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| -rw-r--r-- | LICENSE | 698 | ||||
| -rw-r--r-- | README.rst | 6 | ||||
| -rw-r--r-- | setup.py | 58 | ||||
| -rw-r--r-- | src/leap/__init__.py | 6 | ||||
| -rw-r--r-- | src/leap/keymanager/__init__.py | 336 | ||||
| -rw-r--r-- | src/leap/keymanager/errors.py | 86 | ||||
| -rw-r--r-- | src/leap/keymanager/gpg.py | 397 | ||||
| -rw-r--r-- | src/leap/keymanager/keys.py | 285 | ||||
| -rw-r--r-- | src/leap/keymanager/openpgp.py | 636 | ||||
| -rw-r--r-- | src/leap/keymanager/tests/__init__.py | 0 | ||||
| -rw-r--r-- | src/leap/keymanager/tests/test_keymanager.py | 676 |
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@@ -0,0 +1,698 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. We, the Free Software Foundation, use the +GNU General Public License for most of our software; it applies also to +any other work released this way by its authors. You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. 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If not, see <http://www.gnu.org/licenses/>. + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + <program> Copyright (C) <year> <name of author> + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +<http://www.gnu.org/licenses/>. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +<http://www.gnu.org/philosophy/why-not-lgpl.html>. + +-------------------------------------------------------------------------------- + +Leap-client also uses third party icons: + +--- +data/images/Arrow-Up-32.png +data/images/Arrow-Down-32.png + +Author: Liam McKay +License: GNU General Public License - http://en.wikipedia.org/wiki/GNU_General_Public_License +WebSite: http://wefunction.com/ +IconPackage: WooFunction icon pack - http://www.iconspedia.com/pack/woofunction-icons-4136/ +--- +data/images/Globe.png + +Author: Everaldo Coelho +License: LGPL - http://www.gnu.org/licenses/lgpl.html +WebSite: http://www.everaldo.com/ +--- +data/images/oxygen-icons/ + +License: LGPL - http://www.gnu.org/licenses/lgpl.html +Website: http://www.oxygen-icons.org/ diff --git a/README.rst b/README.rst new file mode 100644 index 0000000..f542214 --- /dev/null +++ b/README.rst @@ -0,0 +1,6 @@ +LEAP's Key Manager +================== + +The Key Manager is a Nicknym agent for LEAP client: + + https://leap.se/pt/docs/design/nicknym diff --git a/setup.py b/setup.py new file mode 100644 index 0000000..83aeddb --- /dev/null +++ b/setup.py @@ -0,0 +1,58 @@ +# -*- coding: utf-8 -*- +# setup.py +# Copyright (C) 2013 LEAP +# +# 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/>. + + +from setuptools import ( + setup, + find_packages +) + + +install_requirements = [ + 'leap.common', + 'simplejson', + 'requests', + 'python-gnupg', +] + + +tests_requirements = [ + 'mock', + 'leap.soledad', +] + + +setup( + name='leap.keymanager', + version='0.2.1', + url='https://leap.se/', + license='GPLv3+', + description='LEAP\'s Key Manager', + author='The LEAP Encryption Access Project', + author_email='info@leap.se', + long_description=( + "The Key Manager handles all types of keys to allow for " + "point-to-point encryption between parties communicating through " + "LEAP infrastructure." + ), + namespace_packages=["leap"], + packages=find_packages('src', exclude=['leap.keymanager.tests']), + package_dir={'': 'src'}, + test_suite='leap.keymanager.tests', + install_requires=install_requirements, + tests_require=tests_requirements, +) diff --git a/src/leap/__init__.py b/src/leap/__init__.py new file mode 100644 index 0000000..f48ad10 --- /dev/null +++ b/src/leap/__init__.py @@ -0,0 +1,6 @@ +# See http://peak.telecommunity.com/DevCenter/setuptools#namespace-packages +try: + __import__('pkg_resources').declare_namespace(__name__) +except ImportError: + from pkgutil import extend_path + __path__ = extend_path(__path__, __name__) diff --git a/src/leap/keymanager/__init__.py b/src/leap/keymanager/__init__.py new file mode 100644 index 0000000..e1f318c --- /dev/null +++ b/src/leap/keymanager/__init__.py @@ -0,0 +1,336 @@ +# -*- coding: utf-8 -*- +# __init__.py +# Copyright (C) 2013 LEAP +# +# 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/>. + + +""" +Key Manager is a Nicknym agent for LEAP client. +""" + +import requests + +from leap.common.check import leap_assert +from leap.keymanager.errors import ( + KeyNotFound, + NoPasswordGiven, +) +from leap.keymanager.keys import ( + build_key_from_dict, + KEYMANAGER_KEY_TAG, + TAGS_PRIVATE_INDEX, +) +from leap.keymanager.openpgp import ( + OpenPGPKey, + OpenPGPScheme, +) + + +# +# The Key Manager +# + +class KeyManager(object): + + # + # server's key storage constants + # + + OPENPGP_KEY = 'openpgp' + PUBKEY_KEY = "user[public_key]" + + def __init__(self, address, nickserver_uri, soledad, session_id=None, + ca_cert_path=None, api_uri=None, api_version=None, uid=None): + """ + Initialize a Key Manager for user's C{address} with provider's + nickserver reachable in C{url}. + + :param address: The address of the user of this Key Manager. + :type address: str + :param url: The URL of the nickserver. + :type url: str + :param soledad: A Soledad instance for local storage of keys. + :type soledad: leap.soledad.Soledad + :param session_id: The session ID for interacting with the webapp API. + :type session_id: str + :param ca_cert_path: The path to the CA certificate. + :type ca_cert_path: str + :param api_uri: The URI of the webapp API. + :type api_uri: str + :param api_version: The version of the webapp API. + :type api_version: str + :param uid: The users' UID. + :type uid: str + """ + self._address = address + self._nickserver_uri = nickserver_uri + self._soledad = soledad + self._session_id = session_id + self.ca_cert_path = ca_cert_path + self.api_uri = api_uri + self.api_version = api_version + self.uid = uid + # a dict to map key types to their handlers + self._wrapper_map = { + OpenPGPKey: OpenPGPScheme(soledad), + # other types of key will be added to this mapper. + } + # the following are used to perform https requests + self._fetcher = requests + self._session = self._fetcher.session() + + # + # utilities + # + + def _key_class_from_type(self, ktype): + """ + Return key class from string representation of key type. + """ + return filter( + lambda klass: str(klass) == ktype, + self._wrapper_map).pop() + + def _get(self, uri, data=None): + """ + Send a GET request to C{uri} containing C{data}. + + :param uri: The URI of the request. + :type uri: str + :param data: The body of the request. + :type data: dict, str or file + + :return: The response to the request. + :rtype: requests.Response + """ + leap_assert( + self._ca_cert_path is not None, + 'We need the CA certificate path!') + res = self._fetcher.get(uri, data=data, verify=self._ca_cert_path) + # assert that the response is valid + res.raise_for_status() + leap_assert( + res.headers['content-type'].startswith('application/json'), + 'Content-type is not JSON.') + return res + + def _put(self, uri, data=None): + """ + Send a PUT request to C{uri} containing C{data}. + + The request will be sent using the configured CA certificate path to + verify the server certificate and the configured session id for + authentication. + + :param uri: The URI of the request. + :type uri: str + :param data: The body of the request. + :type data: dict, str or file + + :return: The response to the request. + :rtype: requests.Response + """ + leap_assert( + self._ca_cert_path is not None, + 'We need the CA certificate path!') + leap_assert( + self._session_id is not None, + 'We need a session_id to interact with webapp!') + res = self._fetcher.put( + uri, data=data, verify=self._ca_cert_path, + cookies={'_session_id': self._session_id}) + # assert that the response is valid + res.raise_for_status() + return res + + def _fetch_keys_from_server(self, address): + """ + Fetch keys bound to C{address} from nickserver and insert them in + local database. + + :param address: The address bound to the keys. + :type address: str + + @raise KeyNotFound: If the key was not found on nickserver. + """ + # request keys from the nickserver + server_keys = self._get( + self._nickserver_uri, {'address': address}).json() + # insert keys in local database + if self.OPENPGP_KEY in server_keys: + self._wrapper_map[OpenPGPKey].put_ascii_key( + server_keys['openpgp']) + + # + # key management + # + + def send_key(self, ktype): + """ + Send user's key of type C{ktype} to provider. + + Public key bound to user's is sent to provider, which will sign it and + replace any prior keys for the same address in its database. + + If C{send_private} is True, then the private key is encrypted with + C{password} and sent to server in the same request, together with a + hash string of user's address and password. The encrypted private key + will be saved in the server in a way it is publicly retrievable + through the hash string. + + :param ktype: The type of the key. + :type ktype: KeyType + + @raise KeyNotFound: If the key was not found in local database. + """ + leap_assert( + ktype is OpenPGPKey, + 'For now we only know how to send OpenPGP public keys.') + # prepare the public key bound to address + pubkey = self.get_key( + self._address, ktype, private=False, fetch_remote=False) + data = { + self.PUBKEY_KEY: