mirror of
https://github.com/ComradCollective/Comrad
synced 2024-11-17 21:25:37 +00:00
483 lines
17 KiB
Python
483 lines
17 KiB
Python
import os,sys; sys.path.append(os.path.abspath(os.path.join(os.path.abspath(os.path.join(os.path.dirname(__file__),'..')),'..')))
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from komrade import *
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from komrade.backend import *
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import art
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import textwrap as tw
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import curses,time,random
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CLI_NCOLS = 50
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CLI_NROWS = 100
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class CLI(Logger):
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ROUTES = {
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'help':'see help messages',
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'register':'register new user',
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'login':'log back in'
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}
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def __init__(self,name='',cmd='',persona=None,stdscr=None):
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self.name=name
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self.cmd=cmd
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self.persona=persona
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self.boot(stdscr=stdscr)
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def boot(self,indent=5,stdscr=None):
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if not stdscr:
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self.stdscr = stdscr = curses.initscr()
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else:
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self.stdscr = stdscr
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# curses.noecho()
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# curses.cbreak()
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# stdscr.keypad(True)
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stdscr.clear()
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stdscr.refresh()
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curses.start_color()
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curses.init_pair(1, curses.COLOR_CYAN, curses.COLOR_BLACK)
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curses.init_pair(2, curses.COLOR_RED, curses.COLOR_BLACK)
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curses.init_pair(3, curses.COLOR_BLACK, curses.COLOR_WHITE)
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self.win = curses.newwin(
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CLI_NROWS,
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CLI_NCOLS,
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)
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def shutdown(self):
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# curses.nocbreak()
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# stdscr.keypad(False)
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# curses.echo()
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exit('Goodbye')
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def scan_print(self,string,start_x=0,start_y=0):
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for li,ln in enumerate(string.split('\n')):
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for xi,x in enumerate(ln):
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pos_x = start_x + xi
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pos_y = start_y + li
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self.stdscr.addstr(pos_y,pos_x,x)
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time.sleep(random.uniform(0,0.01))
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self.stdscr.refresh()
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def run(self,inp='',name=''):
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self.name=name
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clear_screen()
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# self.boot()
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self.logo()
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# self.help()
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inp = chr(self.stdscr.getch())
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if inp: self.route(inp)
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while True:
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i = random.randint(0,CLI_NCOLS)
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j = random.randint(0,CLI_NCOLS)
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self.stdscr.addstr(i,j,'!')
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try:
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# inp=input(f'@{self.name if self.name else "?"}: ')
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inp = k = chr(self.stdscr.getch())
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except KeyboardInterrupt:
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self.shutdown()
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self.route(inp)
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self.stdscr.refresh()
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#await asyncio.sleep(0.5)
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# @property
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def logo(self):
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import textwrap as tw
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logo=art.text2art(CLI_TITLE,font=CLI_FONT)
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self.scan_print(logo)
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return logo
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def route(self,inp):
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inp=inp.strip()
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if not inp.startswith('/'): return
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cmd=inp.split()[0]
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dat=inp[len(cmd):].strip()
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cmd=cmd[1:]
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if cmd in self.ROUTES and hasattr(self,cmd):
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f=getattr(self,cmd)
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return f(dat)
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def help(self):
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print()
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for cmd,info in self.ROUTES.items():
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print(f' /{cmd}: {info}')
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# print('\n')
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print('\n')
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def intro(self):
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self.status(None,)
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def register(self,dat):
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self.komrade = Komrade(self.name)
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self.persona.register()
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### DIALOGUES
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# hello, op?
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def status_keymaker_part1(self,name):
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self.status(None,{ART_OLDPHONE4+'\n',True},3) #,scan=False,width=None,pause=None,clear=None)
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nm=name if name else '?'
