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Python

#pyinstaller -F -i "icon.ico" McEliece_console.py
import hashlib
import getpass
import random
import base64
def main():
safe_start()
def safe_start():
try:
start_menu()
except:
print("\nUnknown error (maybe ctrl+c), emergency exit!")
def start_menu():
f = True
print("\nA soldering iron is into a black hole.")
#thermorectal cryptanalysis
if myhash(getpass.getpass("Login: ")) != 1314399736851798576:
f = False
if myhash(getpass.getpass("Password: ")) != 192441972608755898:
f = False
if f:
print("Authorization successful, wait a bit.")
menu()
else:
print("Permission denied.")
print("\nPress ENTER to exit.", end = '')
input()
def menu():
import cryptosystem_core as core
print("\nMcEliece cryptosystem implementation by vovuas2003.\n")
print("All necessary txt files must be in utf-8 and located in the directory with this exe program.\n")
info = "Menu numbers: 0 = exit; 1 = generate keys, 2 = encrypt, 3 = decrypt,\n4 = restore pubkey, 5 = break privkey_s, 6 = break privkey_p;\n-0 = init all txt files, -1 = init keys, -2 = init text, -3 = init message,\n-4 = init pubkey, -5 = init privkey_s, -6 = init privkey_p;\nc = config, b = binary menu, u = unsafe keygen by password, h = help.\n"
err = "Error! Check command info and try again!\n"
ok = "Operation successful.\n"
inp = [str(i) for i in range(7)] + ['-' + str(i) for i in range(7)] + ['c', 'b', 'h', 'u'] + ['1337', '-1337']
print(info)
while True:
s = input("Menu number: ")
while s not in inp:
s = input("Wrong menu number, h = help: ")
if s == 'h':
print(info)
elif s == 'b':
print("Go to binary files encryption menu? Don't forget to generate keys and change config before that (if you want)!")
if(not get_yes_no()):
continue
try:
if(bin_menu(core)):
break
except:
raise Exception()
elif s == 'c':
print("Default config is 255 210, current is " + str(core.n) + " " + str(core.k) + ". Change config?")
if(not get_yes_no()):
continue
try:
print("Config is two numbers n >= k >= 2; (3 * 5 * 17) mod n = 0. Larger values = larger keys.\nRandomly change (n - k) div 2 bytes during encryption, but add (n - k + 1) bytes to each chunk with len (k - 1).")
core.config(input("Write n and k separated by a space: "))
print(ok)
except:
print(err)
elif s == '0':
print("\nGood luck!")
break
elif s == 'u':
print("WARNING: setting sha256hash(password) mod 2^32 as random seed is VERY unsafe practice!\nIt is better to use menu number 1 for independent random.")
print("This operation will rewrite pubkey.txt, privkey_s.txt and privkey_p.txt; are you sure?")
if(not get_yes_no()):
continue
try:
seed = normalhash(getpass.getpass("Any password for hashing: "))
G, S, P = core.unsafe_generate(seed)
write_txt("pubkey", G)
write_txt("privkey_s", S)
write_txt("privkey_p", P)
print(ok)
except:
print(err)
elif s == '1':
print("This operation will rewrite pubkey.txt, privkey_s.txt and privkey_p.txt; are you sure?")
if(not get_yes_no()):
continue
try:
G, S, P = core.generate()
write_txt("pubkey", G)
write_txt("privkey_s", S)
write_txt("privkey_p", P)
print(ok)
except:
print(err)
elif s == '2':
print("Write your text into text.txt; pubkey.txt is required, message.txt will be rewritten.")
if(not get_yes_no()):
continue
try:
G = read_txt("pubkey")
text = read_txt("text")
msg = core.encrypt(G, text)
write_txt("message", msg)
print(ok)
except:
print(err)
elif s == '3':
print("You need message.txt, privkey_s.txt and privkey_p.txt; text.txt will be rewritten.")
if(not get_yes_no()):
continue
try:
S = read_txt("privkey_s")
P = read_txt("privkey_p")
msg = read_txt("message")
text = core.decrypt(S, P, msg)
write_txt("text", text)
print(ok)
except:
print(err)
elif s == '4':
print("You need privkey_s.txt and privkey_p.txt; pubkey.txt will be rewritten.")
if(not get_yes_no()):
continue
try:
S = read_txt("privkey_s")
P = read_txt("privkey_p")
G = core.restore_G(S, P)
write_txt("pubkey", G)
print(ok)
except:
print(err)
elif s == '5':
print("You need pubkey.txt and privkey_p.txt; privkey_s.txt will be rewritten.")
