497 lines
22 KiB
Python
497 lines
22 KiB
Python
#!/usr/bin/env python3
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# link: https://git.p2p.legal/aya/dpgpid/
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# desc: dpgpid builds a decentralized gpg world of trust with did over ipfs
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# Copyleft 2022 Yann Autissier <aya@asycn.io>
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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 Affero 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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# 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 Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from cryptography.hazmat.primitives import serialization
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from jwcrypto.jwk import JWK
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import base36
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import base58
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import base64
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import duniterpy.key
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import gpg
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import logging as log
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import pgpy
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import pynentry
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import re
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import warnings
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def from_args(args, config):
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log.debug("key.from_args(%s, %s)" % (args, config))
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from key import ed25519
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if args.gpg:
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return from_gpg()
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else:
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scrypt_params = duniterpy.key.scrypt_params.ScryptParams(
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int(config.get('scrypt', 'n')) if config and config.has_option('scrypt', 'n') else 4096,
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int(config.get('scrypt', 'r')) if config and config.has_option('scrypt', 'r') else 16,
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int(config.get('scrypt', 'p')) if config and config.has_option('scrypt', 'p') else 1,
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int(config.get('scrypt', 'sl')) if config and config.has_option('scrypt', 'sl') else 32,
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)
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if args.input:
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return from_file(args.input, args.password, scrypt_params)
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else:
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if args.mnemonic:
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return from_mnemonic(' '.join(args.username), scrypt_params)
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else:
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return from_credentials(args.username[0], args.password, scrypt_params)
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def from_credentials(username, password=None, scrypt_params=None):
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log.debug("key.from_credentials(%s, %s, %s)" % (username, password, scrypt_params))
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try:
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if not password:
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with pynentry.PynEntry() as p:
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p.description = f"""Please enter the passord for username "{username}"."""
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p.prompt = 'Passsord:'
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try:
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password = p.get_pin()
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except pynentry.PinEntryCancelled:
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log.warning('Cancelled! Goodbye.')
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exit(1)
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return from_duniterpy(duniterpy.key.SigningKey.from_credentials(
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username,
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password,
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scrypt_params
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))
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except Exception as e:
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log.error(f'Unable to get key from credentials: {e}')
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exit(2)
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def from_duniterpy(duniterpy):
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log.debug("key.from_duniterpy(%s)" % duniterpy)
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return ed25519.from_duniterpy(duniterpy)
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def from_file(input_file, password=None, scrypt_params=None):
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log.debug("key.from_file()")
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try:
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with open(input_file, 'r') as file:
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lines = file.readlines()
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if len(lines) > 0:
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line = lines[0].strip()
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regex_ewif = re.compile('^Type: EWIF$')
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regex_jwk = re.compile('^\\s*{\\s*"crv":\\s*"Ed25519",\\s*"d":\\s*"(.)+",\\s*"kty":\\s*"OKP",\\s*"x":\\s*"(.)+"\\s*}')
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regex_nacl = re.compile('^\\s*{\\s*"priv":\\s*"[0-9a-fA-F]+",\\s*"verify":\\s*"[0-9a-fA-F]+",\\s*"sign":\\s*"[0-9a-fA-F]+"\\s*}')
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regex_pem = re.compile('^-----BEGIN PRIVATE KEY-----$')
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regex_pubsec = re.compile('^Type: PubSec$')
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regex_seed = re.compile('^[0-9a-fA-F]{64}$')
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regex_ssb = re.compile('\\s*{\\s*"curve":\\s*"ed25519",\\s*"public":\\s*"(.+)\\.ed25519",\\s*"private":\\s*"(.+)\\.ed25519",\\s*"id":\\s*"@(.+).ed25519"\\s*}')
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regex_wif = re.compile('^Type: WIF$')
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if re.search(regex_ewif, line):
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log.info("input file format detected: ewif")
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if not password:
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with pynentry.PynEntry() as p:
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p.description = f"""Data in EWIF file is encrypted.
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Please enter a password to decrypt seed.
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"""
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p.prompt = 'Passphrase:'
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try:
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password = p.get_pin()
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except pynentry.PinEntryCancelled:
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log.warning('Cancelled! Goodbye.')
