2009-04-28:

	* src/auth.c: pubkey_type should be shifted by 8, not 16.  It
	doesn't matter right now, because it's always 0, but still.
	(Thanks to Can Tang.)

2008-08-15:

	* src/Makefile.am:
	* src/context.c:
	* src/context.h:
	* src/context_priv.c:
	* src/context_priv.h:
	* src/message.c:
	* src/message.h:
	* src/proto.c:
	* src/proto.h: Willy Lew's updates of the libotr API

2008-08-06:

	* src/proto.c: gcc 4.2 with -O2 assumes that integer overflow
	never occurs when optimizing away tests, including those for
	integer overflow.  The code was made more specific.

2008-07-09:

	* src/privkey.h:
	* src/privkey.c: Add otrl_privkey_generate_cancel to handle the
	case that the background key generation thread is cancelled or
	fails.

2008-07-06:

	* configure.ac: Update libtool version to match 4.0.0.

	* src/privkey-t.h:
	* src/privkey.c:
	* src/privkey.h:
	* src/userstate.c:
	* src/userstate.h: Support for generating privkeys in a
	background thread.

2008-07-02:

	* version.h: Change version number to 4.0.0 (but still far from
	release).

	* tlv.h:
	* proto.h:
	* proto.c:
	* message.h:
	* message.c:
	* dh.h:
	* dh.c: Support for applications requesting an extra session key
	that can be used for things like file transfers.

	* message.h:
	* message.c: Applications now use the handle_smp_event callback
	to handle SMP events, rather than having to hardcode part of the
	SMP state machine themselves.

2008-06-15:

	* README: Release version 3.2.0.

2008-06-13:

	* UPGRADING: Clarify what was new in 3.1.0, what was changed
	in 3.2.0.

2008-05-27:

	* UPGRADING: Update documentation.

	* README:
	* toolkit/*.[ch]:
	* src/*.[ch]: Update copyright dates to 2004-2008.

	* src/tlv.h: Add new OTRL_TLV_SMP1Q TLV type to indicate an
	instance of the first SMP message, with an explicit question.

	* src/sm.h:
	* src/sm.c: More carefully track the progress of the SMP using a
	new smp_prog_state field.  Also keep track of whether Bob
	received an explicit question from Alice using a new
	received_question field.

	* src/message.c: Handle explicit questions for the SMP.

	* src/message.c: Behave better if an SMP message fails
	verification.

	* README:
	* configure.ac:
	* src/version.h: Update version number to 3.2.0.

2007-07-26

	* src/sm.c:
	* src/message.c: ISO C cleanups (no mixing declarations with
	code)

	* src/sm.c: Fixed a 64-bit pointer error

2007-07-25

	* src/message.c: Behave sanely if we receive a totally malformed
	SMP message.

2007-07-24

	* src/proto.h:
	* src/proto.c:
	* src/message.c: Implemented fragmentation of large messages

	* src/message.h: New callback for fragmentation

	* src/privkey.h:
	* src/privkey.c (otrl_privkey_fingerprint_raw): New function to
	return a raw hash of an account's public key

	* src/proto.c: Keep track of the API version number passed to
	otrl_init()

	* src/context.h:
	* src/context.c:
	* src/tlv.h:
	* src/sm.h:
	* src/sm.c: Implemented the Socialist Millionaires' Protocol for
	authenticating buddies without using user-visible fingerprints

	* src/b64.h:
	* src/b64.c (decode, otrl_base64_decode): Corrected char vs.
	unsigned char

	* README:
	* configure.ac:
	* src/version.h: Change version number to 3.1.0

	* Most files: Update copyright information

2007-07-23

	* src/message.h:
	* src/message.c: Added account_name and account_name_free callbacks
	to OtrlMessageAppOps to let the application choose how to
	display the account name in OTR Error Messages.  Based on a
	patch from Evan Schoenberg <evan.s@dreskin.net>.

2006-07-24

	* src/privkey.h:
	* src/privkey.c: Add routines to read and write privkey and
	fingerprint data to FILE*s, instead of to filenames.

2006-05-09

	* Protocol-v2.html: Fix a typo, and correct the documentation
	regarding when MAC keys are revealed.

2006-04-13

	* src/context.h: Change "struct fingerprint" to "struct
	s_fingerprint" to appease some C++ compilers.

2006-02-09

	* src/auth.c (otrl_auth_handle_v1_key_exchange): Fix
	uninitialized variable received_pub.

2005-12-30

	* src/message.c: Fix a typo, thanks to Anton Blanchard
	<anton@samba.org>.

