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263 lines
8.9 KiB
Python
263 lines
8.9 KiB
Python
#pyinstaller -F -i "icon.ico" McEliece_console.py
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import getpass
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import random
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def main():
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safe_start()
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def safe_start():
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try:
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start_menu()
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except:
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print("\nUnknown error (maybe ctrl+c), emergency exit!")
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def start_menu():
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f = True
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print("\nA soldering iron is into a black hole.")
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#thermorectal cryptanalysis
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if myhash(getpass.getpass("Login: ")) != 1314399736851798576:
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f = False
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if myhash(getpass.getpass("Password: ")) != 192441972608755898:
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f = False
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if f:
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print("Authorization successful, wait a bit.")
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menu()
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else:
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print("Permission denied.")
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print("\nPress ENTER to exit.", end = '')
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input()
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def menu():
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import cryptosystem_core as core
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print("\nMcEliece cryptosystem implementation by vovuas2003.\n")
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print("All necessary txt files must be in utf-8 and located in the directory with this exe program.\n")
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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, h = help.\n"
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err = "Error! Check command info and try again!\n"
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ok = "Operation successful.\n"
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inp = [str(i) for i in range(7)] + ['-' + str(i) for i in range(7)] + ['c', 'h'] + ['1337']
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print(info)
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while True:
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s = input("Menu number: ")
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while s not in inp:
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s = input("Wrong menu number, h = help: ")
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if s == 'h':
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print(info)
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elif s == 'c':
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print("Default config is 255 210, current is " + str(core.n) + " " + str(core.k) + ". Change config?")
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if(not get_yes_no()):
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continue
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try:
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print("Config is two numbers n >= k >= 2; (3 * 5 * 17) mod n = 0.")
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core.config(input("Write n and k separated by a space: "))
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print(ok)
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except:
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print(err)
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elif s == '0':
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print("\nGood luck!")
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break
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elif s == '1':
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print("This operation will rewrite pubkey.txt, privkey_s.txt and privkey_p.txt; are you sure?")
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if(not get_yes_no()):
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continue
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try:
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G, S, P = core.generate()
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write_txt("pubkey", G)
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write_txt("privkey_s", S)
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write_txt("privkey_p", P)
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print(ok)
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except:
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print(err)
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elif s == '2':
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print("Write your text into text.txt; pubkey.txt is required, message.txt will be rewritten.")
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if(not get_yes_no()):
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continue
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try:
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G = read_txt("pubkey")
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text = read_txt("text")
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msg = core.encrypt(G, text)
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write_txt("message", msg)
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print(ok)
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except:
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print(err)
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elif s == '3':
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print("You need message.txt, privkey_s.txt and privkey_p.txt; text.txt will be rewritten.")
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if(not get_yes_no()):
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continue
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try:
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S = read_txt("privkey_s")
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P = read_txt("privkey_p")
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msg = read_txt("message")
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text = core.decrypt(S, P, msg)
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write_txt("text", text)
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print(ok)
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except:
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print(err)
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elif s == '4':
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print("You need privkey_s.txt and privkey_p.txt; pubkey.txt will be rewritten.")
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if(not get_yes_no()):
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continue
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try:
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S = read_txt("privkey_s")
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P = read_txt("privkey_p")
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G = core.restore_G(S, P)
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write_txt("pubkey", G)
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print(ok)
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except:
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print(err)
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elif s == '5':
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print("You need pubkey.txt and privkey_p.txt; privkey_s.txt will be rewritten.")
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if(not get_yes_no()):
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continue
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try:
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G = read_txt("pubkey")
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P = read_txt("privkey_p")
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S = core.break_S(G, P)
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write_txt("privkey_s", S)
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print(ok)
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except:
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print(err)
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elif s == '6':
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print("You need pubkey.txt and privkey_s.txt; privkey_p.txt will be rewritten.")