pubkey.key_data + } + uri = "%s/%s/users/%s.json" % ( + self._api_uri, + self._api_version, + self._uid) + self._put(uri, data) + + def get_key(self, address, ktype, private=False, fetch_remote=True): + """ + Return a key of type C{ktype} bound to C{address}. + + First, search for the key in local storage. If it is not available, + then try to fetch from nickserver. + + :param address: The address bound to the key. + :type address: str + :param ktype: The type of the key. + :type ktype: KeyType + :param private: Look for a private key instead of a public one? + :type private: bool + + :return: A key of type C{ktype} bound to C{address}. + :rtype: EncryptionKey + @raise KeyNotFound: If the key was not found both locally and in + keyserver. + """ + leap_assert( + ktype in self._wrapper_map, + 'Unkown key type: %s.' % str(ktype)) + try: + # return key if it exists in local database + return self._wrapper_map[ktype].get_key(address, private=private) + except KeyNotFound: + # we will only try to fetch a key from nickserver if fetch_remote + # is True and the key is not private. + if fetch_remote is False or private is True: + raise + self._fetch_keys_from_server(address) + return self._wrapper_map[ktype].get_key(address, private=False) + + def get_all_keys_in_local_db(self, private=False): + """ + Return all keys stored in local database. + + :return: A list with all keys in local db. + :rtype: list + """ + return map( + lambda doc: build_key_from_dict( + self._key_class_from_type(doc.content['type']), + doc.content['address'], + doc.content), + self._soledad.get_from_index( + TAGS_PRIVATE_INDEX, + KEYMANAGER_KEY_TAG, + '1' if private else '0')) + + def refresh_keys(self): + """ + Fetch keys from nickserver and update them locally. + """ + addresses = set(map( + lambda doc: doc.address, + self.get_all_keys_in_local_db(private=False))) + for address in addresses: + # do not attempt to refresh our own key + if address == self._address: + continue + self._fetch_keys_from_server(address) + + def gen_key(self, ktype): + """ + Generate a key of type C{ktype} bound to the user's address. + + :param ktype: The type of the key. + :type ktype: KeyType + + :return: The generated key. + :rtype: EncryptionKey + """ + return self._wrapper_map[ktype].gen_key(self._address) + + # + # Setters/getters + # + + def _get_session_id(self): + return self._session_id + + def _set_session_id(self, session_id): + self._session_id = session_id + + session_id = property( + _get_session_id, _set_session_id, doc='The session id.') + + def _get_ca_cert_path(self): + return self._ca_cert_path + + def _set_ca_cert_path(self, ca_cert_path): + self._ca_cert_path = ca_cert_path + + ca_cert_path = property( + _get_ca_cert_path, _set_ca_cert_path, + doc='The path to the CA certificate.') + + def _get_api_uri(self): + return self._api_uri + + def _set_api_uri(self, api_uri): + self._api_uri = api_uri + + api_uri = property( + _get_api_uri, _set_api_uri, doc='The webapp API URI.') + + def _get_api_version(self): + return self._api_version + + def _set_api_version(self, api_version): + self._api_version = api_version + + api_version = property( + _get_api_version, _set_api_version, doc='The webapp API version.') + + def _get_uid(self): + return self._uid + + def _set_uid(self, uid): + self._uid = uid + + uid = property( + _get_uid, _set_uid, doc='The uid of the user.') diff --git a/src/leap/keymanager/errors.py b/src/leap/keymanager/errors.py new file mode 100644 index 0000000..89949d2 --- /dev/null +++ b/src/leap/keymanager/errors.py @@ -0,0 +1,86 @@ +# -*- coding: utf-8 -*- +# errors.py +# Copyright (C) 2013 LEAP +# +# 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/>. + + +""" +Errors and exceptions used by the Key Manager. +""" + + +class KeyNotFound(Exception): + """ + Raised when key was no found on keyserver. + """ + pass + + +class KeyAlreadyExists(Exception): + """ + Raised when attempted to create a key that already exists. + """ + pass + + +class KeyAttributesDiffer(Exception): + """ + Raised when trying to delete a key but the stored key differs from the key + passed to the delete_key() method. + """ + pass + + +class NoPasswordGiven(Exception): + """ + Raised when trying to perform some action that needs a password without + providing one. + """ + pass + + +class InvalidSignature(Exception): + """ + Raised when signature could not be verified. + """ + pass + + +class EncryptionFailed(Exception): + """ + Raised upon failures of encryption. + """ + pass + + +class DecryptionFailed(Exception): + """ + Raised upon failures of decryption. + """ + pass + + +class EncryptionDecryptionFailed(Exception): + """ + Raised upon failures of encryption/decryption. + """ + pass + + +class SignFailed(Exception): + """ + Raised when failed to sign. + """ + pass diff --git a/src/leap/keymanager/gpg.py b/src/leap/keymanager/gpg.py new file mode 100644 index 0000000..15c1d9f --- /dev/null +++ b/src/leap/keymanager/gpg.py @@ -0,0 +1,397 @@ +# -*- coding: utf-8 -*- +# gpgwrapper.py +# Copyright (C) 2013 LEAP +# +# 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/>. + + +""" +A GPG wrapper used to handle OpenPGP keys. + +This is a temporary class that will be superseded by the a revised version of +python-gnupg. +""" + + +import os +import gnupg +import re +from gnupg import ( + logger, + _is_sequence, + _make_binary_stream, +) + + +class ListPackets(): + """ + Handle status messages for --list-packets. + """ + + def __init__(self, gpg): + """ + Initialize the packet listing handling class. + + :param gpg: GPG object instance. + :type gpg: gnupg.GPG + """ + self.gpg = gpg + self.nodata = None + self.key = None + self.need_passphrase = None + self.need_passphrase_sym = None + self.userid_hint = None + + def handle_status(self, key, value): + """ + Handle one line of the --list-packets status message. + + :param key: The status message key. + :type key: str + :param value: The status message value. + :type value: str + """ + # TODO: write tests for handle_status + if key == 'NODATA': + self.nodata = True + if key == 'ENC_TO': + # This will only capture keys in our keyring. In the future we + # may want to include multiple unknown keys in this list. + self.key, _, _ = value.split() + if key == 'NEED_PASSPHRASE': + self.need_passphrase = True + if key == 'NEED_PASSPHRASE_SYM': + self.need_passphrase_sym = True + if key == 'USERID_HINT': + self.userid_hint = value.strip().split() + + +class GPGWrapper(gnupg.GPG): + """ + This is a temporary class for handling GPG requests, and should be + replaced by a more general class used throughout the project. + """ + + GNUPG_HOME = os.environ['HOME'] + "/.config/leap/gnupg" + GNUPG_BINARY = "/usr/bin/gpg" # this has to be changed based on OS + + def __init__(self, gpgbinary=GNUPG_BINARY, gnupghome=GNUPG_HOME, + verbose=False, use_agent=False, keyring=None, options=None): + """ + Initialize a GnuPG process wrapper. + + :param gpgbinary: Name for GnuPG binary executable. + :type gpgbinary: C{str} + :param gpghome: Full pathname to directory containing the public and + private keyrings. + :type gpghome: C{str} + :param keyring: Name of alternative keyring file to use. If specified, + the default keyring is not used. + :param verbose: Should some verbose info be output? + :type verbose: bool + :param use_agent: Should pass `--use-agent` to GPG binary? + :type use_agent: bool + :param keyring: Path for the keyring to use. + :type keyring: str + @options: A list of additional options to pass to the GPG binary. + :type options: list + + @raise: RuntimeError with explanation message if there is a problem + invoking gpg. + """ + gnupg.GPG.__init__(self, gnupghome=gnupghome, gpgbinary=gpgbinary, + verbose=verbose, use_agent=use_agent, + keyring=keyring, options=options) + self.result_map['list-packets'] = ListPackets + + def find_key_by_email(self, email, secret=False): + """ + Find user's key based on their email. + + :param email: Email address of key being searched for. + :type email: str + :param secret: Should we search for a secret key? + :type secret: bool + + :return: The fingerprint of the found key. + :rtype: str + """ + for key in self.list_keys(secret=secret): + for uid in key['uids']: + if re.search(email, uid): + return key + raise LookupError("GnuPG public key for email %s not found!" % email) + + def find_key_by_subkey(self, subkey, secret=False): + """ + Find user's key based on a subkey fingerprint. + + :param email: Subkey fingerprint of the key being searched for. + :type email: str + :param secret: Should we search for a secret key? + :type secret: bool + + :return: The fingerprint of the found key. + :rtype: str + """ + for key in self.list_keys(secret=secret): + for sub in key['subkeys']: + if sub[0] == subkey: + return key + raise LookupError( + "GnuPG public key for subkey %s not found!" % subkey) + + def find_key_by_keyid(self, keyid, secret=False): + """ + Find user's key based on the key ID. + + :param email: The key ID of the key being searched for. + :type email: str + :param secret: Should we search for a secret key? + :type secret: bool + + :return: The fingerprint of the found key. + :rtype: str + """ + for key in self.list_keys(secret=secret): + if keyid == key['keyid']: + return key + raise