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self.status(
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f'\n\n\n@{nm}: Uh yes hello, Operator? I would like to join Komrade, the socialist network. Could you patch me through?',clear=False)
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while not name:
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name=self.status(('name','@TheTelephone: Of course, Komrade...?\n@')).get('vals').get('name').strip()
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print()
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self.status(
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f'@TheTelephone: Of course, Komrade @{name}. A fine name.',
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'''@TheTelephone: However, I'm just the local operator who lives on your device; my only job is to communicate with the remote operator securely.''',
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'''Komrade @TheOperator lives on the deep web. She's the one you want to speak with.''',
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None,{ART_OLDPHONE4},f'''@{name}: Hm, ok. Well, could you patch me through to the remote operator then?''',
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f'''@{TELEPHONE_NAME}: I could, but it's not safe yet. Your information could be exposed. You need to cut your encryption keys first.''',
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f'@{name}: Fine, but how do I do that?',
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f'@{TELEPHONE_NAME}: Visit the Keymaker.',
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clear=False,pause=True)
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### KEYMAKER
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self.status(None,{tw.indent(ART_KEY,' '*5)+'\n',True},3) #,clear=False,indent=10,pause=False)
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# convo
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self.status(
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f'\n@{name}: Hello, Komrade @Keymaker? I would like help forging a new set of keys.',
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f'@Keymaker: Of course, Komrade @{name}.',
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)
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self.status(
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'I will cut for you two matching keys, part of an "asymmetric" pair.',
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'Please, watch me work.',
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None,{tw.indent(ART_KEY,' '*5)+'\n'},
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'I use a high-level cryptographic function from Themis, a well-respected open-source cryptography library.',
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'I use the iron-clad Elliptic Curve algorthm to generate the asymmetric keypair.',
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'> GenerateKeyPair(KEY_PAIR_TYPE.EC)',
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3
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)
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self.status(
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None,
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{ART_KEY_PAIR,True}
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) #,clear=False,indent=10,pause=False)
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return name
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def status_keymaker_part2(self,name,passphrase,pubkey,privkey,hasher,persona):
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from getpass import getpass
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# gen what we need
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uri_id = pubkey.data_b64
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qr_str = get_qr_str(uri_id)
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qr_path = os.path.join(PATH_QRCODES,name+'.png')
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# what are pub/priv?
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# self.status(
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# None,{ART_KEY_PAIR},
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# 'A matching set of keys have been generated.',
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# None,{ART_KEY_PAIR2A+'\nA matching set of keys have been generated.'+'\n'},
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# 'First, I have made a "public key" which you can share with anyone:',
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# f'(1) {pubkey.data_b64.decode()}',
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# 'This key is a randomly-generated binary string, which acts as your "address" on Komrade.',
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# 'With it, someone can write you an encrypted message which only you can read.'
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# )
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# self.status(
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# None,{ART_KEY_PAIR2A},
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# f'You can share your public key by copy/pasting it to them over a secure channel (e.g. Signal).',
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# 'Or, you can share it as a QR code, especially IRL:',
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# {qr_str+'\n\n',True,5},
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# f'\n\n(If registration is successful, this QR code be saved as an image to your device at: {qr_path}.)'
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# )
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# private keys
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self.status(None,
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{ART_KEY_PAIR2B},
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'Second, I have cut a matching "private key".',
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"It's too dangerous to show in full, so I've redacted most of it:",
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f'(2) {make_key_discreet(privkey.data_b64,0.3)}',
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'With it, you can decrypt any message sent to you via your public key.',
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'You can also encrypt messages ',
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)
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# private keys
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self.status(None,
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{CUBEKEY},
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'You you should never, ever give your private key to anyone.',
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'In fact, this key is so dangerous that we need to lock it away immediately.',
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"We'll even throw away the key we use to lock this private key with!",
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"How? By regenerating it each time from your password.",
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)
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if not passphrase:
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from getpass import getpass
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self.status(
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'And it looks like you haven\'t yet chosen a password.',
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3,"Don't tell it to me! Never tell it to anyone.",
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"Ideally, don't even save it on your computer; just remember it, or write it down on paper.",
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"Instead, whisper it to Komrade @Hasher, who scrambles information '1-way', like a blender.",
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)
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res = self.status(None,
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{indent_str(ART_FROG_BLENDER,10),True},
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"@Keymaker: Go ahead, try it. Type anything to @Hasher.",
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('str_to_hash',f'@{name}: ',input)
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)
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str_to_hash = res.get('vals').get('str_to_hash')
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hashed_str1 = hasher(str_to_hash.encode())
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res = self.status(
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'@Hasher: '+hashed_str1
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)
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res = self.status(
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'@Keymaker: Whatever you typed, there\'s no way to reconstruct it from that garbled mess.',
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'But whatever you typed will always produce the *same* garbled mess.',
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('str_to_hash',f'Try typing the exact same thing over again:\n@{name}: ',input)
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)
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str_to_hash = res.get('vals').get('str_to_hash')
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hashed_str2 = hasher(str_to_hash.encode())
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res = self.status(
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'@Hasher: '+hashed_str2
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)
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if hashed_str1==hashed_str2:
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self.status('See how the hashed values are also exactly the same?')