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exit(1)
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return from_duniterpy(duniterpy.key.SigningKey.from_ewif_file(input_file, password))
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elif re.search(regex_jwk, line):
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log.info("input file format detected: jwk")
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return from_jwk(JWK.from_json(line))
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elif re.search(regex_nacl, line):
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log.info("input file format detected: nacl")
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return from_duniterpy(duniterpy.key.SigningKey.from_private_key(input_file))
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elif re.search(regex_pem, line):
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log.info("input file format detected: pem")
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return from_pem(''.join(lines).encode())
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elif re.search(regex_pubsec, line):
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log.info("input file format detected: pubsec")
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return from_duniterpy(duniterpy.key.SigningKey.from_pubsec_file(input_file))
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elif re.search(regex_seed, line):
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log.info("input file format detected: seed")
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return from_duniterpy(duniterpy.key.SigningKey.from_seedhex_file(input_file))
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elif re.search(regex_ssb, line):
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log.info("input file format detected: ssb")
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return from_duniterpy(duniterpy.key.SigningKey.from_ssb_file(input_file))
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elif re.search(regex_wif, line):
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log.info("input file format detected: wif")
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return from_duniterpy(duniterpy.key.SigningKey.from_wif_file(input_file))
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elif len(line.split(' ')) == 12:
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log.info("input file format detected: mnemonic")
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return from_mnemonic(line, scrypt_params)
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elif len(lines) > 1:
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log.info("input file format detected: credentials")
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return from_credentials(line, lines[1].strip(), scrypt_params)
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else:
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raise NotImplementedError('unknown input file format.')
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else:
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raise NotImplementedError('empty file.')
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except UnicodeDecodeError as e:
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try:
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with open(input_file, 'rb') as file:
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lines = file.readlines()
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if len(lines) > 0:
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line = lines[0].strip()
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regex_dewif = re.compile(b'^\x00\x00\x00\x01\x00\x00\x00\x01')
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regex_p2p = re.compile(b'^\x08\x01\x12@')
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if re.search(regex_dewif, line):
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log.info("input file format detected: dewif")
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if not password:
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with pynentry.PynEntry() as p:
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p.description = f"""Data in DEWIF file is encrypted.
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Please enter a password to decrypt seed.
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"""
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p.prompt = 'Passphrase:'
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try:
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password = p.get_pin()
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except pynentry.PinEntryCancelled:
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log.warning('Cancelled! Goodbye.')
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exit(1)
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return from_duniterpy(duniterpy.key.SigningKey.from_dewif_file(input_file, password))
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if re.search(regex_p2p, line):
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log.info("input file format detected: p2p")
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return from_libp2p(line)
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else:
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raise NotImplementedError('unknown input file format.')
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else:
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raise NotImplementedError('empty file.')
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except Exception as e:
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log.error(f'Unable to get key from file {input_file}: {e}')
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exit(2)
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except Exception as e:
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log.error(f'Unable to get key from file {input_file}: {e}')
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exit(2)
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def from_gpg():
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log.debug("key.from_gpg()")
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try:
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self.pgpy()
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return self.from_pgpy()
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except Exception as e:
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log.error(f'Unable to get key from gpg: {e}')
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exit(2)
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def from_jwk(jwk):
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log.debug("key.from_jwk(%s)" % jwk)
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return ed25519.from_jwk(jwk)
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def from_libp2p(libp2p):
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log.debug("key.from_libp2p(%s)" % libp2p)
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return ed25519.from_libp2p(libp2p)
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def from_mnemonic(mnemonic, scrypt_params=None):
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log.debug("key.from_mnemonic(%s, %s)" % (mnemonic, scrypt_params))
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try:
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return from_duniterpy(duniterpy.key.SigningKey.from_dubp_mnemonic(
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mnemonic,
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scrypt_params
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))
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except Exception as e:
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log.error(f'Unable to get key from mnemonic: {e}')
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exit(2)
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def from_pem(pem):
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log.debug("key.from_pem(%s)" % pem)
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return ed25519.from_pem(pem)
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def from_pgpy(self, pgpy, password):
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log.debug("key.from_pgpy(%s)" % pgpy)
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try:
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log.debug("key.pgpy.fingerprint.keyid=%s" % pgpy.fingerprint.keyid)
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log.debug("key.pgpy.is_protected=%s" % pgpy.is_protected)
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if pgpy.is_protected:
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if not password:
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with pynentry.PynEntry() as p:
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p.description = f"""The exported pgp key id "{pgpy.fingerprint.keyid}" is password protected.
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Please enter the passphrase again to unlock it.
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"""
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p.prompt = 'Passphrase:'
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try:
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password = p.get_pin()
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except pynentry.PinEntryCancelled:
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log.warning('Cancelled! Goodbye.')
