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py: added doc, unittests, anonymous encryption mode

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git@daemon.de
2014-12-24 11:17:03 +01:00
parent b52ac4b0df
commit 5f8d50ec47
11 changed files with 394 additions and 78 deletions
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43
bindings/py/pypcp/key.py
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@@ -1,8 +1,42 @@
#
# This file is part of Pretty Curved Privacy (pcp1).
#
# Copyright (C) 2013-2015 T. von Dein.
#
# 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 3 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 <http://www.gnu.org/licenses/>.
#
# You can contact me by mail: <tlinden AT cpan DOT org>.
#
from pypcp.dll import *
from pypcp.context import *
class Key(object):
"""
A libpcp secret key object.
"""
def __init__(self, owner=None, mail=None, sk=None, encoded=None, passphrase=None):
"""
Create a new secret key or import one.
If 'owner' or 'mail' are set, a new secret key will be generated.
If 'encoded' is provided, a key will be imported, 'encoded' can be a file
handle (returned by open()) or a python string. If the key is encrypted,
you need to supply 'passphrase' as well.
Without arguments an empty key object will be used. Don't do that.
"""
self._sk = None
if owner or mail:
@@ -26,16 +60,25 @@ class Key(object):
self.__setattr__(key, value)
def importkey(self, context, encoded=None, passphrase=None):
"""
Internal method to import a key from the outside.
"""
sk = libpcp.pcp_import_secret(context._ctx, encoded, len(encoded), passphrase)
if not sk:
context.throw(IOError, "failed to import key")
self._sk = sk
def generate(self, owner=None, mail=None):
"""
Internal method to generate a new secret key.
"""
self._sk = libpcp.pcpkey_new()
if owner:
libpcp.pcpkey_setowner(self._sk, owner, mail)
def dump(self):
"""
Dump the contents of the key to STDERR.
"""
if self._sk:
libpcp.pcp_dumpkey(self._sk)