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else:
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self.status('See how the hashed values have also changed?')
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res = self.status(
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('str_to_hash',f'Now try typing something just a little bit different:\n@{name}: ',input)
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)
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str_to_hash = res.get('vals').get('str_to_hash')
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hashed_str3 = hasher(str_to_hash.encode())
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res = self.status(
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'@Hasher: '+hashed_str3
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)
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if hashed_str2==hashed_str3:
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self.status('See how the hashed values are also the same?')
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else:
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self.status('See how the hashed values have also changed?')
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self.status(
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None,{indent_str(ART_FROG_BLENDER,10)},
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'@Keymaker: Behind the scenes, @Hasher is using the SHA-256 hashing function, which was designed by the NSA.',
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'But @Hasher also adds a secret "salt" to the recipe, as it\'s called.',
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'To whatever you type in, @Hasher adds a secret phrase: another random string of characters which never changes.',
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"By doing so, the hash output is \"salted\": made even more idiosyncratic to outside observers.",
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)
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self.status(
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None,{indent_str(ART_FROG_BLENDER,10)},
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f"I've taken the liberty of generating a random secret for your device, which I show here mostly redacted:",
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make_key_discreet_str(persona.crypt_keys.secret.decode(),0.25),
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'The full version of this secret is silently added to every input you type into @Hasher.',
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"I've saved this secret phrase to a hidden location on your device hardware.",
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)
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self.status(
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None,{indent_str(ART_FROG_BLENDER,10)},
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'However, this means that you will be unable to log in to your account from any other device.',
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'This limitation provides yet another level of hardware protection against network attacks.',
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'However, you can always choose (not recommended) to the secret file with another device by a secure channel.',
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3,f'But, please excuse me Komrade @{name} -- I digress.'
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)
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while not passphrase:
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res = self.status(None,
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{indent_str(ART_FROG_BLENDER,10)},
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"@Keymaker: Please type your chosen password into @Hasher.",
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('str_to_hash',f'\n@{name}: ',getpass),
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pause=False
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)
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str_to_hash = res.get('vals').get('str_to_hash')
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hashed_pass1 = hasher(str_to_hash.encode())
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res = self.status(
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'\n@Hasher: '+hashed_pass1,
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pause=False
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)
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res = self.status(
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'\nNow type in the same password one more time to verify it:',
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('str_to_hash',f'\n@{name}: ',getpass),
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pause=False
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)
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str_to_hash = res.get('vals').get('str_to_hash')
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hashed_pass2 = hasher(str_to_hash.encode())
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res = self.status(
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'\n@Hasher: '+hashed_pass2,
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pause=False
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)
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if hashed_pass1==hashed_pass2:
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self.status('','@Keymaker: Excellent. The passwords clearly matched, because the hashed values matched.',pause=False)
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passphrase = hashed_pass1
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else:
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self.status('@Keymaker: A pity. It looks like the passwords didn\'t match, since the hashed values didn\'t match either. Try again?')
