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Pwd_Key = 4 #modify to set personalised Key

#Function to Encode the user given data

def Cipher(Text) :

Cipher_Text = ''

for i in Text:

a = chr(ord(i) + Pwd_Key )

Cipher_Text += a

T = Cipher_Text + '\n'

return T

#Function to store the encrypted data.

def Entry(Data):

file = open('Data.txt', 'a')

file.write(Data)

print('\nEntered data has been successfully encrypted and recorded..!!!\n')

file.close()

'''

print(En_Data)

'''

#Function to display the encrypted data.

def Extract():

En_Records,De_Records = [],[]

file = open('Data.txt', 'r')

x = file.readlines()

for i in x:

En_Records.append(i)

for i in range(0,len(En_Records)):

En_Text = En_Records[i]

De_Text = ""

for j in range(0, len(En_Text)):

De_Text += (chr(ord(En_Text[j]) - Pwd_Key))

De_Records.append(De_Text)

file.close()

return De_Records

while(True):

print(" 1 -> Enter Data ")

print(" 2 -> Display Stored Data ")

print(" 0 -> Exit \n")

opt = int(input("Enter the option : "))

print("\n")

if opt == 1 :

Data = input("Enter your data :\n")

En_Data = Cipher(Data)

Entry(En_Data)

elif opt == 2 :

user_key = int(input("Enter the Key to decrypt : "))

if user_key == Pwd_Key :

L = Extract()

for i in range(0,len(L)):

print(L[i][:-1])

print("\n")

else :

print("Wrong key !! ")

elif opt == 0 :

exit()

else :

print("Enter valid option !!")