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- # Copyright 2013 Donald Stufft and individual contributors
- #
- # Licensed under the Apache License, Version 2.0 (the "License");
- # you may not use this file except in compliance with the License.
- # You may obtain a copy of the License at
- #
- # http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
-
- from __future__ import absolute_import, division, print_function
-
- import six
-
- import nacl.bindings
-
-
- class EncryptedMessage(six.binary_type):
- """
- A bytes subclass that holds a messaged that has been encrypted by a
- :class:`SecretBox`.
- """
-
- @classmethod
- def _from_parts(cls, nonce, ciphertext, combined):
- obj = cls(combined)
- obj._nonce = nonce
- obj._ciphertext = ciphertext
- return obj
-
- @property
- def nonce(self):
- """
- The nonce used during the encryption of the :class:`EncryptedMessage`.
- """
- return self._nonce
-
- @property
- def ciphertext(self):
- """
- The ciphertext contained within the :class:`EncryptedMessage`.
- """
- return self._ciphertext
-
-
- class StringFixer(object):
-
- def __str__(self):
- if six.PY3:
- return str(self.__bytes__())
- else:
- return self.__bytes__()
-
-
- def bytes_as_string(bytes_in):
- if six.PY3:
- return bytes_in.decode('ascii')
- else:
- return bytes_in
-
-
- def random(size=32):
- return nacl.bindings.randombytes(size)
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