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2016-05-24megolm.c: rewrite counter updateRichard van der Hoff
We no longer need to keep track of intermediate values of the counter, which means we can update it much more easily.
2016-05-24megolm.c: Remove spurious arguments to rehash_partRichard van der Hoff
These were left over from when rehash_part did a bunch of logging.
2016-05-24Separate base64ing from the rest of msg encodingRichard van der Hoff
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.
2016-05-24Update megolm_cipher as a global structRichard van der Hoff
Initialise megolm_cipher via the preprocessor macro, instead of with a function.
2016-05-24Build the crypto libs as C99Richard van der Hoff
Some of the crypto libs rely on UINT64_C, which in glibc 2.17 and earlier was not defined for C++ code (see https://sourceware.org/bugzilla/show_bug.cgi?id=15366).
2016-05-24Use _olm_unset instead of memsetRichard van der Hoff
memset is at risk of being optimised away, so use _olm_unset instead.
2016-05-24Avoid relying on uint -> int casting behaviourRichard van der Hoff
The behaviour when casting from a uint32_t which has overflowed (so has the top bit set) to int32_t is implementation-defined, so let's avoid relying on it.
2016-05-24Fix up some names, and protobuf tagsRichard van der Hoff
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.
2016-05-24Support for pickling inbound group sessionsRichard van der Hoff
2016-05-24Implement decrypting inbound group messagesRichard van der Hoff
Includes creation of inbound sessions, etc
2016-05-24Implement functions to get the state of outbound sessionRichard van der Hoff
We need to be able to inspect an outbound session so that we can tell our peer how to set up an inbound session.
2016-05-24Implement pickling/unpickling for outbound group sessionsRichard van der Hoff
2016-05-24Implementation of an outbound group sessionRichard van der Hoff
2016-05-24Implementation of the megolm ratchetRichard van der Hoff
2016-05-24Factor out pickle_encoding from olm.cppRichard van der Hoff
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).
2016-05-24Factor out olm_error_to_string to a separate fileRichard van der Hoff
I want to be able to use this functionality from elsewhere, so factor it out to its own file.
2016-05-24Merge branch 'rav/c_bindings'Richard van der Hoff
2016-05-24Rewrite _olm_cipher_aes_sha_256 initialisationRichard van der Hoff
Replace the init-static-var dance with some preprocessor macros
2016-05-24Remove 'destruct' from cipher_opsRichard van der Hoff
We never delete a cipher, and the destruct op is empty, so it's a bit pointless
2016-05-23Fix bug in bounds check when parsingMark Haines
2016-05-23Prefix for internal symbolsRichard van der Hoff
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.
2016-05-23C bindings for base64 functionsRichard van der Hoff
2016-05-23C binding for olm::unsetRichard van der Hoff
2016-05-23C bindings for pickle functionsRichard van der Hoff
2016-05-23Convert cipher.hh to plain CRichard van der Hoff
2016-05-23Convert error.hh to plain CRichard van der Hoff
2016-05-23Give SHA256 functions C bindingsRichard van der Hoff
2016-05-23Rename olm.hh to olm.hRichard van der Hoff
2016-05-23Complete fixes for olm_*_last_errorRichard van der Hoff
Should have been in the previous commit :/
2016-05-23fix range check in olm_*_last_errrorRichard van der Hoff
2016-05-20crypto.cpp: Fix commentsRichard van der Hoff
These seem to be the wrong way around.
2016-05-20Remove functions which return stringsRichard van der Hoff
We don't want anything which does dynamic memory allocation in the library.
2016-05-16Remove logging functionalityRichard van der Hoff
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.
2016-05-16translate logging.cpp to CRichard van der Hoff
2016-05-16Add olm::log_enabled_forRichard van der Hoff
2016-04-26Fix a bunch of compiler warnings, and turn on warnings.Richard van der Hoff
2016-04-26Add some logging to help understand what's going onRichard van der Hoff
2016-04-26Add a basic logging implementationRichard van der Hoff
2015-12-03Use header files where possibleRichard van der Hoff
This fixes an incorrect re-declaration of ed25519_sign. Implement header files for some of the other library bits so that we don't need to declare functions in crypto.cpp.
2015-08-19Replace hard coded references to the 32-byte key length with a constant, add ↵Mark Haines
utilities for copying data to and from fixed sized arrays
2015-08-18Make the internal functions static, remove some unused internal functionsMark Haines
2015-08-07Fix crash where the message length was shorter than the length of the macMark Haines
2015-08-07Initialise the length fields of the reader struct in decode_message, even if ↵Mark Haines
the message is invalid, fixes a crash where the message was too short
2015-08-07Fix a crash when decoding messages that are too shortMark Haines
2015-07-24Add methods for computing sha256 hashes and validating ed25519 signaturesMark Haines
2015-07-16Add method getting a session id. Update the python and javascript bindingsMark Haines
2015-07-16Add versions of olm_session_create_inbound and olm_session_matches_inbound ↵Mark Haines
which take the curve25519 identity key of the remote device we think the message is from as an additional argument
2015-07-15olm_account_last_error and olm_clear_account should take an Account not a ↵Mark Haines
Session
2015-07-14Add a test for pickling and unpickling sessions, fix off by one error when ↵Mark Haines
unpickling sessions
2015-07-10Clear the random buffers once they've been used. Add methods for clearing ↵Mark Haines
the account and session object once they've been used