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exit(1)
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try:
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with warnings.catch_warnings():
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# remove CryptographyDeprecationWarning about deprecated
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# SymmetricKeyAlgorithm IDEA, CAST5 and Blowfish (PGPy v0.5.4)
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warnings.simplefilter('ignore')
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with pgpy.unlock(password):
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assert pgpy.is_unlocked
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log.debug("ed25519.pgpy.is_unlocked=%s" % pgpy.is_unlocked)
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seed = self.ed25519_seed_bytes_from_pgpy()
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except Exception as e:
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log.error(f"""Unable to unlock pgp secret key id "{self.pgpy.fingerprint.keyid}" of user "{self.username}": {e}""")
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exit(2)
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else:
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seed = self.ed25519_seed_bytes_from_pgpy()
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self.ed25519_from_seed_bytes()
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except Exception as e:
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log.error(f'Unable to get ed25519 seed bytes from pgpy: {e}')
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exit(2)
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class key():
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def __init__(self):
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self.algorithm = 'undef'
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self.gpg = gpg.Context(armor=True, offline=True)
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self.gpg.set_passphrase_cb(self.gpg_passphrase_cb)
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def __del__(self):
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self._cleanup()
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def _cleanup(self):
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log.debug("key._cleanup()")
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raise NotImplementedError(f"_cleanup() is not implemented for algorithm {self.algorithm}")
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def gpg_passphrase_cb(self, uid_hint, passphrase_info, prev_was_bad):
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log.debug("key.gpg_passphrase_cb(%s, %s, %s)" % (uid_hint, passphrase_info, prev_was_bad))
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return self.password
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def to_b36mf(self):
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log.debug("key.to_b36mf()")
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if not hasattr(self, 'public_cidv1') or not hasattr(self, 'secret_cidv1'):
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self.to_cidv1()
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try:
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self.public_b36mf = 'k' + base36.dumps(int.from_bytes(self.public_cidv1, byteorder='big'))
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self.secret_b36mf = 'k' + base36.dumps(int.from_bytes(self.secret_cidv1, byteorder='big'))
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except Exception as e:
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log.error(f'Unable to get b36mf from cidv1: {e}')
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exit(2)
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log.debug("key.public_b36mf=%s" % self.public_b36mf)
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log.debug("key.secret_b36mf=%s" % self.secret_b36mf)
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def to_b58mf(self):
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log.debug("key.to_b58mf()")
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if not hasattr(self, 'public_cidv1') or not hasattr(self, 'secret_cidv1'):
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self.to_cidv1()
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try:
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self.public_b58mf = 'z' + base58.b58encode(self.public_cidv1).decode('ascii')
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self.secret_b58mf = 'z' + base58.b58encode(self.secret_cidv1).decode('ascii')
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except Exception as e:
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log.error(f'Unable to get b58mf from cidv1: {e}')
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exit(2)
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log.debug("key.public_b58mf=%s" % self.public_b58mf)
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log.debug("key.secret_b58mf=%s" % self.secret_b58mf)
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def to_b58mh(self):
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log.debug("key.to_b58mh()")
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if not hasattr(self, 'public_libp2p') or not hasattr(self, 'secret_libp2p'):
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self.to_libp2p()
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try:
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self.public_b58mh = base58.b58encode(self.public_libp2p).decode('ascii')
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self.secret_b58mh = base58.b58encode(self.secret_libp2p).decode('ascii')
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except Exception as e:
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log.error(f'Unable to get b58mh from libp2p: {e}')
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exit(2)
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log.debug("key.public_b58mh=%s" % self.public_b58mh)
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log.debug("key.secret_b58mh=%s" % self.secret_b58mh)
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def to_b64mh(self):
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log.debug("key.to_b64mh()")
