Current File : //usr/share/doc/python3-gpg/examples/low_level-encrypt_to_all.py
#!/usr/bin/env python3
#
# Copyright (C) 2016 g10 Code GmbH
# Copyright (C) 2008 Igor Belyi <belyi@users.sourceforge.net>
# Copyright (C) 2002 John Goerzen <jgoerzen@complete.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <https://www.gnu.org/licenses/>.
"""
This program will try to encrypt a simple message to each key on your
keyring. If your keyring has any invalid keys on it, those keys will
be skipped and it will re-try the encryption."""
from __future__ import absolute_import, print_function, unicode_literals
import sys
import gpg
del absolute_import, print_function, unicode_literals
with gpg.Context(armor=True) as c:
recipients = list()
for key in c.keylist():
valid = 0
if any(sk.can_encrypt for sk in key.subkeys):
recipients.append(key)
print("Adding recipient {0}.".format(key.uids[0].uid))
ciphertext = None
while not ciphertext:
print("Encrypting to %d recipients" % len(recipients))
try:
ciphertext, _, _ = c.encrypt(
b'This is my message.', recipients=recipients)
except gpg.errors.InvalidRecipients as e:
print("Encryption failed for these keys:\n{0!s}".format(e))
# filter out the bad keys
bad_keys = {bad.fpr for bad in e.recipients}
recipients = [
r for r in recipients if not r.subkeys[0].fpr in bad_keys
]
sys.stdout.buffer.write(ciphertext)
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