2005-11-20

	* src/proto.h: Fix typo in policy #defines.

2005-11-02

	* README:
	* src/version.h: Release version 3.0.0

2005-10-30

	* Protocol-v2.html: Clarified the uniqueness conditions for the
	counter.

	* src/auth.c (otrl_auth_handle_v1_key_exchange): Clear the auth
	structure when we receive an unexpected v1 Key Exchange Message.

2005-10-27

	* src/auth.h:
	* src/auth.c:
	* src/message.c: Ensure version 2 AKEs are always done with
	fresh D-H parameters.

	* src/proto.h:
	* src/proto.c:
	* src/message.c: Add a "flags" field to the version 2 Data
	Message, which can indicate that the Data Message should be
	ignored if unreadable (as opposed to displaying an error).

	* toolkit/parse.h:
	* toolkit/parse.c:
	* toolkit/otr_parse.c:
	* toolkit/otr_remac.c: Deal with the new kind of Data Message.

	* src/message.c: Use the gone_secure callback instead of the
	still_secure callback if the other side changes its fingerprint.

2005-10-19

	* src/context.h:
	* src/context.c: Added protocol_version as an explicit field in
	the ConnContext.

	* src/message.h:
	* src/message.c: protocol_version no longer needs to be
	explicitly passed to the gone_secure() and still_secure()
	callbacks.

	* packaging/fedora/libotr.spec: Patches from Paul

	* src/proto.c (rotate_dh_keys): Avoid potential double
	gcry_cipher_close().

	* src/tests.c: Regression test for double gcry_cipher_close().

2005-10-16

	* Major overhaul with implementation of version 2 AKE.

2005-08-08

	* toolkit/otr_parse.c (parse): Ignore MACs that are too short,
	rather than going into an infinite loop.

2005-08-04

	* Protocol: Added section describing fragments.

	* src/proto.h:
	* src/proto.c (otrl_proto_fragment_accumulate): 
	* src/context.h:
	* src/context.c (new_context, otrl_context_force_setup): Keep
	track of fragments in the ConnContext structure.

	* src/message.c (otrl_message_receiving): Handle fragments in
	received messages.

	* src/mem.c: Don't do arithmetic on void pointers.

2005-07-29

	* src/message.h:
	* src/message.c: Move ops to be the first param of
	new_fingerprint, as it is with all the other callbacks.

	* src/context.h:
	* src/context.c (otrl_context_set_preshared_secret):
	* src/dh.h:
	* src/dh.c (otrl_dh_session, otrl_dh_cmpctr):
	* src/message.h:
	* src/message.c (otrl_message_sending, send_or_error, process_kem)
	(otrl_message_receiving, otrl_message_disconnect):
	* src/privkey.h:
	* src/privkey.c (otrl_privkey_hash_to_human):
	* src/proto.h:
	* src/proto.c (otrl_proto_create_data):
	* src/tlv.h:
	* src/tlv.c (otrl_tlv_new, otrl_tlv_parse, otrl_tlv_seriallen)
	(otrl_tlv_serialize): Add missing "const"s.  (Closes #1243963)

2005-06-24

	* README:
	* configure.ac:
	* packaging/fedora/libotr.spec:
	* src/version.h: Change version to 3.0.0 (but don't yet release)

	* Protocol: Clarify that, if the user requests to see the secure
	session id in the middle of the conversation, the value
	displayed should be the one calculated at the time the private
	connection was established (the last Key Exchange Message that
	caused a rekeying), _not_ the DH secure id calculated from DH
	keys in more recent Data Messages.

	* libotr.m4: Have the version check require an exact match on
	the major version, since, for example, source that expects
	libotr 2.0.0 won't work with libotr 3.0.0.

	* libotr.m4: Add #include <stdlib.h> to the version test so that
	it compiles cleanly with -Wall -Werror.

	* src/proto.c:
	* src/dh.h:
	* src/dh.c:
	* src/context.h:
	* src/context.c: Save the secure session id so that it can be
	displayed to the user upon request, instead of only when the
	private session is initially set up.

	* src/privkey.c:
	* src/context.h:
	* src/context.c: Allow the app to set a "trust level" for
	fingerprints.  This is an arbitrary string, intended to indicate
	whether (or possibly by what means) the user has verified that
	this fingerprint is accurate.

	* src/context.h:
	* src/context.c: Allow the app to set an arbitrary binary
	"preshared secret" for the ConnContext.  This is currently
	unused, but in the future it would allow for users to exchange a
	secret _before_ they generate their fingerprints.  [But the
	protocol would have to be extended to support this.]

