0.2.0 pre-release commit

Renamed NoiseBuilder to NoiseConnection
Bumped Cryptography from 2.1.1 to 2.1.2
Ready to release

Closes #5

CHANGELOG.rst

@@ -3,14 +3,13 @@ Changelog
 
 .. _v0-2-0:
 
-0.2.0 - `trunk`
-~~~~~~~~~~~~~~~~
-
-.. note:: This version is not yet released and is under active development.
+0.2.0 - 2017-11-01
+~~~~~~~~~~~~~~~~~~
 
 * Compatible with revision 33 (doesn't break compatibility with revision 32).
-* Cryptography requirement updated to the newest version (2.1.1) - **Python 3.5** is supported again.
-* Adding sphinx documentation for Read the Docs publication.
+* Cryptography requirement updated to the newest version (2.1.2) - **Python 3.5** is supported again.
+* Adding sphinx documentation for Read the Docs publication and README update
+* Renamed NoiseBuilder to NoiseConnection
 * Minor fixes for better performance.
 
 

README.md

@@ -27,20 +27,20 @@ pip install noiseprotocol
 ## Usage
 
 #### Basic usage
-NoiseBuilder class provides highest level of abstraction for the package. You can access full functionality of the package
-through this class' interfaces. An example for setting up NoiseBuilder could look like this:
+NoiseConnection class provides highest level of abstraction for the package. You can access full functionality of the package
+through this class' interfaces. An example for setting up NoiseConnection could look like this:
 
 ```python
 import socket
 
-from noise.builder import NoiseBuilder
+from noise.connection import NoiseConnection
 
 sock = socket.socket()
 sock.connect(('localhost', 2000))
 
-# Create instance of NoiseBuilder, set up to use NN handshake pattern, Curve25519 for 
+# Create instance of NoiseConnection, set up to use NN handshake pattern, Curve25519 for
 # elliptic curve keypair, ChaCha20Poly1305 as cipher function and SHA256 for hashing.  
-proto = NoiseBuilder.from_name(b'Noise_NN_25519_ChaChaPoly_SHA256')
+proto = NoiseConnection.from_name(b'Noise_NN_25519_ChaChaPoly_SHA256')
 
 # Set role in this connection as initiator
 proto.set_as_initiator()
@@ -60,7 +60,7 @@ payload = proto.read_message(received)
 
 # As of now, the handshake should be finished (as we are using NN pattern). 
 # Any further calls to write_message or read_message would raise NoiseHandshakeError exception.
-# We can use encrypt/decrypt methods of NoiseBuilder now for encryption and decryption of messages.
+# We can use encrypt/decrypt methods of NoiseConnection now for encryption and decryption of messages.
 encrypted_message = proto.encrypt(b'This is an example payload')
 sock.sendall(encrypted_message)
 
@@ -75,7 +75,7 @@ The example above covers the connection from the initiator's ("client") point of
 import socket
 from itertools import cycle
 
-from noise.builder import NoiseBuilder
+from noise.connection import NoiseConnection
 
 if __name__ == '__main__':
     s = socket.socket()
@@ -86,7 +86,7 @@ if __name__ == '__main__':
     conn, addr = s.accept()
     print('Accepted connection from', addr)
 
-    noise = NoiseBuilder.from_name(b'Noise_NN_25519_ChaChaPoly_SHA256')
+    noise = NoiseConnection.from_name(b'Noise_NN_25519_ChaChaPoly_SHA256')
     noise.set_as_responder()
     noise.start_handshake()
 
@@ -134,6 +134,7 @@ pytest
 
 ### Todo-list for the project:
 
+- [ ] custom crypto backends
 - [ ] fallback patterns support
 - [ ] scripts for keypair generation (+ console entry points)
 - [ ] "echo" (noise-c like) example

examples/wireguard/main.py

@@ -6,7 +6,7 @@ import struct
 
 from scapy.layers.inet import IP, ICMP
 
-from noise.builder import NoiseBuilder, Keypair
+from noise.connection import NoiseConnection, Keypair
 
 
 address = ('demo.wireguard.com', 12913)
@@ -16,7 +16,7 @@ their_public = base64.b64decode('qRCwZSKInrMAq5sepfCdaCsRJaoLe5jhtzfiw7CjbwM=')
 preshared = base64.b64decode('FpCyhws9cxwWoV4xELtfJvjJN+zQVRPISllRWgeopVE=')
 prologue = b'WireGuard v1 zx2c4 Jason@zx2c4.com'
 
-noise = NoiseBuilder.from_name(b'Noise_IKpsk2_25519_ChaChaPoly_BLAKE2s')
+noise = NoiseConnection.from_name(b'Noise_IKpsk2_25519_ChaChaPoly_BLAKE2s')
 noise.set_as_initiator()
 noise.set_keypair_from_private_bytes(Keypair.STATIC, our_private)
 noise.set_keypair_from_public_bytes(Keypair.REMOTE_STATIC, their_public)

noise/__init__.py

@@ -1 +1 @@
-__all__ = ['builder']
+__all__ = ['connection']

noise/connection.py

@@ -19,7 +19,7 @@ _keypairs = {Keypair.STATIC: 's', Keypair.REMOTE_STATIC: 'rs',
              Keypair.EPHEMERAL: 'e', Keypair.REMOTE_EPHEMERAL: 're'}
 
 
-class NoiseBuilder(object):
+class NoiseConnection(object):
     def __init__(self):
         self.noise_protocol = None
