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#GGearing

#Simple encryption script for text

#This was one my first versions of this script

#09/07/2017

import math

text=input("Enter text: ")

values= []

reverse= []

def encryptChar(target):

#encrytion algorithm

target=(((target+42)*math.pi)-449)

return target

def decryptChar(target):

target=(((target+449)/math.pi)-42)

return target

def encrypt(input_text):

col_values= []

for i in range (len(input_text)):

current=ord(input_text[i])

current=encryptChar(current)

col_values.append(current)

return col_values

def decrypt(enc_text):

col_values = []

for i in range (len(enc_text)):

current=int(decryptChar(enc_text[i]))

current=chr(current)

col_values.append(current)

return col_values

def readAndDecrypt(filename):

file=open(filename,"r")

data=file.read()

datalistint= []

actualdata= []

datalist=data.split(" ")

datalist.remove('')

for i in range(len(datalist)):

datalistint.append(float(datalist[i]))

for i in range(len(datalist)):

current1=int(decryptChar(datalistint[i]))

current1=chr(current1)

actualdata.append(current1)

file.close()

return actualdata

def readAndEncrypt(filename):

file=open(filename,"r")

data=file.read()

datalist=list(data)

encrypted_list=list()

encrypted_list_str=list()

for i in range(len(datalist)):

current=ord(datalist[i])

current=encryptChar(current)

encrypted_list.append(current)

file.close()

return encrypted_list

def readAndEncryptAndSave(inp_file,out_file):

enc_list=readAndEncrypt(inp_file)

output=open(out_file,"w")

for i in range(len(enc_list)):

output.write(str(enc_list[i])+" ")

output.close()

def readAndDecryptAndSave(inp_file,out_file):

dec_list=readAndDecrypt(inp_file)

output=open(out_file,"w")

for i in range(len(dec_list)):

output.write(str(dec_list[i]))

output.close()

#encryption

for i in range (len(text)):

current=ord(text[i])

current=encryptChar(current)

values.append(current)

#decryption

for i in range (len(text)):

current=int(decryptChar(values[i]))

current=chr(current)

reverse.append(current)

print(reverse)

#saves encrypted in txt file

output=open("encrypted.txt","w")

for i in range(len(values)):

output.write(str(values[i])+" ")

output.close()

#read and decrypts

print(readAndDecrypt("encrypted.txt"))