[Standards] UPDATED: XEP-0384 (OMEMO Encryption)

Maxime Buquet pep at bouah.net
Tue Mar 10 15:35:43 UTC 2020

On 2020/03/10, pep at bouah.net wrote:
> Version 0.4.0 of XEP-0384 (OMEMO Encryption) has been released.
> Abstract:
> This specification defines a protocol for end-to-end encryption in
> one-to-one chats, as well as group chats where each participant may
> have multiple clients per account.
> Changelog:
> * Incorporate the double ratchet protocol specification.
> * Use one node to store all bundles. One item per bundle.
> * Recommend 'open' access model for both PEP nodes.
> * Specify OMEMO encryption for XEP-0045 Multi-User Chats.
> * Use XEP-0420: Stanza Content Encryption.
> * Use AES256/CBC to encrypt SCE payload.
> * Change namespace to


It seems the script didn't pick on up this. Thanks to those who told me :)

> * Use wrapping 'keys' element for key elements in 'header'.
> * Define threat model (dg)

The XEP is also being moved back to Experimental with this update.

Maxime “pep” Buquet
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