ed5ef8293c
* lang/python/examples/howto/symcrypt-file.py: A variation on standard key based encryption.
64 lines
2.2 KiB
Python
Executable File
64 lines
2.2 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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from __future__ import absolute_import, division, unicode_literals
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import gpg
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import sys
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# Copyright (C) 2018 Ben McGinnes <ben@gnupg.org>
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation; either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License and the GNU
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# Lesser General Public Licensefor more details.
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#
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# You should have received a copy of the GNU General Public License and the GNU
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# Lesser General Public along with this program; if not, see
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# <http://www.gnu.org/licenses/>.
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"""
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Symmetrically encrypts a file. Passphrase will be prompted for via Pinentry.
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Will produce both an ASCII armoured and GPG binary format copy of the encrypted
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file.
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"""
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if len(sys.argv) > 2:
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filename = " ".join(sys.argv[1:])
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elif len(sys.argv) == 2:
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filename = sys.argv[1]
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else:
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filename = input("Enter the path and filename to encrypt: ")
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with open(filename, "rb") as f:
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text = f.read()
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with gpg.Context(armor=True) as ca:
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try:
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ciphertext, result, sign_result = ca.encrypt(text, passphrase=None,
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sign=False)
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with open("{0}.asc".format(filename), "wb") as fa:
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fa.write(ciphertext)
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except gpg.errors.InvalidRecipients as e:
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print(e)
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with gpg.Context() as cg:
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try:
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ciphertext, result, sign_result = cg.encrypt(text, passphrase=None,
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sign=False)
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with open("{0}.gpg".format(filename), "wb") as fg:
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fg.write(ciphertext)
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except gpg.errors.InvalidRecipients as e:
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print(e)
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