         self.protocol_name = None
@@ -97,11 +97,11 @@ class NoiseBuilder(object):
 
     def write_message(self, payload: bytes=b'') -> bytearray:
         if not self._handshake_started:
-            raise NoiseHandshakeError('Call NoiseBuilder.start_handshake first')
+            raise NoiseHandshakeError('Call NoiseConnection.start_handshake first')
         if self._next_fn != self.write_message:
-            raise NoiseHandshakeError('NoiseBuilder.read_message has to be called now')
+            raise NoiseHandshakeError('NoiseConnection.read_message has to be called now')
         if self.handshake_finished:
-            raise NoiseHandshakeError('Handshake finished. NoiseBuilder.encrypt should be used now')
+            raise NoiseHandshakeError('Handshake finished. NoiseConnection.encrypt should be used now')
         self._next_fn = self.read_message
 
         buffer = bytearray()
@@ -112,11 +112,11 @@ class NoiseBuilder(object):
 
     def read_message(self, data: bytes) -> bytearray:
         if not self._handshake_started:
-            raise NoiseHandshakeError('Call NoiseBuilder.start_handshake first')
+            raise NoiseHandshakeError('Call NoiseConnection.start_handshake first')
         if self._next_fn != self.read_message:
-            raise NoiseHandshakeError('NoiseBuilder.write_message has to be called now')
+            raise NoiseHandshakeError('NoiseConnection.write_message has to be called now')
         if self.handshake_finished:
-            raise NoiseHandshakeError('Handshake finished. NoiseBuilder.decrypt should be used now')
+            raise NoiseHandshakeError('Handshake finished. NoiseConnection.decrypt should be used now')
         self._next_fn = self.write_message
 
         buffer = bytearray()

noise/noise_protocol.py

@@ -121,8 +121,8 @@ class NoiseProtocol(object):
                                     'given {}'.format(self.pattern.psk_count, len(self.psks)))
 
         if self.initiator is None:
-            raise NoiseValidationError('You need to set role with NoiseBuilder.set_as_initiator '
-                                       'or NoiseBuilder.set_as_responder')
+            raise NoiseValidationError('You need to set role with NoiseConnection.set_as_initiator '
+                                       'or NoiseConnection.set_as_responder')
 
         for keypair in self.pattern.get_required_keypairs(self.initiator):
             if self.keypairs[keypair] is None:

requirements.txt

@@ -1 +1 @@
-cryptography==2.1.1
+cryptography==2.1.2

setup.py

@@ -32,6 +32,6 @@ setup(
     ],
     keywords='cryptography noiseprotocol noise security',
     packages=find_packages(exclude=['contrib', 'docs', 'tests', 'examples']),
-    install_requires=['cryptography==2.1.1'],
+    install_requires=['cryptography==2.1.2'],
     python_requires='~=3.5,~=3.6',
 )

tests/test_vectors.py

@@ -4,7 +4,7 @@ import os
 
 import pytest
 
-from noise.builder import NoiseBuilder, Keypair
+from noise.connection import NoiseConnection, Keypair
 
 logger = logging.getLogger(__name__)
 
@@ -56,20 +56,20 @@ class TestVectors(object):
     def vector(self, request):
         yield request.param
 
-    def _set_keypairs(self, vector, builder):
-        role = 'init' if builder.noise_protocol.initiator else 'resp'
+    def _set_keypairs(self, vector, connection):
+        role = 'init' if connection.noise_protocol.initiator else 'resp'
         setters = [
-            (builder.set_keypair_from_private_bytes, Keypair.STATIC, role + '_static'),
-            (builder.set_keypair_from_private_bytes, Keypair.EPHEMERAL, role + '_ephemeral'),
-            (builder.set_keypair_from_public_bytes, Keypair.REMOTE_STATIC, role + '_remote_static')
+            (connection.set_keypair_from_private_bytes, Keypair.STATIC, role + '_static'),
+            (connection.set_keypair_from_private_bytes, Keypair.EPHEMERAL, role + '_ephemeral'),
+            (connection.set_keypair_from_public_bytes, Keypair.REMOTE_STATIC, role + '_remote_static')
         ]
         for fn, keypair, name in setters:
             if name in vector:
                 fn(keypair, vector[name])
 
     def test_vector(self, vector):
-        initiator = NoiseBuilder.from_name(vector['protocol_name'])
-        responder = NoiseBuilder.from_name(vector['protocol_name'])
+        initiator = NoiseConnection.from_name(vector['protocol_name'])
+        responder = NoiseConnection.from_name(vector['protocol_name'])
         if 'init_psks' in vector and 'resp_psks' in vector:
             initiator.set_psks(psks=vector['init_psks'])
             responder.set_psks(psks=vector['resp_psks'])