup table and utilizing it later to encrypt data are both possible uses for it. Also provided below is the encryption key needed to use the dictionary’s zip function to encrypt data.

from string import ascii_lowercase as alphabet

def cipher(plaintext, shift):
   # Organize the alphabet and the shifted alphabet into a lookup table.
   table = dict(zip(alphabet, alphabet[shift:] + alphabet[0:shift]))
   # Each character should be changed to its shifted equivalent. 
   # N.B. This doesn't handle non-alphabetic characters
   return ''.join(table[c] for c in plaintext.lower())

cipher("ABCD", 7)

Output

The application as mentioned above is well-optimized and straightforward to use. Users can simply apply this function to get the desired result as their output. 

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