Re: [tor-bugs] #17457 [Tor Messenger]: Implement OMEMO

[Tor Bug Tracker & Wiki]

#17457: Implement OMEMO
---+-
 Reporter:  arlolra|  Owner:
 Type:  enhancement| Status:  new
 Priority:  Medium |  Milestone:
Component:  Tor Messenger  |Version:
 Severity:  Normal | Resolution:
 Keywords: |  Actual Points:
Parent ID: | Points:
 Reviewer: |Sponsor:
---+-

Comment (by arlolra):

 Notes from the OTRv4 meeting:
 https://lists.cypherpunks.ca/pipermail/otr-dev/2016-March/002447.html

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Re: [tor-bugs] #17457 [Tor Messenger]: Implement OMEMO

[Tor Bug Tracker & Wiki]

#17457: Implement OMEMO
---+-
 Reporter:  arlolra|  Owner:
 Type:  enhancement| Status:  new
 Priority:  Medium |  Milestone:
Component:  Tor Messenger  |Version:
 Severity:  Normal | Resolution:
 Keywords: |  Actual Points:
Parent ID: | Points:
 Reviewer: |Sponsor:
---+-

Comment (by vegansalad):

 Seems like they are looking to base it off of the Apache 2.0 licenced OLM
 ratchet implementation: ​https://matrix.org/git/olm/
 ​https://github.com/chrisballinger/OLMKit/tree/olmkit/xcode

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Re: [tor-bugs] #17457 [Tor Messenger]: Implement OMEMO

[Tor Bug Tracker & Wiki]

#17457: Implement OMEMO
---+-
 Reporter:  arlolra|  Owner:
 Type:  enhancement| Status:  new
 Priority:  Medium |  Milestone:
Component:  Tor Messenger  |Version:
 Severity:  Normal | Resolution:
 Keywords: |  Actual Points:
Parent ID: | Points:
 Reviewer: |Sponsor:
---+-

Comment (by vegansalad):

 The main devs for Chatsecure, Conversations, and Monal are discussing
 creating a modifying version of OMEMO based on the OLM protocol (which is
 pretty similar to what the axolotl protocol v2 looked like.).
 https://github.com/anurodhp/Monal/issues/9

 They want to build a tweaked version of something like OMEMO that would be
 incompatible with existing OMEMO clients, but that would be able to
 communicate with XMPP clients in the iOS app store like ChatSecure.

 If Tor Messenger is going to impliment an encryption protocol like OMEMO,
 it might be worth it to use the fork that these people are building
 instead of OMEMO itself so that Tor Messenger users can communicate with
 iOS users using a Signal based encryption standard. Also, OMEMO was
 created by the Conversations App person, so it he is transitioning to
 something else, it might be good to use that instead of OMEMO.

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Re: [tor-bugs] #17457 [Tor Messenger]: Implement OMEMO

[Tor Bug Tracker & Wiki]

#17457: Implement OMEMO
---+-
 Reporter:  arlolra|  Owner:
 Type:  enhancement| Status:  new
 Priority:  Medium |  Milestone:
Component:  Tor Messenger  |Version:
 Severity:  Normal | Resolution:
 Keywords: |  Actual Points:
Parent ID: | Points:
  Sponsor: |
---+-

Comment (by cypherpunks):

 Since Tor Messenger doesn't need to submit to Apple's licensing war
 against GPL, the only 2 bits of signal to extract from your lengthy quote
 are:
 ​* https://github.com/SilentCircle/libsalamander exists; and
 * "it may not be compatible with Conversations current implementation of
 OMEMO".

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Re: [tor-bugs] #17457 [Tor Messenger]: Implement OMEMO

[Tor Bug Tracker & Wiki]

#17457: Implement OMEMO
---+-
 Reporter:  arlolra|  Owner:
 Type:  enhancement| Status:  new
 Priority:  Medium |  Milestone:
Component:  Tor Messenger  |Version:
 Severity:  Normal | Resolution:
 Keywords: |  Actual Points:
Parent ID: | Points:
  Sponsor: |
---+-

Comment (by vegansalad):

 Let's bring the Axolotl ratchet encryption protocal that is used in Signal
 to Tor Messenger! https://github.com/trevp/axolotl/wiki

 The desktop Gajim XMPP client already has an experimental OMEMO plugin
 here: https://github.com/kalkin/gajim-omemo

 I don't know how best to represent this on TRAC, but this bug has also
 been filed upstream at InstantBird. You can find the issue here:
 https://bugzilla.mozilla.org/show_bug.cgi?id=1237416 If anyone has an
 account at bugzilla, it might be worth it to somehow keep both tickets
 updated as the other one gets updated.

 From what I understand, Tor Messenger would need to impliment these two
 ProtoXEPs to get OMEMO to work. Should I make a child ticket to add
 support for them? Are there other XEPs that need to be added? Do other
 people have other subtasks that they know would need to get done to make
 this transition?

 https://conversations.im/xeps/omemo-filetransfer.html

 XEP-: OMEMO Encrypted Jingle File Transfer
 Abstract:   This specification defines a Jingle application for
 transfering encrypted files from one entity to another. The protocol is
 based on the regular Jingle File Transfer specification and diverges from
 that only in the description of the file.

 https://conversations.im/xeps/multi-end.html

 XEP-: OMEMO Encryption
 Abstract:   This specification defines a protocol for end-to-end
 encryption in one-on-one chats that may have multiple clients per account.
 Author: Andreas Straub

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Re: [tor-bugs] #17457 [Tor Messenger]: Implement OMEMO

[Tor Bug Tracker & Wiki]

#17457: Implement OMEMO
---+-
 Reporter:  arlolra|  Owner:
 Type:  enhancement| Status:  new
 Priority:  Medium |  Milestone:
Component:  Tor Messenger  |Version:
 Severity:  Normal | Resolution:
 Keywords: |  Actual Points:
Parent ID: | Points:
  Sponsor: |
---+-
Changes (by poly):

 * cc: poly@… (added)


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Re: [tor-bugs] #17457 [Tor Messenger]: Implement OMEMO

[Tor Bug Tracker & Wiki]

#17457: Implement OMEMO
---+-
 Reporter:  arlolra|  Owner:
 Type:  enhancement| Status:  new
 Priority:  Medium |  Milestone:
Component:  Tor Messenger  |Version:
 Severity:  Normal | Resolution:
 Keywords: |  Actual Points:
Parent ID: | Points:
  Sponsor: |
---+-
Changes (by boklm):

 * cc: boklm (added)


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Re: [tor-bugs] #17457 [Tor Messenger]: Implement OMEMO

[Tor Bug Tracker & Wiki]

#17457: Implement OMEMO
---+-
 Reporter:  arlolra|  Owner:
 Type:  enhancement| Status:  new
 Priority:  Medium |  Milestone:
Component:  Tor Messenger  |Version:
 Severity:  Normal | Resolution:
 Keywords: |  Actual Points:
Parent ID: | Points:
  Sponsor: |
---+-
Changes (by sukhbir):

 * cc: sukhbir (added)


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[tor-bugs] #17457 [Tor Messenger]: Implement OMEMO

[Tor Bug Tracker & Wiki]

#17457: Implement OMEMO
---+-
 Reporter:  arlolra|  Owner:
 Type:  enhancement| Status:  new
 Priority:  Medium |  Milestone:
Component:  Tor Messenger  |Version:
 Severity:  Normal |   Keywords:
Actual Points: |  Parent ID:
   Points: |Sponsor:
---+-
 http://conversations.im/omemo/

 It's on the [https://chatsecure.org/blog/chatsecure-conversations-zom/
 ChatSecure roadmap]

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