LookupError( + "GnuPG public key for keyid %s not found!" % keyid) + + def find_key_by_fingerprint(self, fingerprint, secret=False): + """ + Find user's key based on the key fingerprint. + + :param email: The fingerprint of the key being searched for. + :type email: str + :param secret: Should we search for a secret key? + :type secret: bool + + :return: The fingerprint of the found key. + :rtype: str + """ + for key in self.list_keys(secret=secret): + if fingerprint == key['fingerprint']: + return key + raise LookupError( + "GnuPG public key for fingerprint %s not found!" % fingerprint) + + def encrypt(self, data, recipient, sign=None, always_trust=True, + passphrase=None, symmetric=False): + """ + Encrypt data using GPG. + + :param data: The data to be encrypted. + :type data: str + :param recipient: The address of the public key to be used. + :type recipient: str + :param sign: Should the encrypted content be signed? + :type sign: bool + :param always_trust: Skip key validation and assume that used keys + are always fully trusted? + :type always_trust: bool + :param passphrase: The passphrase to be used if symmetric encryption + is desired. + :type passphrase: str + :param symmetric: Should we encrypt to a password? + :type symmetric: bool + + :return: An object with encrypted result in the `data` field. + :rtype: gnupg.Crypt + """ + # TODO: devise a way so we don't need to "always trust". + return gnupg.GPG.encrypt(self, data, recipient, sign=sign, + always_trust=always_trust, + passphrase=passphrase, + symmetric=symmetric, + cipher_algo='AES256') + + def decrypt(self, data, always_trust=True, passphrase=None): + """ + Decrypt data using GPG. + + :param data: The data to be decrypted. + :type data: str + :param always_trust: Skip key validation and assume that used keys + are always fully trusted? + :type always_trust: bool + :param passphrase: The passphrase to be used if symmetric encryption + is desired. + :type passphrase: str + + :return: An object with decrypted result in the `data` field. + :rtype: gnupg.Crypt + """ + # TODO: devise a way so we don't need to "always trust". + return gnupg.GPG.decrypt(self, data, always_trust=always_trust, + passphrase=passphrase) + + def send_keys(self, keyserver, *keyids): + """ + Send keys to a keyserver + + :param keyserver: The keyserver to send the keys to. + :type keyserver: str + :param keyids: The key ids to send. + :type keyids: list + + :return: A list of keys sent to server. + :rtype: gnupg.ListKeys + """ + # TODO: write tests for this. + # TODO: write a SendKeys class to handle status for this. + result = self.result_map['list'](self) + gnupg.logger.debug('send_keys: %r', keyids) + data = gnupg._make_binary_stream("", self.encoding) + args = ['--keyserver', keyserver, '--send-keys'] + args.extend(keyids) + self._handle_io(args, data, result, binary=True) + gnupg.logger.debug('send_keys result: %r', result.__dict__) + data.close() + return result + + def encrypt_file(self, file, recipients, sign=None, + always_trust=False, passphrase=None, + armor=True, output=None, symmetric=False, + cipher_algo=None): + """ + Encrypt the message read from the file-like object 'file'. + + :param file: The file to be encrypted. + :type data: file + :param recipient: The address of the public key to be used. + :type recipient: str + :param sign: Should the encrypted content be signed? + :type sign: bool + :param always_trust: Skip key validation and assume that used keys + are always fully trusted? + :type always_trust: bool + :param passphrase: The passphrase to be used if symmetric encryption + is desired. + :type passphrase: str + :param armor: Create ASCII armored output? + :type armor: bool + :param output: Path of file to write results in. + :type output: str + :param symmetric: Should we encrypt to a password? + :type symmetric: bool + :param cipher_algo: Algorithm to use. + :type cipher_algo: str + + :return: An object with encrypted result in the `data` field. + :rtype: gnupg.Crypt + """ + args = ['--encrypt'] + if symmetric: + args = ['--symmetric'] + if cipher_algo: + args.append('--cipher-algo %s' % cipher_algo) + else: + args = ['--encrypt'] + if not _is_sequence(recipients): + recipients = (recipients,) + for recipient in recipients: + args.append('--recipient "%s"' % recipient) + if armor: # create ascii-armored output - set to False for binary + args.append('--armor') + if output: # write the output to a file with the specified name + if os.path.exists(output): + os.remove(output) # to avoid overwrite confirmation message + args.append('--output "%s"' % output) + if sign: + args.append('--sign --default-key "%s"' % sign) + if always_trust: + args.append("--always-trust") + result = self.result_map['crypt'](self) + self._handle_io(args, file, result, passphrase=passphrase, binary=True) + logger.debug('encrypt result: %r', result.data) + return result + + def list_packets(self, data): + """ + List the sequence of packets. + + :param data: The data to extract packets from. + :type data: str + + :return: An object with packet info. + :rtype ListPackets + """ + args = ["--list-packets"] + result = self.result_map['list-packets'](self) + self._handle_io( + args, + _make_binary_stream(data, self.encoding), + result, + ) + return result + + def encrypted_to(self, data): + """ + Return the key to which data is encrypted to. + + :param data: The data to be examined. + :type data: str + + :return: The fingerprint of the key to which data is encrypted to. + :rtype: str + """ + # TODO: make this support multiple keys. + result = self.list_packets(data) + if not result.key: + raise LookupError( + "Content is not encrypted to a GnuPG key!") + try: + return self.find_key_by_keyid(result.key) + except: + return self.find_key_by_subkey(result.key) + + def is_encrypted_sym(self, data): + """ + Say whether some chunk of data is encrypted to a symmetric key. + + :param data: The data to be examined. + :type data: str + + :return: Whether data is encrypted to a symmetric key. + :rtype: bool + """ + result = self.list_packets(data) + return bool(result.need_passphrase_sym) + + def is_encrypted_asym(self, data): + """ + Say whether some chunk of data is encrypted to a private key. + + :param data: The data to be examined. + :type data: str + + :return: Whether data is encrypted to a private key. + :rtype: bool + """ + result = self.list_packets(data) + return bool(result.key) + + def is_encrypted(self, data): + """ + Say whether some chunk of data is encrypted to a key. + + :param data: The data to be examined. + :type data: str + + :return: Whether data is encrypted to a key. + :rtype: bool + """ + return self.is_encrypted_asym(data) or self.is_encrypted_sym(data) diff --git a/src/leap/keymanager/keys.py b/src/leap/keymanager/keys.py new file mode 100644 index 0000000..44bd587 --- /dev/null +++ b/src/leap/keymanager/keys.py @@ -0,0 +1,285 @@ +# -*- coding: utf-8 -*- +# keys.py +# Copyright (C) 2013 LEAP +# +# 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/>. + + +""" +Abstact key type and encryption scheme representations. +""" + + +try: + import simplejson as json +except ImportError: + import json # noqa +import re + + +from abc import ABCMeta, abstractmethod +from leap.common.check import leap_assert + + +# +# Dictionary keys used for storing cryptographic keys. +# + +KEY_ADDRESS_KEY = 'address' +KEY_TYPE_KEY = 'type' +KEY_ID_KEY = 'key_id' +KEY_FINGERPRINT_KEY = 'fingerprint' +KEY_DATA_KEY = 'key_data' +KEY_PRIVATE_KEY = 'private' +KEY_LENGTH_KEY = 'length' +KEY_EXPIRY_DATE_KEY = 'expiry_date' +KEY_FIRST_SEEN_AT_KEY = 'first_seen_at' +KEY_LAST_AUDITED_AT_KEY = 'last_audited_at' +KEY_VALIDATION_KEY = 'validation' +KEY_TAGS_KEY = 'tags' + + +# +# Key storage constants +# + +KEYMANAGER_KEY_TAG = 'keymanager-key' + + +# +# key indexing constants. +# + +TAGS_PRIVATE_INDEX = 'by-tags-private' +TAGS_ADDRESS_PRIVATE_INDEX = 'by-tags-address-private' +INDEXES = { + TAGS_PRIVATE_INDEX: [ + KEY_TAGS_KEY, + 'bool(%s)' % KEY_PRIVATE_KEY, + ], + TAGS_ADDRESS_PRIVATE_INDEX: [ + KEY_TAGS_KEY, + KEY_ADDRESS_KEY, + 'bool(%s)' % KEY_PRIVATE_KEY, + ] +} + + +# +# Key handling utilities +# + +def is_address(address): + """ + Return whether the given C{address} is in the form user@provider. + + :param address: The address to be tested. + :type address: str + :return: Whether C{address} is in the form user@provider. + :rtype: bool + """ + return bool(re.match('[\w.-]+@[\w.