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if(not get_yes_no()):
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continue
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try:
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G = read_txt("pubkey")
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S = read_txt("privkey_s")
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P = core.break_P(G, S)
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write_txt("privkey_p", P)
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print(ok)
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except:
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print(err)
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elif s == '-0':
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print("Create (or make empty) all 5 necessary txt files in right utf-8 encoding.")
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if(not get_yes_no()):
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continue
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try:
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write_txt("pubkey", "")
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write_txt("privkey_s", "")
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write_txt("privkey_p", "")
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write_txt("text", "")
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write_txt("message", "")
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print(ok)
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except:
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print(err)
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elif s == '-1':
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print("Create (or make empty) all 3 keys txt files in right utf-8 encoding.")
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if(not get_yes_no()):
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continue
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try:
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write_txt("pubkey", "")
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write_txt("privkey_s", "")
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write_txt("privkey_p", "")
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print(ok)
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except:
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print(err)
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elif s == '-2':
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print("Create (or make empty) text.txt in right utf-8 encoding.")
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if(not get_yes_no()):
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continue
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try:
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write_txt("text", "")
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print(ok)
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except:
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print(err)
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elif s == '-3':
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print("Create (or make empty) message.txt in right utf-8 encoding.")
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if(not get_yes_no()):
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continue
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try:
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write_txt("message", "")
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print(ok)
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except:
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print(err)
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elif s == '-4':
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print("Create (or make empty) pubkey.txt in right utf-8 encoding.")
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if(not get_yes_no()):
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continue
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try:
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write_txt("pubkey", "")
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print(ok)
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except:
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print(err)
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elif s == '-5':
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print("Create (or make empty) privkey_s.txt in right utf-8 encoding.")
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if(not get_yes_no()):
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continue
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try:
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write_txt("privkey_s", "")
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print(ok)
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except:
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print(err)
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elif s == '-6':
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print("Create (or make empty) privkey_p.txt in right utf-8 encoding.")
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if(not get_yes_no()):
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continue
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try:
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write_txt("privkey_p", "")
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print(ok)
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except:
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print(err)
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elif s == '1337':
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c = input("Move the soldering iron into the black hole number: ")
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try:
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PT(int(c))
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except:
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print("Iron: 'I don't know this hole.'")
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continue
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else:
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print("Impossible behaviour, mistake in source code!\nThe string allowed in the inp array is not bound to the call of any function!")
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break
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def get_yes_no():
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s = input("Confirm (0 = go back, 1 = continue): ")
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while s not in ['0', '1']:
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s = input("Try again, 0 or 1: ")
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return int(s)
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def myhash(s, m = 2**61 - 1, p = 257):
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a = 0
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for i in range(len(s)):
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a = ((a * p) % m + ord(s[i])) % m
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return a
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def PT(m, M = 3):
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if m == 0:
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print("Iron: 'OK, I will choose the number by myself.'")
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while m == 0:
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m = random.randint(-M, M)
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s = "PT!"
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p = " "
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f = False
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if m < 0:
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s, p = p, s
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m *= -1
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f = True
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if m > M:
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print("Iron: 'Are you sure to move me so far?'")
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if(not get_yes_no()):
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return
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print()
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if f:
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print(p * (10 * m + 1))
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print(p + (s * 3 + p + s * 3 + p + s + p) * m)
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print(p + (s + p + s + p * 2 + s + p * 2 + s + p) * m)
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print(p + (s * 3 + p * 2 + s + p * 2 + s + p) * m)
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print(p + (s + p * 4 + s + p * 4) * m)
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print(p + (s + p * 4 + s + p * 2 + s + p) * m)
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if f:
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print(p * (10 * m + 1))
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print()
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def write_txt(name, string):
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with open(name + ".txt", "w", encoding = "utf-8") as f:
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f.write(string)
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def read_txt(name):
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with open(name + ".txt", "r", encoding = "utf-8") as f:
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out = f.read()
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return out
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if __name__ == "__main__":
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main()
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