115 lines
4.4 KiB
Python
Executable file
115 lines
4.4 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# mmgen = Multi-Mode GENerator, command-line Bitcoin cold storage solution
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# Copyright (C) 2013-2014 by philemon <mmgen-py@yandex.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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mmgen-walletchk: Check integrity of a mmgen deterministic wallet, display
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information about it and export seed and mnemonic data
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"""
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import sys
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import mmgen.config as g
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from mmgen.Opts import *
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from mmgen.util import *
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help_data = {
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'prog_name': g.prog_name,
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'desc': """Check integrity of an {} deterministic wallet, display
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its information, and export seed and mnemonic data.
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""".format(g.proj_name),
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'usage': "[opts] [filename]",
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'options': """
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-h, --help Print this help message
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-d, --outdir= d Specify an alternate directory 'd' for output
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-e, --echo-passphrase Print passphrase to screen when typing it
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-P, --passwd-file= f Get passphrase from file 'f'
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-q, --quiet Suppress warnings; overwrite files without prompting
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-r, --usr-randchars= n Get 'n' characters of additional randomness from
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user (min={g.min_urandchars}, max={g.max_urandchars})
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-S, --stdout Print seed or mnemonic data to standard output
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-v, --verbose Produce more verbose output
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-g, --export-incog Export wallet to incognito format
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-X, --export-incog-hex Export wallet to incognito hexadecimal format
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-G, --export-incog-hidden=f,o Hide incognito data in existing file 'f'
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at offset 'o' (comma-separated)
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-m, --export-mnemonic Export the wallet's mnemonic to file
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-s, --export-seed Export the wallet's seed to file
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""".format(g=g),
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'notes': """
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Since good randomness is particularly important for incognito wallets,
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the '--usr-randchars' option is turned on by default to gather additional
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entropy from the user when one of the '--export-incog*' options is
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selected. If you fully trust your OS's random number generator and wish
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to disable this option, then specify '-r0' on the command line.
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"""
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}
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opts,cmd_args = parse_opts(sys.argv,help_data)
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if 'quiet' in opts: g.quiet = True
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if 'verbose' in opts: g.verbose = True
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if 'export_incog_hidden' in opts or 'export_incog_hex' in opts:
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opts['export_incog'] = True
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if len(cmd_args) != 1: usage(help_data)
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check_infile(cmd_args[0])
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if 'export_mnemonic' in opts:
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qmsg("Exporting mnemonic data to file by user request")
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elif 'export_seed' in opts:
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qmsg("Exporting seed data to file by user request")
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elif 'export_incog' in opts:
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if opts['usr_randchars'] == -1: opts['usr_randchars'] = g.usr_randchars_dfl
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qmsg("Exporting wallet to incognito format by user request")
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incog_enc,seed_id,key_id,iv_id,preset = \
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wallet_to_incog_data(cmd_args[0],opts)
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if "export_incog_hidden" in opts:
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export_to_hidden_incog(incog_enc,opts)
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else:
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seed_len = (len(incog_enc)-g.salt_len-g.aesctr_iv_len)*8
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fn = "%s-%s-%s[%s,%s].%s" % (
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seed_id, key_id, iv_id, seed_len, preset,
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g.incog_hex_ext if "export_incog_hex" in opts else g.incog_ext
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)
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data = pretty_hexdump(incog_enc,2,8,line_nums=False) \
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if "export_incog_hex" in opts else incog_enc
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export_to_file(fn, data, opts, "incognito wallet data")
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sys.exit()
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seed = get_seed_from_wallet(cmd_args[0], opts)
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if seed: qmsg("Wallet is OK")
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else:
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msg("Error opening wallet")
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sys.exit(2)
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if 'export_mnemonic' in opts:
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wl = get_default_wordlist()
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from mmgen.mnemonic import get_mnemonic_from_seed
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p = True if g.debug else False
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mn = get_mnemonic_from_seed(seed, wl, g.default_wl, print_info=p)
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fn = "%s.%s" % (make_chksum_8(seed).upper(), g.mn_ext)
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export_to_file(fn, " ".join(mn)+"\n", opts, "mnemonic data")
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elif 'export_seed' in opts:
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from mmgen.bitcoin import b58encode_pad
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data = col4(b58encode_pad(seed))
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chk = make_chksum_6(b58encode_pad(seed))
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fn = "%s.%s" % (make_chksum_8(seed).upper(), g.seed_ext)
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export_to_file(fn, "%s %s\n" % (chk,data), opts, "seed data")
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