-]+', address)) + + +def build_key_from_dict(kClass, address, kdict): + """ + Build an C{kClass} key bound to C{address} based on info in C{kdict}. + + :param address: The address bound to the key. + :type address: str + :param kdict: Dictionary with key data. + :type kdict: dict + :return: An instance of the key. + :rtype: C{kClass} + """ + leap_assert( + address == kdict[KEY_ADDRESS_KEY], + 'Wrong address in key data.') + return kClass( + address, + key_id=kdict[KEY_ID_KEY], + fingerprint=kdict[KEY_FINGERPRINT_KEY], + key_data=kdict[KEY_DATA_KEY], + private=kdict[KEY_PRIVATE_KEY], + length=kdict[KEY_LENGTH_KEY], + expiry_date=kdict[KEY_EXPIRY_DATE_KEY], + first_seen_at=kdict[KEY_FIRST_SEEN_AT_KEY], + last_audited_at=kdict[KEY_LAST_AUDITED_AT_KEY], + validation=kdict[KEY_VALIDATION_KEY], # TODO: verify for validation. + ) + + +# +# Abstraction for encryption keys +# + +class EncryptionKey(object): + """ + Abstract class for encryption keys. + + A key is "validated" if the nicknym agent has bound the user address to a + public key. Nicknym supports three different levels of key validation: + + * Level 3 - path trusted: A path of cryptographic signatures can be traced + from a trusted key to the key under evaluation. By default, only the + provider key from the user's provider is a "trusted key". + * level 2 - provider signed: The key has been signed by a provider key for + the same domain, but the provider key is not validated using a trust + path (i.e. it is only registered) + * level 1 - registered: The key has been encountered and saved, it has no + signatures (that are meaningful to the nicknym agent). + """ + + __metaclass__ = ABCMeta + + def __init__(self, address, key_id=None, fingerprint=None, + key_data=None, private=None, length=None, expiry_date=None, + validation=None, first_seen_at=None, last_audited_at=None): + self.address = address + self.key_id = key_id + self.fingerprint = fingerprint + self.key_data = key_data + self.private = private + self.length = length + self.expiry_date = expiry_date + self.validation = validation + self.first_seen_at = first_seen_at + self.last_audited_at = last_audited_at + + def get_json(self): + """ + Return a JSON string describing this key. + + :return: The JSON string describing this key. + :rtype: str + """ + return json.dumps({ + KEY_ADDRESS_KEY: self.address, + KEY_TYPE_KEY: str(self.__class__), + KEY_ID_KEY: self.key_id, + KEY_FINGERPRINT_KEY: self.fingerprint, + KEY_DATA_KEY: self.key_data, + KEY_PRIVATE_KEY: self.private, + KEY_LENGTH_KEY: self.length, + KEY_EXPIRY_DATE_KEY: self.expiry_date, + KEY_VALIDATION_KEY: self.validation, + KEY_FIRST_SEEN_AT_KEY: self.first_seen_at, + KEY_LAST_AUDITED_AT_KEY: self.last_audited_at, + KEY_TAGS_KEY: [KEYMANAGER_KEY_TAG], + }) + + def __repr__(self): + """ + Representation of this class + """ + return u"<%s 0x%s (%s - %s)>" % ( + self.__class__.__name__, + self.key_id, + self.address, + "priv" if self.private else "publ") + + +# +# Encryption schemes +# + +class EncryptionScheme(object): + """ + Abstract class for Encryption Schemes. + + A wrapper for a certain encryption schemes should know how to get and put + keys in local storage using Soledad, how to generate new keys and how to + find out about possibly encrypted content. + """ + + __metaclass__ = ABCMeta + + def __init__(self, soledad): + """ + Initialize this Encryption Scheme. + + :param soledad: A Soledad instance for local storage of keys. + :type soledad: leap.soledad.Soledad + """ + self._soledad = soledad + self._init_indexes() + + def _init_indexes(self): + """ + Initialize the database indexes. + """ + # Ask the database for currently existing indexes. + db_indexes = dict(self._soledad.list_indexes()) + # Loop through the indexes we expect to find. + for name, expression in INDEXES.items(): + if name not in db_indexes: + # The index does not yet exist. + self._soledad.create_index(name, *expression) + continue + if expression == db_indexes[name]: + # The index exists and is up to date. + continue + # The index exists but the definition is not what expected, so we + # delete it and add the proper index expression. + self._soledad.delete_index(name) + self._soledad.create_index(name, *expression) + + @abstractmethod + def get_key(self, address, private=False): + """ + Get key from local storage. + + :param address: The address bound to the key. + :type address: str + :param private: Look for a private key instead of a public one? + :type private: bool + + :return: The key bound to C{address}. + :rtype: EncryptionKey + @raise KeyNotFound: If the key was not found on local storage. + """ + pass + + @abstractmethod + def put_key(self, key): + """ + Put a key in local storage. + + :param key: The key to be stored. + :type key: EncryptionKey + """ + pass + + @abstractmethod + def gen_key(self, address): + """ + Generate a new key. + + :param address: The address bound to the key. + :type address: str + + :return: The key bound to C{address}. + :rtype: EncryptionKey + """ + pass + + @abstractmethod + def delete_key(self, key): + """ + Remove C{key} from storage. + + :param key: The key to be removed. + :type key: EncryptionKey + """ + pass diff --git a/src/leap/keymanager/openpgp.py b/src/leap/keymanager/openpgp.py new file mode 100644 index 0000000..d19bb2b --- /dev/null +++ b/src/leap/keymanager/openpgp.py @@ -0,0 +1,636 @@ +# -*- coding: utf-8 -*- +# openpgp.py +# Copyright (C) 2013 LEAP +# +# 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/>. + +""" +Infrastructure for using OpenPGP keys in Key Manager. +""" +import logging +import os +import re +import shutil +import tempfile + +from leap.common.check import leap_assert, leap_assert_type +from leap.keymanager import errors +from leap.keymanager.keys import ( + EncryptionKey, + EncryptionScheme, + is_address, + build_key_from_dict, + KEYMANAGER_KEY_TAG, + TAGS_ADDRESS_PRIVATE_INDEX, +) +from leap.keymanager.gpg import GPGWrapper + +logger = logging.getLogger(__name__) + + +# +# gpg wrapper and decorator +# + +def temporary_gpgwrapper(keys=None): + """ + Returns a unitary gpg wrapper that implements context manager + protocol. + + :param key_data: ASCII armored key data. + :type key_data: str + + :return: a GPGWrapper instance + :rtype: GPGWrapper + """ + # TODO do here checks on key_data + return TempGPGWrapper(keys=keys) + + +def with_temporary_gpg(fun): + """ + Decorator to add a temporary gpg wrapper as context + to gpg related functions. + + Decorated functions are expected to return a function whose only + argument is a gpgwrapper instance. + """ + def wrapped(*args, **kwargs): + """ + We extract the arguments passed to the wrapped function, + run the function and do validations. + We expect that the positional arguments are `data`, + and an optional `key`. + All the rest of arguments should be passed as named arguments + to allow for a correct unpacking. + """ + if len(args) == 2: + keys = args[1] if isinstance(args[1], OpenPGPKey) else None + else: + keys = None + + # sign/verify keys passed as arguments + sign = kwargs.get('sign', None) + if sign: + keys = [keys, sign] + + verify = kwargs.get('verify', None) + if verify: + keys = [keys, verify] + + # is the wrapped function sign or verify? + fun_name = fun.__name__ + is_sign_function = True if fun_name == "sign" else False + is_verify_function = True if fun_name == "verify" else False + + result = None + + with temporary_gpgwrapper(keys) as gpg: + result = fun(*args, **kwargs)(gpg) + + # TODO: cleanup a little bit the + # validation. maybe delegate to other + # auxiliary functions for clarity. + + ok = getattr(result, 'ok', None) + + stderr = getattr(result, 'stderr', None) + if stderr: + logger.debug("%s" % (stderr,)) + + if ok is False: + raise errors.EncryptionDecryptionFailed( + 'Failed to encrypt/decrypt in %s: %s' % ( + fun.__name__, + stderr)) + + if verify is not None: + # A verify key has been passed + if result.valid is False or \ + verify.fingerprint != result.pubkey_fingerprint: + raise errors.InvalidSignature( + 'Failed to verify signature with key %s: %s' % + (verify.key_id, stderr)) + + if is_sign_function: + # Specific validation for sign function + privkey = gpg.list_keys(secret=True).pop() + rfprint = result.fingerprint + kfprint = privkey['fingerprint'] + if result.fingerprint is None: + raise errors.SignFailed( + 'Failed to sign with key %s: %s' % + (privkey['keyid'], stderr)) + leap_assert( + result.fingerprint == kfprint, + 'Signature and private key fingerprints mismatch: ' + '%s != %s' % + (rfprint, kfprint)) + + if is_verify_function: + # Specific validation for verify function + pubkey = gpg.list_keys().pop() + valid = result.valid + rfprint = result.fingerprint + kfprint = pubkey['fingerprint'] + if valid is False or rfprint != kfprint: + raise errors.InvalidSignature( + 'Failed to verify signature ' + 'with key %s.' % pubkey['keyid']) + result = result.valid + + # ok, enough checks. let's return data if available + if hasattr(result, 'data'): + result = result.data + return result + return wrapped + + +class TempGPGWrapper(object): + """ + A context manager returning a temporary GPG wrapper keyring, which + contains exactly zero or one pubkeys, and zero or one privkeys. + + Temporary unitary keyrings allow the to use GPG's facilities for exactly + one key. This function creates an empty temporary keyring and imports + C{keys} if it is not None. + """ + def __init__(self, keys=None): + """ + :param keys: OpenPGP key, or list of. + :type keys: OpenPGPKey or list of OpenPGPKeys + """ + self._gpg = None + if not keys: + keys = list() + if not isinstance(keys, list): + keys = [keys] + self._keys = keys + for key in filter(None, keys): + leap_assert_type(key, OpenPGPKey) + + def __enter__(self): + """ + Calls the unitary gpgwrapper initializer + + :return: A GPG wrapper with a unitary keyring. + :rtype: gnupg.GPG + """ + self._build_keyring() + return self._gpg + + def __exit__(self, exc_type, exc_value, traceback): + """ + Ensures the gpgwrapper is properly destroyed. + """ + # TODO handle exceptions and log here + self._destroy_keyring() + + def _build_keyring(self): + """ + Create an empty GPG keyring and import C{keys} into it. + + :param keys: List of keys to add to the keyring. + :type keys: list of OpenPGPKey + + :return: A GPG wrapper with a unitary keyring. + :rtype: gnupg.GPG + """ + privkeys = [key for key in self._keys if key and key.private is True] + publkeys = [key for key in self._keys if key and key.private is False] + # here we filter out public keys that have a correspondent + # private key in the list because the private key_data by + # itself is enough to also have the public key in the keyring, + # and we want to count the keys afterwards. + + privaddrs = map(lambda privkey: privkey.address, privkeys) + publkeys = filter( + lambda pubkey: pubkey.address not in privaddrs, publkeys) + + listkeys = lambda: self._gpg.list_keys() + listsecretkeys = lambda: self._gpg.list_keys(secret=True) + + self._gpg = GPGWrapper(gnupghome=tempfile.mkdtemp()) + leap_assert(len(listkeys()) is 0, 'Keyring not empty.') + + # import keys into the keyring: + # concatenating ascii-armored keys, which is correctly + # understood by the GPGWrapper. + + self._gpg.import_keys("".join( + [x.key_data for x in publkeys + privkeys])) + + # assert the number of keys in the keyring + leap_assert( + len(listkeys()) == len(publkeys) + len(privkeys), + 'Wrong number of public keys in keyring: %d, should be %d)' % + (len(listkeys()), len(publkeys) + len(privkeys))) + leap_assert( + len(listsecretkeys()) == len(privkeys), + 'Wrong number of private keys in keyring: %d, should be %d)' % + (len(listsecretkeys()), len(privkeys))) + + def _destroy_keyring(self): + """ + Securely erase a unitary keyring. + """ + # TODO: implement some kind of wiping of data or a more + # secure way that + # does not write to disk. + + try: + for secret in [True, False]: + for key in self._gpg.list_keys(secret=secret): + self._gpg.delete_keys( + key['fingerprint'], + secret=secret) + leap_assert(len(self._gpg.list_keys()) is 0, 'Keyring not empty!') + + except: + raise + + finally: + leap_assert(self._gpg.gnupghome != os.path.expanduser('~/.gnupg'), + "watch out! Tried to remove default gnupg home!") + shutil.rmtree(self._gpg.gnupghome) + + +# +# API functions +# + +@with_temporary_gpg +def encrypt_asym(data, key, passphrase=None, sign=None): + """ + Encrypt C{data} using public @{key} and sign with C{sign} key. + + :param data: The data to be encrypted. + :type data: str + :param pubkey: The key used to encrypt. + :type pubkey: OpenPGPKey + :param sign: The key used for signing. + :type sign: OpenPGPKey + + :return: The encrypted data. + :rtype: str + """ + leap_assert_type(key, OpenPGPKey) + leap_assert(key.private is False, 'Key is not public.') + if sign is not None: + leap_assert_type(sign, OpenPGPKey) + leap_assert(sign.private is True) + + # Here we cannot assert for correctness of sig because the sig is in + # the ciphertext. + # result.ok - (bool) indicates if the operation succeeded + # result.data - (bool) contains the result of the operation + + return lambda gpg: gpg.encrypt( + data, key.fingerprint, + sign=sign.key_id if sign else None, + passphrase=passphrase, symmetric=False) + + +@with_temporary_gpg +def decrypt_asym(data, key, passphrase=None, verify=None): + """ + Decrypt C{data} using private @{key} and verify with C{verify} key. + + :param data: The data to be decrypted. + :type data: str + :param privkey: The key used to decrypt. + :type privkey: OpenPGPKey + :param verify: The key used to verify a signature. + :type verify: OpenPGPKey + + :return: The decrypted data. + :rtype: str + + @raise InvalidSignature: Raised if unable to verify the signature with + C{verify} key. + """ + leap_assert(key.private is True, 'Key is not private.') + if verify is not None: + leap_assert_type(verify, OpenPGPKey) + leap_assert(verify.private is False) + + return lambda gpg: gpg.decrypt( + data, passphrase=passphrase) + + +@with_temporary_gpg +def is_encrypted(data): + """ + Return whether C{data} was encrypted using OpenPGP. + + :param data: The data we want to know about. + :type data: str + + :return: Whether C{data} was encrypted using this wrapper. + :rtype: bool + """ + return lambda gpg: gpg.is_encrypted(data) + + +@with_temporary_gpg +def is_encrypted_asym(data): + """ + Return whether C{data} was asymmetrically encrypted using OpenPGP. + + :param data: The data we want to know about. + :type data: str + + :return: Whether C{data} was encrypted using this wrapper. + :rtype: bool + """ + return lambda gpg: gpg.is_encrypted_asym(data) + + +@with_temporary_gpg +def sign(data, privkey): + """ + Sign C{data} with C{privkey}. + + :param data: The data to be signed. + :type data: str + + :param privkey: The private key to be used to sign. + :type privkey: OpenPGPKey + + :return: The ascii-armored signed data. + :rtype: str + """ + leap_assert_type(privkey, OpenPGPKey) + leap_assert(privkey.private is True) + + # result.fingerprint - contains the fingerprint of the key used to + # sign. + return lambda gpg: gpg.sign(data, keyid=privkey.key_id) + + +@with_temporary_gpg +def verify(data, key): + """ + Verify signed C{data} with C{pubkey}. + + :param data: The data to be verified. + :type data: str + + :param pubkey: The public key to be used on verification. + :type pubkey: OpenPGPKey + + :return: The ascii-armored signed data. + :rtype: str + """ + leap_assert_type(key, OpenPGPKey) + leap_assert(key.private is False) + + return lambda gpg: gpg.verify(data) + + +# +# Helper functions +# + + +def _build_key_from_gpg(address, key, key_data): + """ + Build an OpenPGPKey for C{address} based on C{key} from + local gpg storage. + + ASCII armored GPG key data has to be queried independently in this + wrapper, so we receive it in C{key_data}. + + :param address: The address bound to the key. + :type address: str + :param key: Key obtained from GPG storage. + :type key: dict + :param key_data: Key data obtained from GPG storage. + :type key_data: str + :return: An instance of the key. + :rtype: OpenPGPKey + """ + return OpenPGPKey( + address, + key_id=key['keyid'], + fingerprint=key['fingerprint'], + key_data=key_data, + private=True if key['type'] == 'sec' else False, + length=key['length'], + expiry_date=key['expires'], + validation=None, # TODO: verify for validation. + ) + + +# +# The OpenPGP wrapper +# + +class OpenPGPKey(EncryptionKey): + """ + Base class for OpenPGP keys. + """ + + +class OpenPGPScheme(EncryptionScheme): + """ + A wrapper for OpenPGP keys. + """ + + def __init__(self, soledad): + """ + Initialize the OpenPGP wrapper. + + :param soledad: A Soledad instance for key storage. + :type soledad: leap.soledad.Soledad + """ + EncryptionScheme.__init__(self, soledad) + + def gen_key(self, address): + """ + Generate an OpenPGP keypair bound to C{address}. + + :param address: The address bound to the key. + :type address: str + :return: The key bound to C{address}. + :rtype: OpenPGPKey + @raise KeyAlreadyExists: If key already exists in local database. + """ + # make sure the key does not already exist + leap_assert(is_address(address), 'Not an user address: %s' % address) + try: + self.get_key(address) + raise errors.KeyAlreadyExists(address) + except errors.KeyNotFound: + pass + + def _gen_key(gpg): + params = gpg.gen_key_input( + key_type='RSA', + key_length=4096, + name_real=address, + name_email=address, + name_comment='Generated by LEAP Key Manager.') + gpg.gen_key(params) + pubkeys = gpg.list_keys() + # assert for new key characteristics + leap_assert( + len(pubkeys) is 1, # a unitary keyring! + 'Keyring has wrong number of keys: %d.' % len(pubkeys)) + key = gpg.list_keys(secret=True).pop() + leap_assert( + len(key['uids']) is 1, # with just one uid! + 'Wrong number of uids for key: %d.' % len(key['uids'])) + leap_assert( + re.match('.*<%s>$' % address, key['uids'][0]) is not None, + 'Key not correctly bound to address.') + # insert both public and private keys in storage + for secret in [True, False]: + key = gpg.list_keys(secret=secret).pop() + openpgp_key = _build_key_from_gpg( + address, key, + gpg.export_keys(key['fingerprint'], secret=secret)) + self.put_key(openpgp_key) + + with temporary_gpgwrapper() as gpg: + # TODO: inspect result, or use decorator + _gen_key(gpg) + + return self.get_key(address, private=True) + + def get_key(self, address, private=False): + """ + Get key bound to C{address} from local storage. + + :param address: The address bound to the key. + :type address: str + :param private: Look for a private key instead of a public one? + :type private: bool + + :return: The key bound to C{address}. + :rtype: OpenPGPKey + @raise KeyNotFound: If the key was not found on local storage. + """ + leap_assert(is_address(address), 'Not an user address: %s' % address) + doc = self._get_key_doc(address, private) + if doc is None: + raise errors.KeyNotFound(address) + return build_key_from_dict(OpenPGPKey, address, doc.content) + + def put_ascii_key(self, key_data): + """ + Put key contained in ascii-armored C{key_data} in local storage. + + :param key_data: The key data to be stored. + :type key_data: str + """ + leap_assert_type(key_data, str) + # TODO: add more checks for correct key data. + leap_assert(key_data is not None, 'Data does not represent a key.') + + def _put_ascii_key(gpg): + gpg.import_keys(key_data) + privkey = None + pubkey = None + + try: + privkey = gpg.list_keys(secret=True).pop() + except IndexError: + pass + pubkey = gpg.list_keys(secret=False).pop() # unitary keyring + # extract adress from first uid on key + match = re.match('.