	* src/message.h:
	* src/message.c: Remove the "confirm_fingerprint" callback
	which requires the user to acknowledge the new fingerprint
	before it can be used.  Replace it with a "new_fingerprint"
	callback which merely informs the user that a new fingerprint
	has been received.

2005-05-13

	* libotr.m4: Fixed a bug which made configure fail to find the
	libotr header files if they weren't in the standard place.

2005-05-09

	* src/privkey.c (otrl_privkey_read_fingerprints): Allow fields,
	particularly accountnames, to contain spaces.  Closes #1198379.

2005-05-03

	* README:
	* configure.ac:
	* packaging/fedora/libotr.spec:
	* src/version.h: Change version to 2.0.2

	* packaging/debian: Remove this directory, as Thibaut VARENE
	<varenet@debian.org> is now responsible for the debian packages.

2005-02-23

	* src/privkey.c (otrl_privkey_hash_to_human): Avoid writing a
	NUL one byte past the end of the buffer

2005-02-16

	* README:
	* configure.ac:
	* packaging/debian/changelog:
	* packaging/fedora/libotr.spec:
	* src/version.h: Change version to 2.0.1

2005-02-15

	* src/message.c (otrl_message_sending, otrl_message_receiving)
	(otrl_message_disconnect):
	* src/proto.c (otrl_proto_accept_key_exchange)
	(otrl_proto_create_data, otrl_proto_accept_data): Don't send
	encrypted messages to a buddy who has disconnected his private
	connection with us.

	* src/message.c (otrl_message_sending): Don't show the user the
	"the last message was resent" notice if the message has never
	actually been sent before.

2005-02-09

	* src/proto.c (otrl_proto_create_data): Copy the msg before
	using since, since it may be an alias for context->lastmessage,
	which we're going to gcry_free().

2005-02-08

	* README:
	* configure.ac:
	* packaging/debian/changelog:
	* packaging/fedora/libotr.spec:
	* src/version.h: Change version to 2.0.0

2005-02-07

	* src/context.h:
	* src/context.c (new_context, otrl_context_force_setup):
	* src/message.c (otrl_message_sending, otrl_message_receiving):
	* src/proto.c (otrl_proto_accept_key_exchange): Keep track of
	whether the last message is eligible for retransmission.

2005-02-02

	* README:
	* configure.ac:
	* packaging/debian/changelog:
	* packaging/fedora/libotr.spec:
	* src/version.h: Change version to 1.99.0

	* packaging/debian/libotr1.dirs:
	* packaging/debian/libotr1.install:
	* packaging/debian/rules: Build and install with the correct mandir

	* packaging/debian/rules: Install a shlibs file

	* packaging/debian/control: Add Replaces: to the packages so
	that dpkg -i will install them.

	* toolkit/Makefile.am: Create the mandir if it's not yet there

	* packaging/debian/libotr1-dev.dirs:
	* packaging/debian/libotr1-dev.install:
	* packaging/fedora/libotr.spec: Package the libotr.m4 file

	* Protocol: Added sections on policies and TLVs

2005-02-01

	* Makefile.am:
	* src/Makefile.am:
	* toolkit/Makefile.am: Use automake-1.8

2005-01-31

	* tlv.h:
	* tlv.c:
	* src/Makefile.am: add new files tlv.c and tlv.h

	* src/message.c (otrl_message_sending): Allow you to specify a
	TLV chain to attach to a message.

	* src/message.c (otrl_message_receiving): Also return any TLV
	chain attached to the message, if present.

	* src/README: Document new TLV parameters to message functions.

	* src/message.c (otrl_message_receiving): No longer handle
	messages starting with "?OTR:" specially; that functionality now
	goes into TLVs.

	* src/message.c (otrl_message_disconnect): Send the notice of
	disconnect as a OTRL_TLV_DISCONNECTED TLV.

2005-01-30

	* README: update documentation for 2.0.0 API

	* src/message.c (otrl_message_receiving): Only send heartbeats
	in response to "real" messages.

	* src/message.c (otrl_message_receiving): If we receive a DATA
	message whose *plaintext* starts with "?OTR:", display it with
	display_otr_message if possible.

	* src/message.c (otrl_message_receiving): Display OTR_ERROR
	messages without the leading '?' using display_otr_message.

	* src/message.h (otrl_message_disconnect):
	* src/message.c (otrl_message_disconnect): new function

	* src/message.c (otrl_message_receiving): Display the "received
	unencrypted" warning message if we receive an unencrypted
	message with policy ALWAYS, even when not CONNECTED.

