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89 commits

Author SHA1 Message Date
Richard van der Hoff
1b15465c42 Separate base64ing from the rest of msg encoding 
Factor the actual message encoding/decoding and encrypting/decrypting out to
separate functions from the top-level functions which do the base64-wrangling.

This is particularly helpful in the 'outbound' code-path where the offsets
required to allow room to base64-encode make the flow hard to see when it's all inline.
 2016-05-24 16:23:19 +01:00
Richard van der Hoff
a919a149fb Update megolm_cipher as a global struct 
Initialise megolm_cipher via the preprocessor macro, instead of with a
function.
 2016-05-24 14:54:01 +01:00
Richard van der Hoff
fc4756ddf1 Fix up some names, and protobuf tags 
Make names (of session_key and message_index) more consistent.

Use our own protobuf tags rather than trying to piggyback on the one-to-one
structure.
 2016-05-24 13:40:21 +01:00
Richard van der Hoff
39ad75314b Implement decrypting inbound group messages 
Includes creation of inbound sessions, etc
 2016-05-24 13:39:34 +01:00
Richard van der Hoff
8b1514c0a6 Implement functions to get the state of outbound session 
We need to be able to inspect an outbound session so that we can tell our peer
how to set up an inbound session.
 2016-05-24 13:39:34 +01:00
Richard van der Hoff
c058554132 Implement pickling/unpickling for outbound group sessions 2016-05-24 13:39:34 +01:00
Richard van der Hoff
caaed796ad Implementation of an outbound group session 2016-05-24 13:39:34 +01:00
Richard van der Hoff
68d3c7bfa9 Implementation of the megolm ratchet 2016-05-24 13:39:34 +01:00
Richard van der Hoff
42a300fc62 Factor out pickle_encoding from olm.cpp 
We don't need to have all of the top-level pickling functions in olm.cpp;
factor out the utilities to support it to pickle_encoding.cpp (and make sure
that they have plain-C bindings).
 2016-05-24 13:39:32 +01:00
Richard van der Hoff
256bce10fc Factor out olm_error_to_string to a separate file 
I want to be able to use this functionality from elsewhere, so factor it out to
its own file.
 2016-05-24 13:35:28 +01:00
Richard van der Hoff
2fd28a6682 Rewrite _olm_cipher_aes_sha_256 initialisation 
Replace the init-static-var dance with some preprocessor macros
 2016-05-24 12:06:47 +01:00
Richard van der Hoff
d4a3c8dbaa Remove 'destruct' from cipher_ops 
We never delete a cipher, and the destruct op is empty, so it's a bit pointless
 2016-05-24 09:56:01 +01:00
Richard van der Hoff
444ef1f706 Prefix for internal symbols 
Give a load of internal symbols "_olm_" prefixes. This better delineates the
public and private interfaces in the module, and helps avoid internal symbols
leaking out and possibly being abused.
 2016-05-23 18:55:06 +01:00
Richard van der Hoff
c57b2b71c5 C bindings for base64 functions 2016-05-23 18:55:06 +01:00
Richard van der Hoff
a1855b99b9 C binding for olm::unset 2016-05-23 18:55:05 +01:00
Richard van der Hoff
07b33acee5 C bindings for pickle functions 2016-05-23 18:55:05 +01:00
Richard van der Hoff
294cf482ea Convert cipher.hh to plain C 2016-05-23 18:55:05 +01:00
Richard van der Hoff
f9139dfa6a Convert error.hh to plain C 2016-05-23 18:55:05 +01:00
Richard van der Hoff
e533b0dc8e Give SHA256 functions C bindings 2016-05-23 18:55:05 +01:00
Richard van der Hoff
4f1bb49d20 Rename olm.hh to olm.h 2016-05-23 18:55:05 +01:00
Richard van der Hoff
acae4e8438 Remove functions which return strings 
We don't want anything which does dynamic memory allocation in the library.
 2016-05-20 15:07:10 +01:00
Richard van der Hoff
2a09ccbd63 Remove vestiges of logging 
Remove the (now non-functional) declarations of olm_set_log_level in the C and
js wrappers.
 2016-05-16 11:50:44 +01:00
Richard van der Hoff
