diff --git a/lang/python/examples/howto/symcrypt-file.py b/lang/python/examples/howto/symcrypt-file.py new file mode 100755 index 00000000..2b242845 --- /dev/null +++ b/lang/python/examples/howto/symcrypt-file.py @@ -0,0 +1,63 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- + +from __future__ import absolute_import, division, unicode_literals + +import gpg +import sys + +# Copyright (C) 2018 Ben McGinnes +# +# 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 free software; you can redistribute it and/or modify it under +# the terms of the GNU Lesser General Public License as published by the Free +# Software Foundation; either version 2.1 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 and the GNU +# Lesser General Public Licensefor more details. +# +# You should have received a copy of the GNU General Public License and the GNU +# Lesser General Public along with this program; if not, see +# . + +""" +Symmetrically encrypts a file. Passphrase will be prompted for via Pinentry. + +Will produce both an ASCII armoured and GPG binary format copy of the encrypted +file. +""" + +if len(sys.argv) > 2: + filename = " ".join(sys.argv[1:]) +elif len(sys.argv) == 2: + filename = sys.argv[1] +else: + filename = input("Enter the path and filename to encrypt: ") + +with open(filename, "rb") as f: + text = f.read() + +with gpg.Context(armor=True) as ca: + try: + ciphertext, result, sign_result = ca.encrypt(text, passphrase=None, + sign=False) + with open("{0}.asc".format(filename), "wb") as fa: + fa.write(ciphertext) + except gpg.errors.InvalidRecipients as e: + print(e) + +with gpg.Context() as cg: + try: + ciphertext, result, sign_result = cg.encrypt(text, passphrase=None, + sign=False) + with open("{0}.gpg".format(filename), "wb") as fg: + fg.write(ciphertext) + except gpg.errors.InvalidRecipients as e: + print(e)