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return passphrase
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def status_keymaker_part3(self,privkey,privkey_decr,privkey_encr,passphrase):
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self.status(
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None,{tw.indent(ART_KEY,' '*5)+'\n',True},
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# None,{ART_+'\n',True},
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'Now that we have a hashed passphrase, we can generate the (2A) encryption key.',
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{ART_KEY_KEY2A,True,0.1},
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'''The key is formed using Themis's high-level symmetric encryption library: SecureCell, using Seal mode.''',
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'This key (2A) then uses the AES-256 encryption algorithm to encrypt the super-sensitive private key (2):'
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)
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s0=str.center('[Encryption Process]',CLI_WIDTH)
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s1=s0 + '\n\n' + self.printt('Now that we have (2A), we can use it to encrypt the super-sensitive private key (2):',ret=True)
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s2a = self.printt(f"(2A) {make_key_discreet_str(passphrase)}",ret=True)
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s2 = self.printt(f"(2) {make_key_discreet(privkey.data_b64)}",ret=True)
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s2b = self.printt(f"(2B) {make_key_discreet(b64encode(privkey_encr))}",ret=True)
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self.status(
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# screen 1
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None,{f'{s1}'},
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False,
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# 2
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None,{f'{s1}\n\n{ART_KEY_PAIR_SPLITTING1}'},
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{s2a,True},
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False,
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# 3
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None,{f'{s1}\n\n{ART_KEY_PAIR_SPLITTING2}\n{s2a}'},
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{'\n'+s2,True},
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False,
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# 4
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None,{f'{s1}\n\n{ART_KEY_PAIR_SPLITTING3}\n{s2a}\n\n{s2}'},
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{'\n'+s2b,True},
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False,
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)
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shdr=str.center('[Decryption Process]',CLI_WIDTH) + '\n\n' + self.printt('Once we have (2B), we don\'t need (2A) or (2) anymore. We can regenerate them!',ret=True)
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from getpass import getpass
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passhash = None
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while passhash!=passphrase:
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res = self.status(
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None,{shdr},False if passhash is None else True,
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("pass",self.printt(f"Let's try. Re-type your password into @Hasher:",ret=True)+f" \n ",getpass)
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)
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passhash = self.persona.crypt_keys.hash(res.get('vals').get('pass').encode())
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if passhash!=passphrase:
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self.status({' Looks like they don\'t match. Try again?'},False)
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self.status(
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{' Excellent. We can now regenerate the decryption key:'},False,
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{s2a,True},False,
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)
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# self.status('great')
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# shdr2=
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self.status(
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# 2
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None,{f'{shdr}\n\n{ART_KEY_PAIR_SPLITTING1}'},
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{s2a,True},
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False,
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# 3
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# None,{f'{s1}\n\n{ART_KEY_PAIR_SPLITTING2}\n{s2a}'},
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# {'\n'+s2,True},
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# False,
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# 4
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None,{f'{s1}\n\n{ART_KEY_PAIR_SPLITTING4}\n{s2a}\n\n\n\n'},
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{'\n'+s2b,True},
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False,
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)
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def main():
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import curses
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curses.wrapper(run_cli)
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def run_cli_curses(stdscr):
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cli = CLI(stdscr=stdscr)
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cli.run('/register','elon') #'/register',name='elon')
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if __name__=='__main__':
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# run_cli()
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# asyncio.run(test_async())
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main()
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"""
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Outtakes
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self.status(None,
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{ART_KEY_PAIR31A},
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{ART_KEY_PAIR3B+'\n',True},
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3,'Allow me to explain.',
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'(2A) is a separate encryption key generated by your password.',
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'(2B) is a version of (2) which has been encrypted by (2A).',
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"Because (2) will be destroyed, to rebuild it requires decrypting (2B) with (2A).",
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)
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self.status(
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None,{ART_KEY_PAIR5+'\n'},
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"However, in a final move, I will now destroy (2A), too.",
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None,{ART_KEY_PAIR4Z1+'\n'},
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'Why? Because now only you can regenerate it by remembering the password which created it.',
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# None,{ART_KEY_PAIR4Z1+'\n'},
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'However, this also means that if you lose or forget your password, you\'re screwed.',
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None,{ART_KEY_PAIR4Z2+'\n'},
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"Because without key (2A),you couldn never unlock (2B).",
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None,{ART_KEY_PAIR4Z3+'\n'},
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"And without (2B) and (2A) together, you could never re-assemble the private key of (2).",
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None,{ART_KEY_PAIR4Z42+'\n'},
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"And without (2), you couldn't read messages sent to your public key.",
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)
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""" |