Question

Programming Exercise 4.6

Use the strategy of the decimal to binary conversion and the bit shift left operation defined in Project 5

bits = input("Enter bit string: ")
bits = bits[1:] + bits[0]
print ("Result:", bits) to code a new encryption algorithm.

The algorithm should

Add 1 to each character’s numeric ASCII value.

Convert it to a bit string.

Shift the bits of this string one place to the left.

A single-space character in the encrypted string separates the resulting bit strings.

An example of the program input and output is shown below:

Enter a message: Hello world!

0010011 1001101 1011011 1011011 1100001 000011 1110001 1100001 1100111 1011011 1001011 000101 

Programming Exercise 4.6 Instructions Use the strategy of the decimal to binary conversion and the bit shift left operation defined in Project 5 to code a new encryption algorithm. The algorithm should to each character's numeric . Add 1 ASCII value. 2. Convert it to a bit string. 3. Shift the bits of this string one place to the left. A single-space character in the encrypted string separates the resulting bit strings An example of the program input and output is shown below: Enter a nessage: Hello world!

Answer 1

CODE IN PYTHON:

#converting int to binary
def binary_string(num):
    bit_strng="{0:b}".format(num);
    return bit_strng

#taking string as input from the user
str=input("Enter a string:")
bit_list=[]
for i in str:
    bits=binary_string(ord(i)+1)
    bits=bits[1:]+bits[0]
    bit_list.append(bits)
output=""
#displaying result
for bit in bit_list:
    output+=bit+" "
print(output)
  

OUTPUT:

null