*<([\w.-]+@[\w.-]+)>.*', pubkey['uids'].pop()) + leap_assert(match is not None, 'No user address in key data.') + address = match.group(1) + if privkey is not None: + match = re.match( + '.*<([\w.-]+@[\w.-]+)>.*', privkey['uids'].pop()) + leap_assert(match is not None, 'No user address in key data.') + privaddress = match.group(1) + leap_assert( + address == privaddress, + 'Addresses in pub and priv key differ.') + leap_assert( + pubkey['fingerprint'] == privkey['fingerprint'], + 'Fingerprints for pub and priv key differ.') + # insert private key in storage + openpgp_privkey = _build_key_from_gpg( + address, privkey, + gpg.export_keys(privkey['fingerprint'], secret=True)) + self.put_key(openpgp_privkey) + # insert public key in storage + openpgp_pubkey = _build_key_from_gpg( + address, pubkey, + gpg.export_keys(pubkey['fingerprint'], secret=False)) + self.put_key(openpgp_pubkey) + + with temporary_gpgwrapper() as gpg: + # TODO: inspect result, or use decorator + _put_ascii_key(gpg) + + def put_key(self, key): + """ + Put C{key} in local storage. + + :param key: The key to be stored. + :type key: OpenPGPKey + """ + doc = self._get_key_doc(key.address, private=key.private) + if doc is None: + self._soledad.create_doc_from_json(key.get_json()) + else: + doc.set_json(key.get_json()) + self._soledad.put_doc(doc) + + def _get_key_doc(self, address, private=False): + """ + Get the document with a key (public, by default) bound to C{address}. + + If C{private} is True, looks for a private key instead of a public. + + :param address: The address bound to the key. + :type address: str + :param private: Whether to look for a private key. + :type private: bool + :return: The document with the key or None if it does not exist. + :rtype: leap.soledad.document.SoledadDocument + """ + doclist = self._soledad.get_from_index( + TAGS_ADDRESS_PRIVATE_INDEX, + KEYMANAGER_KEY_TAG, + address, + '1' if private else '0') + if len(doclist) is 0: + return None + leap_assert( + len(doclist) is 1, + 'Found more than one %s key for address!' % + 'private' if private else 'public') + return doclist.pop() + + def delete_key(self, key): + """ + Remove C{key} from storage. + + :param key: The key to be removed. + :type key: EncryptionKey + """ + leap_assert(key.__class__ is OpenPGPKey, 'Wrong key type.') + stored_key = self.get_key(key.address, private=key.private) + if stored_key is None: + raise errors.KeyNotFound(key) + if stored_key.__dict__ != key.__dict__: + raise errors.KeyAttributesDiffer(key) + doc = self._get_key_doc(key.address, key.private) + self._soledad.delete_doc(doc) diff --git a/src/leap/keymanager/tests/__init__.py b/src/leap/keymanager/tests/__init__.py new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/src/leap/keymanager/tests/__init__.py diff --git a/src/leap/keymanager/tests/test_keymanager.py b/src/leap/keymanager/tests/test_keymanager.py new file mode 100644 index 0000000..09a6183 --- /dev/null +++ b/src/leap/keymanager/tests/test_keymanager.py @@ -0,0 +1,676 @@ +## -*- coding: utf-8 -*- +# test_keymanager.py +# Copyright (C) 2013 LEAP +# +# 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/>. + + +""" +Tests for the Key Manager. +""" + + +from mock import Mock +from leap.common.testing.basetest import BaseLeapTest +from leap.soledad import Soledad +from leap.keymanager import ( + KeyManager, + openpgp, + KeyNotFound, + NoPasswordGiven, + errors, +) +from leap.keymanager.openpgp import OpenPGPKey +from leap.keymanager.keys import ( + is_address, + build_key_from_dict, +) + + +ADDRESS = 'leap@leap.se' +ADDRESS_2 = 'anotheruser@leap.se' + + +class KeyManagerUtilTestCase(BaseLeapTest): + + def setUp(self): + pass + + def tearDown(self): + pass + + def test_is_address(self): + self.assertTrue( + is_address('user@leap.se'), + 'Incorrect address detection.') + self.assertFalse( + is_address('userleap.se'), + 'Incorrect address detection.') + self.assertFalse( + is_address('user@'), + 'Incorrect address detection.') + self.assertFalse( + is_address('@leap.se'), + 'Incorrect address detection.') + + def test_build_key_from_dict(self): + kdict = { + 'address': ADDRESS, + 'key_id': 'key_id', + 'fingerprint': 'fingerprint', + 'key_data': 'key_data', + 'private': 'private', + 'length': 'length', + 'expiry_date': 'expiry_date', + 'first_seen_at': 'first_seen_at', + 'last_audited_at': 'last_audited_at', + 'validation': 'validation', + } + key = build_key_from_dict(OpenPGPKey, ADDRESS, kdict) + self.assertEqual( + kdict['address'], key.address, + 'Wrong data in key.') + self.assertEqual( + kdict['key_id'], key.key_id, + 'Wrong data in key.') + self.assertEqual( + kdict['fingerprint'], key.fingerprint, + 'Wrong data in key.') + self.assertEqual( + kdict['key_data'], key.key_data, + 'Wrong data in key.') + self.assertEqual( + kdict['private'], key.private, + 'Wrong data in key.') + self.assertEqual( + kdict['length'], key.length, + 'Wrong data in key.') + self.assertEqual( + kdict['expiry_date'], key.expiry_date, + 'Wrong data in key.') + self.assertEqual( + kdict['first_seen_at'], key.first_seen_at, + 'Wrong data in key.') + self.assertEqual( + kdict['last_audited_at'], key.last_audited_at, + 'Wrong data in key.') + self.assertEqual( + kdict['validation'], key.validation, + 'Wrong data in key.') + + +class KeyManagerWithSoledadTestCase(BaseLeapTest): + + def setUp(self): + # mock key fetching and storing so Soledad doesn't fail when trying to + # reach the server. + Soledad._get_secrets_from_shared_db = Mock(return_value=None) + Soledad._put_secrets_in_shared_db = Mock(return_value=None) + + self._soledad = Soledad( + "leap@leap.se", + "123456", + secrets_path=self.tempdir + "/secret.gpg", + local_db_path=self.tempdir + "/soledad.u1db", + server_url='', + cert_file=None, + auth_token=None, + ) + + def tearDown(self): + km = self._key_manager() + for key in km.get_all_keys_in_local_db(): + km._wrapper_map[key.__class__].delete_key(key) + for key in km.get_all_keys_in_local_db(private=True): + km._wrapper_map[key.__class__].delete_key(key) + + def _key_manager(self, user=ADDRESS, url=''): + return KeyManager(user, url, self._soledad) + + +class OpenPGPCryptoTestCase(KeyManagerWithSoledadTestCase): + + def _test_openpgp_gen_key(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + self.assertRaises(KeyNotFound, pgp.get_key, 'user@leap.se') + key = pgp.gen_key('user@leap.se') + self.assertIsInstance(key, openpgp.OpenPGPKey) + self.assertEqual( + 'user@leap.se', key.address, 'Wrong address bound to key.') + self.assertEqual( + '4096', key.length, 'Wrong key length.') + + def test_openpgp_put_delete_key(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + self.assertRaises(KeyNotFound, pgp.get_key, ADDRESS) + pgp.put_ascii_key(PUBLIC_KEY) + key = pgp.get_key(ADDRESS, private=False) + pgp.delete_key(key) + self.assertRaises(KeyNotFound, pgp.get_key, ADDRESS) + + def test_openpgp_put_ascii_key(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + self.assertRaises(KeyNotFound, pgp.get_key, ADDRESS) + pgp.put_ascii_key(PUBLIC_KEY) + key = pgp.get_key(ADDRESS, private=False) + self.assertIsInstance(key, openpgp.OpenPGPKey) + self.assertEqual( + ADDRESS, key.address, 'Wrong address bound to key.') + self.assertEqual( + '4096', key.length, 'Wrong key length.') + pgp.delete_key(key) + self.assertRaises(KeyNotFound, pgp.get_key, ADDRESS) + + def test_get_public_key(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + self.assertRaises(KeyNotFound, pgp.get_key, ADDRESS) + pgp.put_ascii_key(PUBLIC_KEY) + self.assertRaises( + KeyNotFound, pgp.get_key, ADDRESS, private=True) + key = pgp.get_key(ADDRESS, private=False) + self.assertEqual(ADDRESS, key.address) + self.assertFalse(key.private) + self.assertEqual(KEY_FINGERPRINT, key.fingerprint) + pgp.delete_key(key) + self.assertRaises(KeyNotFound, pgp.get_key, ADDRESS) + + def test_openpgp_encrypt_decrypt_asym(self): + # encrypt + pgp = openpgp.OpenPGPScheme(self._soledad) + pgp.put_ascii_key(PUBLIC_KEY) + pubkey = pgp.get_key(ADDRESS, private=False) + cyphertext = openpgp.encrypt_asym('data', pubkey) + # assert + self.assertTrue(cyphertext is not None) + self.assertTrue(cyphertext != '') + self.assertTrue(cyphertext != 'data') + self.assertTrue(openpgp.is_encrypted_asym(cyphertext)) + self.assertTrue(openpgp.is_encrypted(cyphertext)) + # decrypt + self.assertRaises( + KeyNotFound, pgp.get_key, ADDRESS, private=True) + pgp.put_ascii_key(PRIVATE_KEY) + privkey = pgp.get_key(ADDRESS, private=True) + plaintext = openpgp.decrypt_asym(cyphertext, privkey) + pgp.delete_key(pubkey) + pgp.delete_key(privkey) + self.assertRaises( + KeyNotFound, pgp.get_key, ADDRESS, private=False) + self.assertRaises( + KeyNotFound, pgp.get_key, ADDRESS, private=True) + + def test_verify_with_private_raises(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + pgp.put_ascii_key(PRIVATE_KEY) + data = 'data' + privkey = pgp.get_key(ADDRESS, private=True) + signed = openpgp.sign(data, privkey) + self.assertRaises( + AssertionError, + openpgp.verify, signed, privkey) + + def