if(not get_yes_no()):
continue
try:
G = read_txt("pubkey")
P = read_txt("privkey_p")
S = core.break_S(G, P)
write_txt("privkey_s", S)
print(ok)
except:
print(err)
elif s == '6':
print("You need pubkey.txt and privkey_s.txt; privkey_p.txt will be rewritten.")
if(not get_yes_no()):
continue
try:
G = read_txt("pubkey")
S = read_txt("privkey_s")
P = core.break_P(G, S)
write_txt("privkey_p", P)
print(ok)
except:
print(err)
elif s == '-0':
print("Create (or make empty) all 5 necessary txt files in right utf-8 encoding.")
if(not get_yes_no()):
continue
try:
write_txt("pubkey", "")
write_txt("privkey_s", "")
write_txt("privkey_p", "")
write_txt("text", "")
write_txt("message", "")
print(ok)
except:
print(err)
elif s == '-1':
print("Create (or make empty) all 3 keys txt files in right utf-8 encoding.")
if(not get_yes_no()):
continue
try:
write_txt("pubkey", "")
write_txt("privkey_s", "")
write_txt("privkey_p", "")
print(ok)
except:
print(err)
elif s == '-2':
print("Create (or make empty) text.txt in right utf-8 encoding.")
if(not get_yes_no()):
continue
try:
write_txt("text", "")
print(ok)
except:
print(err)
elif s == '-3':
print("Create (or make empty) message.txt in right utf-8 encoding.")
if(not get_yes_no()):
continue
try:
write_txt("message", "")
print(ok)
except:
print(err)
elif s == '-4':
print("Create (or make empty) pubkey.txt in right utf-8 encoding.")
if(not get_yes_no()):
continue
try:
write_txt("pubkey", "")
print(ok)
except:
print(err)
elif s == '-5':
print("Create (or make empty) privkey_s.txt in right utf-8 encoding.")
if(not get_yes_no()):
continue
try:
write_txt("privkey_s", "")
print(ok)
except:
print(err)
elif s == '-6':
print("Create (or make empty) privkey_p.txt in right utf-8 encoding.")
if(not get_yes_no()):
continue
try:
write_txt("privkey_p", "")
print(ok)
except:
print(err)
elif s == '1337':
c = input("Move the soldering iron into the black hole number: ")
try:
PT(int(c))
except:
print("Iron: 'I don't know this hole.'")
continue
elif s == '-1337':
print("Do you want to format your system disk?")
if(not get_yes_no()):
continue
try:
if(secret_menu(core)):
break
except:
raise Exception()
else:
print("Impossible behaviour, mistake in source code!\nThe string allowed in the inp array is not bound to the call of any function!")
break
def bin_menu(core):
print("\nFirst line in binary.txt is a name of the original file (with extension), you can edit it.")
print("Default config is 255 210, current is " + str(core.n) + " " + str(core.k) + ".")
info = "Binary menu numbers: 0 = go back to common menu; 1 = encrypt, 2 = decrypt;\n-0 = init binary.txt; -1 = to base64, -2 = from base64; h = help.\n"
err = "Error! Check command info and try again!\n"
ok = "Operation successful.\n"
inp = [str(i) for i in range(3)] + ['-' + str(i) for i in range(3)] + ['h']
print(info)
while True:
s = input("Binary menu number: ")
while s not in inp:
s = input("Wrong menu number, h = help: ")
if s == 'h':
print(info)
elif s == '0':
print("Going back to common menu.\n")
break
elif s == '1':
print("You need pubkey.txt and any file that you want to encrypt; binary.txt will be rewritten.")
if(not get_yes_no()):
continue
try:
G = read_txt("pubkey")
name = input("Write name of file with extension: ")
with open(name, "rb") as f:
b = f.read()
out = core.bin_encrypt(G, b)
write_txt("binary", name + '\n' + out)
print(ok)
except:
print(err)
elif s == '2':
print("You need privkey_s.txt, privkey_p.txt and binary.txt; name of new file is the first string in binary.txt.")
if(not get_yes_no()):
continue
try:
S = read_txt("privkey_s")
P = read_txt("privkey_p")
name, msg = read_txt("binary").split('\n')
text = core.bin_decrypt(S, P, msg)
with open(name, "wb") as f:
f.write(text)
print(ok)
except:
print(err)
elif s == '-0':
print("Create (or make empty) binary.txt in right utf-8 encoding.")
