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115 lines (92 loc) · 2.62 KB
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# GGearing
# Simple encryption script for text
# This was one my first versions of this script
# 09/07/2017
from __future__ import print_function
import math
try:
input = raw_input
except NameError:
pass
key = int(math.pi * 1e14)
text = input("Enter text: ")
values = []
reverse = []
def encryptChar(target):
# encrytion algorithm
target = (((target + 42) * key) - 449)
return target
def decryptChar(target):
target = (((target + 449) / key) - 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"))