3965320a9c Remove logging functionality 
Concerns have been raised that including logging functionality makes it harder
to audit the implementation to ensure that no secret information is leaked. We
are therefore removing it from the master branch.
 2016-05-16 11:13:54 +01:00
Richard van der Hoff
b3db0e6ee1 translate logging.cpp to C 2016-05-16 11:05:57 +01:00
Richard van der Hoff
48cb5f925d Add olm::log_enabled_for 2016-05-16 11:04:26 +01:00
Richard van der Hoff
11dbf2aab3 Fix a bunch of compiler warnings, and turn on warnings. 2016-04-26 18:10:13 +01:00
Richard van der Hoff
9848f84452 Add some logging to help understand what's going on 2016-04-26 17:55:26 +01:00
Richard van der Hoff
e7a2af1ede Add a basic logging implementation 2016-04-26 12:30:18 +01:00
Mark Haines
5e1b8a5b3b Add docstrings for the utility class 2015-08-20 10:08:15 +01:00
Mark Haines
7649125a9e Add docstrings for the Session methods 2015-08-19 18:16:47 +01:00
Mark Haines
b318055185 Replace hard coded references to the 32-byte key length with a constant, add utilities for copying data to and from fixed sized arrays 2015-08-19 17:32:06 +01:00
Mark Haines
a378a40b3a Document that the ciphertext and plaintext may share a buffer when encrypting and decrypting 2015-08-19 15:39:19 +01:00
Mark Haines
900d2d70b4 Add docstring for the base64 encode/decode methods 2015-08-19 15:38:20 +01:00
Mark Haines
c35d1d420f Check that the end of input hasn't been reached when unpickling a list 2015-08-11 13:14:06 +01:00
Mark Haines
39c1f3b355 Add methods for computing sha256 hashes and validating ed25519 signatures 2015-07-24 14:29:52 +01:00
Mark Haines
3468886e27 Add method getting a session id. Update the python and javascript bindings 2015-07-16 11:45:20 +01:00
Mark Haines
89d9b972a6 Add versions of olm_session_create_inbound and olm_session_matches_inbound which take the curve25519 identity key of the remote device we think the message is from as an additional argument 2015-07-16 10:45:10 +01:00
Mark Haines
3bfa8e5863 Fix bug in list where the wrong value was copied if an item was inserted at the beinging of the list 2015-07-15 16:31:45 +01:00
Mark Haines
137aa31e95 olm_account_last_error and olm_clear_account should take an Account not a Session 2015-07-15 13:24:26 +01:00
Mark Haines
2e49a6f41e Clear the random buffers once they've been used. Add methods for clearing the account and session object once they've been used 2015-07-10 18:29:14 +01:00
Mark Haines
5ad929104e Version the pickled objects and check for errors when unpickling them 2015-07-10 18:00:18 +01:00
Mark Haines
b6e248c9a5 Output simpler JSON for the account keys, don't sign the JSON but instead provide a olm_account_sign method so that the user of the library can sign the JSON themselves 2015-07-10 11:57:53 +01:00
Mark Haines
373acefde7 Add c bindings for the methods for managing one time keys 2015-07-09 18:35:54 +01:00
Mark Haines
5634be0507 Add methods for generating new one time keys and for tracking which one time keys have been published 2015-07-09 16:09:16 +01:00
Mark Haines
0e988237f6 Don't pass a key id when creating a new outbound session 2015-07-08 16:04:18 +01:00
Mark Haines
532dc0d4e7 Change the JSON format for one time keys to include what algorithm they are for 2015-07-08 15:30:34 +01:00
Mark Haines
dceae043b3 Remove the RemoteKey type since it wasn't being used 2015-07-08 14:57:55 +01:00
Mark Haines
5291ec78b5 Send the public part of the one time key rather than passing an identifier 2015-07-08 14:53:25 +01:00
Mark Haines
974e0984bd Update the javascript bindings and demo to match the format of the identity key JSON 2015-07-08 11:16:00 +01:00
Mark Haines
3a382aec59 Encode the account keys as a signed JSON object 2015-07-07 16:42:03 +01:00