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if not hasattr(self, 'public_libp2p') or not hasattr(self, 'secret_libp2p'):
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self.to_libp2p()
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try:
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self.public_b64mh = base64.b64encode(self.public_libp2p).decode('ascii')
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self.secret_b64mh = base64.b64encode(self.secret_libp2p).decode('ascii')
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except Exception as e:
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log.error(f'Unable to get b64mh from libp2p: {e}')
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exit(2)
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log.debug("key.public_b64mh=%s" % self.public_b64mh)
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log.debug("key.secret_b64mh=%s" % self.secret_b64mh)
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def to_base58(self):
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log.debug("key.to_base58()")
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try:
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self.public_base58 = base58.b58encode(self.public_bytes).decode('ascii')
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self.secret_base58 = base58.b58encode(self.secret_bytes).decode('ascii')
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except Exception as e:
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log.error(f'Unable to get base58: {e}')
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exit(2)
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log.debug("key.public_base58=%s" % self.public_base58)
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log.debug("key.secret_base58=%s" % self.secret_base58)
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def to_base64(self):
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log.debug("key.to_base64()")
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try:
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self.public_base64 = base64.b64encode(self.public_bytes).decode('ascii')
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self.secret_base64 = base64.b64encode(self.secret_bytes).decode('ascii')
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except Exception as e:
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log.error(f'Unable to get base64: {e}')
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exit(2)
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log.debug("key.public_base64=%s" % self.public_base64)
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log.debug("key.secret_base64=%s" % self.secret_base64)
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def to_cidv1(self):
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log.debug("key.to_cidv1()")
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if not hasattr(self, 'public_libp2p') or not hasattr(self, 'secret_libp2p'):
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self.to_libp2p()
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try:
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# \x01: multicodec cid prefix = CIDv1
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# \x72: multicodec content prefix = libp2p-key
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self.public_cidv1 = b'\x01\x72' + self.public_libp2p
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self.secret_cidv1 = b'\x01\x72' + self.secret_libp2p
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except Exception as e:
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log.error(f'Unable to get cidv1: {e}')
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exit(2)
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log.debug("key.public_cidv1=%s" % self.public_cidv1)
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log.debug("key.secret_cidv1=%s" % self.secret_cidv1)
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def to_duniterpy(self):
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log.debug("key.to_duniterpy()")
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raise NotImplementedError(f"to_duniterpy() is not implemented for algorithm {self.algorithm}")
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def to_file(self, output_file, file_format=None, password=None):
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log.debug("key().to_file(%s, %s, %s)" % (output_file, file_format, password))
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try:
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if file_format == 'dewif':
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if not hasattr(self, 'duniterpy'):
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self.to_duniterpy()
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if not password:
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with pynentry.PynEntry() as p:
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p.description = f"""Data in DEWIF file needs to be encrypted.
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Please enter a password to encrypt seed.
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"""
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p.prompt = 'Passphrase:'
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try:
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password = p.get_pin()
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except pynentry.PinEntryCancelled:
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log.warning('Cancelled! Goodbye.')
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exit(1)
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self.duniterpy.save_dewif_v1_file(output_file, password)
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elif file_format == 'ewif':
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if not hasattr(self, 'duniterpy'):
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self.to_duniterpy()
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if not password:
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with pynentry.PynEntry() as p:
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p.description = f"""Data in EWIF file needs to be encrypted.