if(not get_yes_no()):
continue
try:
write_txt("binary", "")
print(ok)
except:
print(err)
elif s == '-1':
print("Convert any file to base64 string without any encryption; binary.txt will be rewritten.")
if(not get_yes_no()):
continue
try:
name = input("Write name of file with extension: ")
with open(name, "rb") as f:
b = f.read()
out = base64.b64encode(b).decode()
write_txt("binary", name + '\n' + out)
print(ok)
except:
print(err)
elif s == '-2':
print("Convert binary.txt from base64; name of new file is the first string in binary.txt.")
if(not get_yes_no()):
continue
try:
name, msg = read_txt("binary").split('\n')
text = base64.b64decode(msg)
with open(name, "wb") as f:
f.write(text)
print(ok)
except:
print(err)
else:
print("Impossible behaviour, mistake in source code!\nThe string allowed in the inp array is not bound to the call of any function!")
return 1
return 0
def secret_menu(core):
#1qaz@WSX
if myhash(getpass.getpass("canp: ")) == 1355332552418299328:
print("Authorization successful.")
else:
print("Permission denied.")
return 0
print("\nHidden input from keyboard, writing to secret_message.txt.")
print("Default config is 255 210, current is " + str(core.n) + " " + str(core.k) + ".")
info = "Secret menu numbers: 0 = go back; 1 = encrypt, 2 = decrypt; -0 = init txt; h = help.\n"
err = "Error! Check command info and try again!\n"
ok = "Operation successful.\n"
inp = [str(i) for i in range(3)] + ['-0'] + ['h']
print(info)
while True:
s = input("Secret menu number: ")
while s not in inp:
s = input("Wrong menu number, h = help: ")
if s == 'h':
print(info)
elif s == '0':
print("Going back to common menu.\n")
break
elif s == '1':
print("You need pubkey.txt; secret_message.txt will be rewritten.")
if(not get_yes_no()):
continue
try:
G = read_txt("pubkey")
text = getpass.getpass("Secret text: ")
msg = core.encrypt(G, text)
write_txt("secret_message", msg)
print(ok)
except:
print(err)
elif s == '2':
print("You need privkey_s.txt, privkey_p.txt and secret_message.txt.")
if(not get_yes_no()):
continue
try:
S = read_txt("privkey_s")
P = read_txt("privkey_p")
msg = read_txt("secret_message")
text = core.decrypt(S, P, msg)
print('\nSecret text: ' + text + '\n')
print(ok)
except:
print(err)
elif s == '-0':
print("Create (or make empty) secret_message.txt in right utf-8 encoding.")
if(not get_yes_no()):
continue
try:
write_txt("secret_message", "")
print(ok)
except:
print(err)
else:
print("Impossible behaviour, mistake in source code!\nThe string allowed in the inp array is not bound to the call of any function!")
return 1
return 0
def get_yes_no():
s = input("Confirm (0 = go back, 1 = continue): ")
while s not in ['0', '1']:
s = input("Try again, 0 or 1: ")
return int(s)
def myhash(s, m = 2**61 - 1, p = 257):
a = 0
for i in range(len(s)):
a = ((a * p) % m + ord(s[i])) % m
return a
def normalhash(s):
return int(hashlib.sha256(bytearray(s, 'utf-8')).hexdigest(), 16)
def PT(m, M = 3):
if m == 0:
print("Iron: 'OK, I will choose the number by myself.'")
while m == 0:
m = random.randint(-M, M)
s = "PT!"
p = " "
f = False
if m < 0:
s, p = p, s
m *= -1
f = True
if m > M:
print("Iron: 'Are you sure to move me so far?'")
if(not get_yes_no()):
return
print()
if f:
print(p * (10 * m + 1))
print(p + (s * 3 + p + s * 3 + p + s + p) * m)
print(p + (s + p + s + p * 2 + s + p * 2 + s + p) * m)
print(p + (s * 3 + p * 2 + s + p * 2 + s + p) * m)
print(p + (s + p * 4 + s + p * 4) * m)
print(p + (s + p * 4 + s + p * 2 + s + p) * m)
if f:
print(p * (10 * m + 1))
print()
def write_txt(name, string):
with open(name + ".txt", "w", encoding = "utf-8") as f:
f.write(string)
def read_txt(name):
with open(name + ".txt", "r", encoding = "utf-8") as f:
out = f.read()
return out
if __name__ == "__main__":
main()