test_sign_with_public_raises(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + pgp.put_ascii_key(PUBLIC_KEY) + data = 'data' + pubkey = pgp.get_key(ADDRESS, private=False) + self.assertRaises( + AssertionError, + openpgp.sign, data, pubkey) + + def test_verify_with_wrong_key_raises(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + pgp.put_ascii_key(PRIVATE_KEY) + data = 'data' + privkey = pgp.get_key(ADDRESS, private=True) + signed = openpgp.sign(data, privkey) + pgp.put_ascii_key(PUBLIC_KEY_2) + wrongkey = pgp.get_key(ADDRESS_2) + self.assertRaises( + errors.InvalidSignature, + openpgp.verify, signed, wrongkey) + + def test_encrypt_asym_sign_with_public_raises(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + pgp.put_ascii_key(PRIVATE_KEY) + data = 'data' + privkey = pgp.get_key(ADDRESS, private=True) + pubkey = pgp.get_key(ADDRESS, private=False) + self.assertRaises( + AssertionError, + openpgp.encrypt_asym, data, privkey, sign=pubkey) + + def test_decrypt_asym_verify_with_private_raises(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + pgp.put_ascii_key(PRIVATE_KEY) + data = 'data' + privkey = pgp.get_key(ADDRESS, private=True) + pubkey = pgp.get_key(ADDRESS, private=False) + encrypted_and_signed = openpgp.encrypt_asym( + data, pubkey, sign=privkey) + self.assertRaises( + AssertionError, + openpgp.decrypt_asym, + encrypted_and_signed, privkey, verify=privkey) + + def test_decrypt_asym_verify_with_wrong_key_raises(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + pgp.put_ascii_key(PRIVATE_KEY) + data = 'data' + privkey = pgp.get_key(ADDRESS, private=True) + pubkey = pgp.get_key(ADDRESS, private=False) + encrypted_and_signed = openpgp.encrypt_asym(data, pubkey, sign=privkey) + pgp.put_ascii_key(PUBLIC_KEY_2) + wrongkey = pgp.get_key(ADDRESS_2) + self.assertRaises( + errors.InvalidSignature, + openpgp.verify, encrypted_and_signed, wrongkey) + + def test_sign_verify(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + pgp.put_ascii_key(PRIVATE_KEY) + data = 'data' + privkey = pgp.get_key(ADDRESS, private=True) + signed = openpgp.sign(data, privkey) + pubkey = pgp.get_key(ADDRESS, private=False) + self.assertTrue(openpgp.verify(signed, pubkey)) + + def test_encrypt_asym_sign_decrypt_verify(self): + pgp = openpgp.OpenPGPScheme(self._soledad) + pgp.put_ascii_key(PRIVATE_KEY) + pubkey = pgp.get_key(ADDRESS, private=False) + privkey = pgp.get_key(ADDRESS, private=True) + pgp.put_ascii_key(PRIVATE_KEY_2) + pubkey2 = pgp.get_key(ADDRESS_2, private=False) + privkey2 = pgp.get_key(ADDRESS_2, private=True) + data = 'data' + encrypted_and_signed = openpgp.encrypt_asym( + data, pubkey2, sign=privkey) + res = openpgp.decrypt_asym( + encrypted_and_signed, privkey2, verify=pubkey) + self.assertTrue(data, res) + + +class KeyManagerKeyManagementTestCase(KeyManagerWithSoledadTestCase): + + def test_get_all_keys_in_db(self): + km = self._key_manager() + km._wrapper_map[OpenPGPKey].put_ascii_key(PRIVATE_KEY) + # get public keys + keys = km.get_all_keys_in_local_db(False) + self.assertEqual(len(keys), 1, 'Wrong number of keys') + self.assertEqual(ADDRESS, keys[0].address) + self.assertFalse(keys[0].private) + # get private keys + keys = km.get_all_keys_in_local_db(True) + self.assertEqual(len(keys), 1, 'Wrong number of keys') + self.assertEqual(ADDRESS, keys[0].address) + self.assertTrue(keys[0].private) + + def test_get_public_key(self): + km = self._key_manager() + km._wrapper_map[OpenPGPKey].put_ascii_key(PRIVATE_KEY) + # get the key + key = km.get_key(ADDRESS, OpenPGPKey, private=False, + fetch_remote=False) + self.assertTrue(key is not None) + self.assertEqual(key.address, ADDRESS) + self.assertEqual( + key.fingerprint.lower(), KEY_FINGERPRINT.lower()) + self.assertFalse(key.private) + + def test_get_private_key(self): + km = self._key_manager() + km._wrapper_map[OpenPGPKey].put_ascii_key(PRIVATE_KEY) + # get the key + key = km.get_key(ADDRESS, OpenPGPKey, private=True, + fetch_remote=False) + self.assertTrue(key is not None) + self.assertEqual(key.address, ADDRESS) + self.assertEqual( + key.fingerprint.lower(), KEY_FINGERPRINT.lower()) + self.assertTrue(key.private) + + def test_send_key_raises_key_not_found(self): + km = self._key_manager() + self.assertRaises( + KeyNotFound, + km.send_key, OpenPGPKey) + + def test_send_key(self): + """ + Test that request is well formed when sending keys to server. + """ + km = self._key_manager() + km._wrapper_map[OpenPGPKey].put_ascii_key(PUBLIC_KEY) + km._fetcher.put = Mock() + # the following data will be used on the send + km.ca_cert_path = 'capath' + km.session_id = 'sessionid' + km.uid = 'myuid' + km.api_uri = 'apiuri' + km.api_version = 'apiver' + km.send_key(OpenPGPKey) + # setup expected args + data = { + km.PUBKEY_KEY: km.get_key(km._address, OpenPGPKey).key_data, + } + url = '%s/%s/users/%s.json' % ('apiuri', 'apiver', 'myuid') + km._fetcher.put.assert_called_once_with( + url, data=data, verify='capath', + cookies={'_session_id': 'sessionid'}, + ) + + def test__fetch_keys_from_server(self): + """ + Test that the request is well formed when fetching keys from server. + """ + km = self._key_manager(url='http://nickserver.domain') + + class Response(object): + status_code = 200 + headers = {'content-type': 'application/json'} + + def json(self): + return {'address': ADDRESS_2, 'openpgp': PUBLIC_KEY_2} + + def raise_for_status(self): + pass + + # mock the fetcher so it returns the key for ADDRESS_2 + km._fetcher.get = Mock( + return_value=Response()) + km.ca_cert_path = 'cacertpath' + # do the fetch + km._fetch_keys_from_server(ADDRESS_2) + # and verify the call + km._fetcher.get.assert_called_once_with( + 'http://nickserver.domain', + data={'address': ADDRESS_2}, + verify='cacertpath', + ) + + def test_refresh_keys_does_not_refresh_own_key(self): + """ + Test that refreshing keys will not attempt to refresh our own key. + """ + km = self._key_manager() + # we add 2 keys but we expect it to only refresh the second one. + km._wrapper_map[OpenPGPKey].put_ascii_key(PUBLIC_KEY) + km._wrapper_map[OpenPGPKey].put_ascii_key(PUBLIC_KEY_2) + # mock the key fetching + km._fetch_keys_from_server = Mock(return_value=[]) + km.ca_cert_path = '' # some bogus path so the km does not complain. + # do the refreshing + km.refresh_keys() + km._fetch_keys_from_server.assert_called_once_with( + ADDRESS_2 + ) + + def test_get_key_fetches_from_server(self): + """ + Test that getting a key successfuly fetches from server. + """ + km = self._key_manager(url='http://nickserver.domain') + + class Response(object): + status_code = 200 + headers = {'content-type': 'application/json'} + + def json(self): + return {'address': ADDRESS_2, 'openpgp': PUBLIC_KEY_2} + + def raise_for_status(self): + pass + + # mock the fetcher so it returns the key for ADDRESS_2 + km._fetcher.get = Mock(return_value=Response()) + km.ca_cert_path = 'cacertpath' + # try to key get without fetching from server + self.assertRaises( + KeyNotFound, km.get_key, ADDRESS_2, OpenPGPKey, + fetch_remote=False + ) + # try to get key fetching from server. + key = km.get_key(ADDRESS_2, OpenPGPKey) + self.assertIsInstance(key, OpenPGPKey) + self.assertEqual(ADDRESS_2, key.address) + + +# Key material for testing + +# key 24D18DDF: public key "Leap Test Key <leap@leap.se>" +KEY_FINGERPRINT = "E36E738D69173C13D709E44F2F455E2824D18DDF" +PUBLIC_KEY = """ +-----BEGIN PGP PUBLIC KEY BLOCK----- +Version: GnuPG v1.4.10 (GNU/Linux) + +mQINBFC9+dkBEADNRfwV23TWEoGc/x0wWH1P7PlXt8MnC2Z1kKaKKmfnglVrpOiz +iLWoiU58sfZ0L5vHkzXHXCBf6Eiy/EtUIvdiWAn+yASJ1mk5jZTBKO/WMAHD8wTO +zpMsFmWyg3xc4DkmFa9KQ5EVU0o/nqPeyQxNMQN7px5pPwrJtJFmPxnxm+aDkPYx +irDmz/4DeDNqXliazGJKw7efqBdlwTHkl9Akw2gwy178pmsKwHHEMOBOFFvX61AT +huKqHYmlCGSliwbrJppTG7jc1/ls3itrK+CWTg4txREkSpEVmfcASvw/ZqLbjgfs +d/INMwXnR9U81O8+7LT6yw/ca4ppcFoJD7/XJbkRiML6+bJ4Dakiy6i727BzV17g +wI1zqNvm5rAhtALKfACha6YO43aJzairO4II1wxVHvRDHZn2IuKDDephQ3Ii7/vb +hUOf6XCSmchkAcpKXUOvbxm1yfB1LRa64mMc2RcZxf4mW7KQkulBsdV5QG2276lv +U2UUy2IutXcGP5nXC+f6sJJGJeEToKJ57yiO/VWJFjKN8SvP+7AYsQSqINUuEf6H +T5gCPCraGMkTUTPXrREvu7NOohU78q6zZNaL3GW8ai7eSeANSuQ8Vzffx7Wd8Y7i +Pw9sYj0SMFs1UgjbuL6pO5ueHh+qyumbtAq2K0Bci0kqOcU4E9fNtdiovQARAQAB +tBxMZWFwIFRlc3QgS2V5IDxsZWFwQGxlYXAuc2U+iQI3BBMBCAAhBQJQvfnZAhsD +BQsJCAcDBRUKCQgLBRYCAwEAAh4BAheAAAoJEC9FXigk0Y3fT7EQAKH3IuRniOpb +T/DDIgwwjz3oxB/W0DDMyPXowlhSOuM0rgGfntBpBb3boezEXwL86NPQxNGGruF5 +hkmecSiuPSvOmQlqlS95NGQp6hNG0YaKColh+Q5NTspFXCAkFch9oqUje0LdxfSP +QfV9UpeEvGyPmk1I9EJV/YDmZ4+Djge1d7qhVZInz4Rx1NrSyF/Tc2EC0VpjQFsU +Y9Kb2YBBR7ivG6DBc8ty0jJXi7B4WjkFcUEJviQpMF2dCLdonCehYs1PqsN1N7j+ +eFjQd+hqVMJgYuSGKjvuAEfClM6MQw7+FmFwMyLgK/Ew/DttHEDCri77SPSkOGSI +txCzhTg6798f6mJr7WcXmHX1w1Vcib5FfZ8vTDFVhz/XgAgArdhPo9V6/1dgSSiB +KPQ/spsco6u5imdOhckERE0lnAYvVT6KE81TKuhF/b23u7x+Wdew6kK0EQhYA7wy +7LmlaNXc7rMBQJ9Z60CJ4JDtatBWZ0kNrt2VfdDHVdqBTOpl0CraNUjWE5YMDasr +K2dF5IX8D3uuYtpZnxqg0KzyLg0tzL0tvOL1C2iudgZUISZNPKbS0z0v+afuAAnx +2pTC3uezbh2Jt8SWTLhll4i0P4Ps5kZ6HQUO56O+/Z1cWovX+mQekYFmERySDR9n +3k1uAwLilJmRmepGmvYbB8HloV8HqwgguQINBFC9+dkBEAC0I/xn1uborMgDvBtf +H0sEhwnXBC849/32zic6udB6/3Efk9nzbSpL3FSOuXITZsZgCHPkKarnoQ2ztMcS +sh1ke1C5gQGms75UVmM/nS+2YI4vY8OX/GC/on2vUyncqdH+bR6xH5hx4NbWpfTs +iQHmz5C6zzS/kuabGdZyKRaZHt23WQ7JX/4zpjqbC99DjHcP9BSk7tJ8wI4bkMYD +uFVQdT9O6HwyKGYwUU4sAQRAj7XCTGvVbT0dpgJwH4RmrEtJoHAx4Whg8mJ710E0 +GCmzf2jqkNuOw76ivgk27Kge+Hw00jmJjQhHY0yVbiaoJwcRrPKzaSjEVNgrpgP3 +lXPRGQArgESsIOTeVVHQ8fhK2YtTeCY9rIiO+L0OX2xo9HK7hfHZZWL6rqymXdyS +fhzh/f6IPyHFWnvj7Brl7DR8heMikygcJqv+ed2yx7iLyCUJ10g12I48+aEj1aLe +dP7lna32iY8/Z0SHQLNH6PXO9SlPcq2aFUgKqE75A/0FMk7CunzU1OWr2ZtTLNO1 +WT/13LfOhhuEq9jTyTosn0WxBjJKq18lnhzCXlaw6EAtbA7CUwsD3CTPR56aAXFK +3I7KXOVAqggrvMe5Tpdg5drfYpI8hZovL5aAgb+7Y5ta10TcJdUhS5K3kFAWe/td +U0cmWUMDP1UMSQ5Jg6JIQVWhSwARAQABiQIfBBgBCAAJBQJQvfnZAhsMAAoJEC9F +Xigk0Y3fRwsP/i0ElYCyxeLpWJTwo1iCLkMKz2yX1lFVa9nT1BVTPOQwr/IAc5OX +NdtbJ14fUsKL5pWgW8OmrXtwZm1y4euI1RPWWubG01ouzwnGzv26UcuHeqC5orZj +cOnKtL40y8VGMm8LoicVkRJH8blPORCnaLjdOtmA3rx/v2EXrJpSa3AhOy0ZSRXk +ZSrK68AVNwamHRoBSYyo0AtaXnkPX4+tmO8X8BPfj125IljubvwZPIW9VWR9UqCE +VPfDR1XKegVb6VStIywF7kmrknM1C5qUY28rdZYWgKorw01hBGV4jTW0cqde3N51 +XT1jnIAa+NoXUM9uQoGYMiwrL7vNsLlyyiW5ayDyV92H/rIuiqhFgbJsHTlsm7I8 +oGheR784BagAA1NIKD1qEO9T6Kz9lzlDaeWS5AUKeXrb7ZJLI1TTCIZx5/DxjLqM +Tt/RFBpVo9geZQrvLUqLAMwdaUvDXC2c6DaCPXTh65oCZj/hqzlJHH+RoTWWzKI+ +BjXxgUWF9EmZUBrg68DSmI+9wuDFsjZ51BcqvJwxyfxtTaWhdoYqH/UQS+D1FP3/ +diZHHlzwVwPICzM9ooNTgbrcDzyxRkIVqsVwBq7EtzcvgYUyX53yG25Giy6YQaQ2 +ZtQ/VymwFL3XdUWV6B/hU4PVAFvO3qlOtdJ6TpE+nEWgcWjCv5g7RjXX +=MuOY +-----END PGP PUBLIC KEY BLOCK----- +""" +PRIVATE_KEY = """ +-----BEGIN PGP PRIVATE KEY BLOCK----- +Version: GnuPG v1.4.10 (GNU/Linux) + +lQcYBFC9+dkBEADNRfwV23TWEoGc/x0wWH1P7PlXt8MnC2Z1kKaKKmfnglVrpOiz +iLWoiU58sfZ0L5vHkzXHXCBf6Eiy/EtUIvdiWAn+yASJ1mk5jZTBKO/WMAHD8wTO +zpMsFmWyg3xc4DkmFa9KQ5EVU0o/nqPeyQxNMQN7px5pPwrJtJFmPxnxm+aDkPYx +irDmz/4DeDNqXliazGJKw7efqBdlwTHkl9Akw2gwy178pmsKwHHEMOBOFFvX61AT +huKqHYmlCGSliwbrJppTG7jc1/ls3itrK+CWTg4txREkSpEVmfcASvw/ZqLbjgfs +d/INMwXnR9U81O8+7LT6yw/ca4ppcFoJD7/XJbkRiML6+bJ4Dakiy6i727BzV17g +wI1zqNvm5rAhtALKfACha6YO43aJzairO4II1wxVHvRDHZn2IuKDDephQ3Ii7/vb +hUOf6XCSmchkAcpKXUOvbxm1yfB1LRa64mMc2RcZxf4mW7KQkulBsdV5QG2276lv +U2UUy2IutXcGP5nXC+f6sJJGJeEToKJ57yiO/VWJFjKN8SvP+7AYsQSqINUuEf6H +T5gCPCraGMkTUTPXrREvu7NOohU78q6zZNaL3GW8ai7eSeANSuQ8Vzffx7Wd8Y7i +Pw9sYj0SMFs1UgjbuL6pO5ueHh+qyumbtAq2K0Bci0kqOcU4E9fNtdiovQARAQAB +AA/+JHtlL39G1wsH9R6UEfUQJGXR9MiIiwZoKcnRB2o8+DS+OLjg0JOh8XehtuCs +E/8oGQKtQqa5bEIstX7IZoYmYFiUQi9LOzIblmp2vxOm+HKkxa4JszWci2/ZmC3t +KtaA4adl9XVnshoQ7pijuCMUKB3naBEOAxd8s9d/JeReGIYkJErdrnVfNk5N71Ds +FmH5Ll3XtEDvgBUQP3nkA6QFjpsaB94FHjL3gDwum/cxzj6pCglcvHOzEhfY0Ddb +J967FozQTaf2JW3O+w3LOqtcKWpq87B7+O61tVidQPSSuzPjCtFF0D2LC9R/Hpky +KTMQ6CaKja4MPhjwywd4QPcHGYSqjMpflvJqi+kYIt8psUK/YswWjnr3r4fbuqVY +VhtiHvnBHQjz135lUqWvEz4hM3Xpnxydx7aRlv5NlevK8+YIO5oFbWbGNTWsPZI5 +jpoFBpSsnR1Q5tnvtNHauvoWV+XN2qAOBTG+/nEbDYH6Ak3aaE9jrpTdYh0CotYF +q7csANsDy3JvkAzeU6WnYpsHHaAjqOGyiZGsLej1UcXPFMosE/aUo4WQhiS8Zx2c 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+4pSZkZnqRpr2GwfB5aFfB6sIIJ0HGARQvfnZARAAtCP8Z9bm6KzIA7wbXx9LBIcJ +1wQvOPf99s4nOrnQev9xH5PZ820qS9xUjrlyE2bGYAhz5Cmq56ENs7THErIdZHtQ +uYEBprO+VFZjP50vtmCOL2PDl/xgv6J9r1Mp3KnR/m0esR+YceDW1qX07IkB5s+Q +us80v5LmmxnWcikWmR7dt1kOyV/+M6Y6mwvfQ4x3D/QUpO7SfMCOG5DGA7hVUHU/ +Tuh8MihmMFFOLAEEQI+1wkxr1W09HaYCcB+EZqxLSaBwMeFoYPJie9dBNBgps39o +6pDbjsO+or4JNuyoHvh8NNI5iY0IR2NMlW4mqCcHEazys2koxFTYK6YD95Vz0RkA +K4BErCDk3lVR0PH4StmLU3gmPayIjvi9Dl9saPRyu4Xx2WVi+q6spl3ckn4c4f3+ +iD8hxVp74+wa5ew0fIXjIpMoHCar/nndsse4i8glCddINdiOPPmhI9Wi3nT+5Z2t +9omPP2dEh0CzR+j1zvUpT3KtmhVICqhO+QP9BTJOwrp81NTlq9mbUyzTtVk/9dy3 +zoYbhKvY08k6LJ9FsQYySqtfJZ4cwl5WsOhALWwOwlMLA9wkz0eemgFxStyOylzl +QKoIK7zHuU6XYOXa32KSPIWaLy+WgIG/u2ObWtdE3CXVIUuSt5BQFnv7XVNHJllD +Az9VDEkOSYOiSEFVoUsAEQEAAQAP/1AagnZQZyzHDEgw4QELAspYHCWLXE5aZInX +wTUJhK31IgIXNn9bJ0hFiSpQR2xeMs9oYtRuPOu0P8oOFMn4/z374fkjZy8QVY3e +PlL+3EUeqYtkMwlGNmVw5a/NbNuNfm5Darb7pEfbYd1gPcni4MAYw7R2SG/57GbC +9gucvspHIfOSfBNLBthDzmK8xEKe1yD2eimfc2T7IRYb6hmkYfeds5GsqvGI6mwI +85h4uUHWRc5JOlhVM6yX8hSWx0L60Z3DZLChmc8maWnFXd7C8eQ6P1azJJbW71Ih +7CoK0XW4LE82vlQurSRFgTwfl7wFYszW2bOzCuhHDDtYnwH86Nsu0DC78ZVRnvxn +E8Ke/AJgrdhIOo4UAyR+aZD2+2mKd7/waOUTUrUtTzc7i8N3YXGi/EIaNReBXaq+ +ZNOp24BlFzRp+FCF/pptDW9HjPdiV09x0DgICmeZS4Gq/4vFFIahWctg52NGebT0 +Idxngjj+xDtLaZlLQoOz0n5ByjO/Wi0ANmMv1sMKCHhGvdaSws2/PbMR2r4caj8m +KXpIgdinM/wUzHJ5pZyF2U/qejsRj8Kw8KH/tfX4JCLhiaP/mgeTuWGDHeZQERAT +xPmRFHaLP9/ZhvGNh6okIYtrKjWTLGoXvKLHcrKNisBLSq+P2WeFrlme1vjvJMo/ +jPwLT5o9CADQmcbKZ+QQ1ZM9v99iDZol7SAMZX43JC019sx6GK0u6xouJBcLfeB4 +OXacTgmSYdTa9RM9fbfVpti01tJ84LV2SyL/VJq/enJF4XQPSynT/tFTn1PAor6o +tEAAd8fjKdJ6LnD5wb92SPHfQfXqI84rFEO8rUNIE/1ErT6DYifDzVCbfD2KZdoF +cOSp7TpD77sY1bs74ocBX5ejKtd+aH99D78bJSMM4pSDZsIEwnomkBHTziubPwJb +OwnATy0LmSMAWOw5rKbsh5nfwCiUTM20xp0t5JeXd+wPVWbpWqI2EnkCEN+RJr9i +7dp/ymDQ+Yt5wrsN3NwoyiexPOG91WQVCADdErHsnglVZZq9Z8Wx7KwecGCUurJ2 +H6lKudv5YOxPnAzqZS5HbpZd/nRTMZh2rdXCr5m2YOuewyYjvM757AkmUpM09zJX +MQ1S67/UX2y8/74TcRF97Ncx9HeELs92innBRXoFitnNguvcO6Esx4BTe1OdU6qR +ER3zAmVf22Le9ciXbu24DN4mleOH+OmBx7X2PqJSYW9GAMTsRB081R6EWKH7romQ +waxFrZ4DJzZ9ltyosEJn5F32StyLrFxpcrdLUoEaclZCv2qka7sZvi0EvovDVEBU +e10jOx9AOwf8Gj2ufhquQ6qgVYCzbP+YrodtkFrXRS3IsljIchj1M2ffB/0bfoUs +rtER9pLvYzCjBPg8IfGLw0o754Qbhh/ReplCRTusP/fQMybvCvfxreS3oyEriu/G +GufRomjewZ8EMHDIgUsLcYo2UHZsfF7tcazgxMGmMvazp4r8vpgrvW/8fIN/6Adu +tF+WjWDTvJLFJCe6O+BFJOWrssNrrra1zGtLC1s8s+Wfpe+bGPL5zpHeebGTwH1U +22eqgJArlEKxrfarz7W5+uHZJHSjF/K9ZvunLGD0n9GOPMpji3UO3zeM8IYoWn7E +/EWK1XbjnssNemeeTZ+sDh+qrD7BOi+vCX1IyBxbfqnQfJZvmcPWpruy1UsO+aIC +0GY8Jr3OL69dDQ21jueJAh8EGAEIAAkFAlC9+dkCGwwACgkQL0VeKCTRjd9HCw/+ +LQSVgLLF4ulYlPCjWIIuQwrPbJfWUVVr2dPUFVM85DCv8gBzk5c121snXh9Swovm +laBbw6ate3BmbXLh64jVE9Za5sbTWi7PCcbO/bpRy4d6oLmitmNw6cq0vjTLxUYy +bwuiJxWREkfxuU85EKdouN062YDevH+/YResmlJrcCE7LRlJFeRlKsrrwBU3BqYd +GgFJjKjQC1peeQ9fj62Y7xfwE9+PXbkiWO5u/Bk8hb1VZH1SoIRU98NHVcp6BVvp +VK0jLAXuSauSczULmpRjbyt1lhaAqivDTWEEZXiNNbRyp17c3nVdPWOcgBr42hdQ +z25CgZgyLCsvu82wuXLKJblrIPJX3Yf+si6KqEWBsmwdOWybsjygaF5HvzgFqAAD +U0goPWoQ71PorP2XOUNp5ZLkBQp5etvtkksjVNMIhnHn8PGMuoxO39EUGlWj2B5l +Cu8tSosAzB1pS8NcLZzoNoI9dOHrmgJmP+GrOUkcf5GhNZbMoj4GNfGBRYX0SZlQ +GuDrwNKYj73C4MWyNnnUFyq8nDHJ/G1NpaF2hiof9RBL4PUU/f92JkceXPBXA8gL +Mz2ig1OButwPPLFGQhWqxXAGrsS3Ny+BhTJfnfIbbkaLLphBpDZm1D9XKbAUvdd1 +RZXoH+FTg9UAW87eqU610npOkT6cRaBxaMK/mDtGNdc= +=JTFu +-----END PGP PRIVATE KEY BLOCK----- +""" + +# key 7FEE575A: public key "anotheruser <anotheruser@leap.se>" +PUBLIC_KEY_2 = """ +-----BEGIN PGP PUBLIC KEY BLOCK----- +Version: GnuPG v1.4.10 (GNU/Linux) + +mI0EUYwJXgEEAMbTKHuPJ5/Gk34l9Z06f+0WCXTDXdte1UBoDtZ1erAbudgC4MOR +gquKqoj3Hhw0/ILqJ88GcOJmKK/bEoIAuKaqlzDF7UAYpOsPZZYmtRfPC2pTCnXq +Z1vdeqLwTbUspqXflkCkFtfhGKMq5rH8GV5a3tXZkRWZhdNwhVXZagC3ABEBAAG0 +IWFub3RoZXJ1c2VyIDxhbm90aGVydXNlckBsZWFwLnNlPoi4BBMBAgAiBQJRjAle +AhsDBgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAAKCRB/nfpof+5XWotuA/4tLN4E +gUr7IfLy2HkHAxzw7A4rqfMN92DIM9mZrDGaWRrOn3aVF7VU1UG7MDkHfPvp/cFw +ezoCw4s4IoHVc/pVlOkcHSyt4/Rfh248tYEJmFCJXGHpkK83VIKYJAithNccJ6Q4 +JE/o06Mtf4uh/cA1HUL4a4ceqUhtpLJULLeKo7iNBFGMCV4BBADsyQI7GR0wSAxz +VayLjuPzgT+bjbFeymIhjuxKIEwnIKwYkovztW+4bbOcQs785k3Lp6RzvigTpQQt +Z/hwcLOqZbZw8t/24+D+Pq9mMP2uUvCFFqLlVvA6D3vKSQ/XNN+YB919WQ04jh63 +yuRe94WenT1RJd6xU1aaUff4rKizuQARAQABiJ8EGAECAAkFAlGMCV4CGwwACgkQ +f536aH/uV1rPZQQAqCzRysOlu8ez7PuiBD4SebgRqWlxa1TF1ujzfLmuPivROZ2X +Kw5aQstxgGSjoB7tac49s0huh4X8XK+BtJBfU84JS8Jc2satlfwoyZ35LH6sDZck +I+RS/3we6zpMfHs3vvp9xgca6ZupQxivGtxlJs294TpJorx+mFFqbV17AzQ= +=Thdu +-----END PGP PUBLIC KEY BLOCK----- +""" + +PRIVATE_KEY_2 = """ +-----BEGIN PGP PRIVATE KEY BLOCK----- +Version: GnuPG v1.4.10 (GNU/Linux) + +lQHYBFGMCV4BBADG0yh7jyefxpN+JfWdOn/tFgl0w13bXtVAaA7WdXqwG7nYAuDD +kYKriqqI9x4cNPyC6ifPBnDiZiiv2xKCALimqpcwxe1AGKTrD2WWJrUXzwtqUwp1 +6mdb3Xqi8E21LKal35ZApBbX4RijKuax/BleWt7V2ZEVmYXTcIVV2WoAtwARAQAB +AAP7BLuSAx7tOohnimEs74ks8l/L6dOcsFQZj2bqs4AoY3jFe7bV0tHr4llypb/8 +H3/DYvpf6DWnCjyUS1tTnXSW8JXtx01BUKaAufSmMNg9blKV6GGHlT/Whe9uVyks +7XHk/+9mebVMNJ/kNlqq2k+uWqJohzC8WWLRK+d1tBeqDsECANZmzltPaqUsGV5X +C3zszE3tUBgptV/mKnBtopKi+VH+t7K6fudGcG+bAcZDUoH/QVde52mIIjjIdLje +uajJuHUCAO1mqh+vPoGv4eBLV7iBo3XrunyGXiys4a39eomhxTy3YktQanjjx+ty +GltAGCs5PbWGO6/IRjjvd46wh53kzvsCAO0J97gsWhzLuFnkxFAJSPk7RRlyl7lI +1XS/x0Og6j9XHCyY1OYkfBm0to3UlCfkgirzCYlTYObCofzdKFIPDmSqHbQhYW5v +dGhlcnVzZXIgPGFub3RoZXJ1c2VyQGxlYXAuc2U+iLgEEwECACIFAlGMCV4CGwMG +CwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEH+d+mh/7ldai24D/i0s3gSBSvsh +8vLYeQcDHPDsDiup8w33YMgz2ZmsMZpZGs6fdpUXtVTVQbswOQd8++n9wXB7OgLD +izgigdVz+lWU6RwdLK3j9F+Hbjy1gQmYUIlcYemQrzdUgpgkCK2E1xwnpDgkT+jT +oy1/i6H9wDUdQvhrhx6pSG2kslQst4qjnQHYBFGMCV4BBADsyQI7GR0wSAxzVayL +juPzgT+bjbFeymIhjuxKIEwnIKwYkovztW+4bbOcQs785k3Lp6RzvigTpQQtZ/hw +cLOqZbZw8t/24+D+Pq9mMP2uUvCFFqLlVvA6D3vKSQ/XNN+YB919WQ04jh63yuRe +94WenT1RJd6xU1aaUff4rKizuQARAQABAAP9EyElqJ3dq3EErXwwT4mMnbd1SrVC +rUJrNWQZL59mm5oigS00uIyR0SvusOr+UzTtd8ysRuwHy5d/LAZsbjQStaOMBILx +77TJveOel0a1QK0YSMF2ywZMCKvquvjli4hAtWYz/EwfuzQN3t23jc5ny+GqmqD2 +3FUxLJosFUfLNmECAO9KhVmJi+L9dswIs+2Dkjd1eiRQzNOEVffvYkGYZyKxNiXF +UA5kvyZcB4iAN9sWCybE4WHZ9jd4myGB0MPDGxkCAP1RsXJbbuD6zS7BXe5gwunO +2q4q7ptdSl/sJYQuTe1KNP5d/uGsvlcFfsYjpsopasPjFBIncc/2QThMKlhoEaEB +/0mVAxpT6SrEvUbJ18z7kna24SgMPr3OnPMxPGfvNLJY/Xv/A17YfoqjmByCvsKE +JCDjopXtmbcrZyoEZbEht9mko4ifBBgBAgAJBQJRjAleAhsMAAoJEH+d+mh/7lda +z2UEAKgs0crDpbvHs+z7ogQ+Enm4EalpcWtUxdbo83y5rj4r0TmdlysOWkLLcYBk +o6Ae7WnOPbNIboeF/FyvgbSQX1POCUvCXNrGrZX8KMmd+Sx+rA2XJCPkUv98Hus6 +THx7N776fcYHGumbqUMYrxrcZSbNveE6SaK8fphRam1dewM0 +=a5gs +-----END PGP PRIVATE KEY BLOCK----- +""" +import unittest +if __name__ == "__main__": + unittest.main() |