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Please enter a password to encrypt seed.
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"""
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p.prompt = 'Passphrase:'
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try:
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password = p.get_pin()
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except pynentry.PinEntryCancelled:
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log.warning('Cancelled! Goodbye.')
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exit(1)
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self.duniterpy.save_ewif_file(output_file, password)
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elif file_format == 'jwk':
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if not hasattr(self, 'jwk'):
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self.to_jwk()
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with open(output_file, "w") as file:
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file.write(self.jwk.export())
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elif file_format == 'nacl':
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if not hasattr(self, 'duniterpy'):
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self.to_duniterpy()
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self.duniterpy.save_private_key(output_file)
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elif file_format == 'p2p':
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if not hasattr(self, 'secret_libp2p'):
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self.to_libp2p()
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with open(output_file, "wb") as file:
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file.write(self.secret_libp2p)
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elif file_format == 'pubsec':
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if not hasattr(self, 'duniterpy'):
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self.to_duniterpy()
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self.duniterpy.save_pubsec_file(output_file)
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elif file_format == 'seed':
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if not hasattr(self, 'duniterpy'):
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self.to_duniterpy()
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self.duniterpy.save_seedhex_file(output_file)
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elif file_format == 'wif':
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if not hasattr(self, 'duniterpy'):
|
|
self.to_duniterpy()
|
|
self.duniterpy.save_wif_file(output_file)
|
|
else:
|
|
if not hasattr(self, 'secret_pem_pkcs8'):
|
|
self.to_pem_pkcs8()
|
|
with open(output_file, "w") as file:
|
|
file.write(self.secret_pem_pkcs8)
|
|
except Exception as e:
|
|
log.error(f'Unable to write key to output file {output_file}: {e}')
|
|
exit(2)
|
|
|
|
def to_jwk(self):
|
|
log.debug("key.to_jwk()")
|
|
try:
|
|
if not hasattr(self, 'jwk'):
|
|
self.jwk = JWK.from_pyca(self.cryptography)
|
|
self.public_jwk = self.jwk.export_public()
|
|
self.secret_jwk = self.jwk.export_private()
|
|
except Exception as e:
|
|
log.error(f'Unable to get jwk: {e}')
|
|
exit(2)
|
|
|
|
def to_libp2p(self):
|
|
log.debug("key.to_libp2p()")
|
|
try:
|
|
if not hasattr(self, 'public_proto2') or not hasattr(self, 'secret_proto2'):
|
|
self.to_proto2()
|
|
# \x00: multihash prefix = raw id
|
|
# \x24: multihash length = 36 bytes
|
|
self.public_libp2p = b'\x00$' + self.public_proto2
|
|
self.secret_libp2p = self.secret_proto2
|
|
except Exception as e:
|
|
log.error(f'Unable to get libp2p: {e}')
|
|
exit(2)
|
|
log.debug("key.public_libp2p=%s" % self.public_libp2p)
|
|
log.debug("key.secret_libp2p=%s" % self.secret_libp2p)
|
|
|
|
def to_pem_pkcs8(self):
|
|
log.debug("key.to_pem_pkcs8()")
|
|
try:
|
|
self.secret_pem_pkcs8 = self.cryptography.private_bytes(
|
|
encoding=serialization.Encoding.PEM,
|
|
format=serialization.PrivateFormat.PKCS8,
|
|
encryption_algorithm=serialization.NoEncryption()
|
|
).decode('ascii')
|
|
except Exception as e:
|
|
log.error(f'Unable to get pem pkcs8: {e}')
|
|
exit(2)
|
|
log.debug("key.secret_pem_pkcs8=%s" % self.secret_pem_pkcs8)
|
|
|
|
def to_pgpy(self):
|
|
log.debug("key.to_pgpy()")
|
|
try:
|
|
self.gpg_secret_keys = list(self.gpg.keylist(pattern=self.username, secret=True))
|
|
log.debug("key.gpg_secret_keys=%s" % self.gpg_secret_keys)
|
|
if not self.gpg_secret_keys:
|
|
log.warning(f"""Unable to find any key matching "{self.username}".""")
|
|
exit(1)
|
|
else:
|
|
self.gpg_secret_key = self.gpg_secret_keys[0]
|
|
log.info(f"""Found key id "{self.gpg_secret_key.fpr}" matching "{self.username}".""")
|
|
log.debug("key.gpg_secret_key.expired=%s" % self.gpg_secret_key.expired)
|
|
log.debug("key.gpg_secret_key.fpr=%s" % self.gpg_secret_key.fpr)
|
|
log.debug("key.gpg_secret_key.revoked=%s" % self.gpg_secret_key.revoked)
|
|
log.debug("key.gpg_secret_key.uids=%s" % self.gpg_secret_key.uids)
|
|
log.debug("key.gpg_secret_key.owner_trust=%s" % self.gpg_secret_key.owner_trust)
|
|
log.debug("key.gpg_secret_key.last_update=%s" % self.gpg_secret_key.last_update)
|
|
if self.password:
|
|
self.gpg.set_pinentry_mode(gpg.constants.PINENTRY_MODE_LOOPBACK)
|
|
self.pgp_public_armor = self.gpg.key_export(self.gpg_secret_key.fpr)
|
|
self.pgp_secret_armor = self.gpg.key_export_secret(self.gpg_secret_key.fpr)
|
|
log.debug("key.pgp_secret_armor=%s" % self.pgp_secret_armor)
|
|
if not self.pgp_secret_armor:
|
|
log.error(f"""Unable to export gpg secret key id "{self.gpg_secret_key.fpr}" of user "{self.username}". Please check your password!""")
|
|
exit(2)
|
|
with warnings.catch_warnings():
|
|
# remove CryptographyDeprecationWarning about deprecated
|
|
# SymmetricKeyAlgorithm IDEA, CAST5 and Blowfish (PGPy v0.5.4)
|
|
warnings.simplefilter('ignore')
|
|
self.pgpy, _ = pgpy.PGPKey.from_blob(self.pgp_secret_armor)
|
|
except Exception as e:
|
|
log.error(f'Unable to get pgpy from gpg: {e}')
|
|
exit(2)
|
|
|
|
def to_proto2(self):
|
|
log.debug("key.to_proto2()")
|
|
raise NotImplementedError(f"to_proto2() is not implemented for algorithm {self.algorithm}")
|
|
|