2005-01-29

	* src/proto.c (otrl_proto_accept_key_exchange):
	* src/message.c (otrl_message_sending, process_kem): Make the
	retransmission of an unencrypted message in ALWAYS work.

2005-01-28

	* src/message.h: New callback for checking whether a given user
	is online.

	* src/message.c (otrl_message_sending): Notify the user if he
	attempts to send an unencrypted message with policy ALWAYS.

	* src/message.h: New callback for fetching OTR policy
	* src/message.c (otrl_message_sending): Create a ConnContext if
	we don't have one already.  Use it to fetch the OTR policy.
	Just return if the policy is NEVER.  Only append the whitespace
	tag if the policy is OPPORTUNISTIC or ALWAYS.  Don't send
	unencrypted messages in ALWAYS, but store them for
	retransmission later.
	* src/message.c (otrl_message_receiving): Fetch the OTR policy.
	Just return if the policy is NEVER.  Only send a Key Exchange
	Message in response to an unexpected Data or Error Message in
	OPPORTUNISTIC and ALWAYS.  Only recognize the whitespace tag in
	OPPORTUNISTIC and ALWAYS.

	* src/message.h:
	* src/message.c: add accountname/protocol/username parameters to
	notify callback

	* src/message.h:
	* src/message.c: add display_otr_message callback for displaying
	OTR control messages

2005-01-27
	
	* src/privkey.h: #include <gcrypt.h> since we use things from
	libgcrypt in the .h file

	* src/proto.h:
	* src/proto.c: Make otrl_init take unsigned ints as arguments.

	* src/context.h:
	* src/context.c:
	* src/message.c:
	* src/proto.c: Keep track of the last message sent, and
	potentially resend it if sending it the first time triggered a
	rekey (because the other side had lost its OTR state, for
	example).

2005-01-26

	* packaging/debian/control: Changed debian package names to
	libotr1 and libotr1-dev.

	* libotr.m4: Added copyright notice, more comments

	* src/userstate.c:
	* src/userstate.h: New files

	* src/Makefile.am: Added -Wall to default CFLAGS
	* toolkit/Makefile.am: Added -Wall to default CFLAGS

	* src/context.c (otrl_context_find, otrl_context_forget_all):
	* src/context.h (otrl_context_find, otrl_context_forget_all):
	* src/message.c (otrl_message_sending, process_kem)
	(process_confresp, otrl_message_receiving):
	* src/message.h (otrl_message_sending, otrl_message_receiving)
	(OtrlMessageAppOps.confirm_fingerprint):
	* src/privkey.c (otrl_privkey_fingerprint, otrl_privkey_read)
	(otrl_privkey_generate, otrl_privkey_read_fingerprints)
	(otrl_privkey_write_fingerprints, otrl_privkey_find)
	(otrl_privkey_forget_all):
	* src/privkey.h (otrl_privkey_fingerprint, otrl_privkey_read)
	(otrl_privkey_generate, otrl_privkey_read_fingerprints)
	(otrl_privkey_write_fingerprints, otrl_privkey_find)
	(otrl_privkey_forget_all):
	* src/proto.c (otrl_proto_create_key_exchange)
	(otrl_proto_accept_key_exchange):
	* src/proto.h (otrl_proto_create_key_exchange)
	(otrl_proto_accept_key_exchange): Added OtrlUserState parameter
	to many calls, eliminating global state.

	* src/privkey.c (otrl_privkey_fingerprint): the buffer is now
	passed in, and not static

2005-01-25
	
	* src/version.h: bumped version number to 2.0.0 because API
	changed incompatibly
	* configure.ac: bumped version number to 2.0.0 because API
	changed incompatibly

	* src/message.h: added accountname parameter to
	confirm_fingerprint callback
	* src/message.c: passed accountname to confirm_fingerprint
	callback

	* libotr.m4: new file
	* Makefile.am: install (and uninstall) new libotr.m4 file

	* tools/Makefile.am: clean up manpage symlinks and add an
	uninstall rule

2005-01-23

	* src/proto.h: moved numeric version defines into version.h
	* src/version.h: moved numeric version defines into version.h

	* src/message.c (otrl_message_receiving): Update the context
	list if we create a new context

2005-01-22

	Released 1.0.4.

	Initial autoconfiscation, thanks to Greg Troxel <gdt@ir.bbn.com>.

	* src/message.c: log, but otherwise ignore, unrecognized OTR
	messages