Module conversation

MLS groups (aka conversation) are the actual entities cementing all the participants in a conversation.

This table summarizes what operations are permitted on a group depending its state: (PP=pending proposal, PC=pending commit)

can I ?	0 PP / 0 PC	1+ PP / 0 PC	0 PP / 1 PC	1+ PP / 1 PC
encrypt	✅	❌	❌	❌
handshake	✅	✅	❌	❌
merge	❌	❌	✅	✅
decrypt	✅	✅	✅	✅

Modules

• decrypt
  MLS defines 3 kind of messages: Proposal, Commits and Application messages. Since they can (should) be all encrypted we need to first decrypt them before deciding what to do with them.

Structs

• MlsConversation
  This is a wrapper on top of the OpenMls’s MlsGroup, that provides Core Crypto specific functionality

Type Aliases

• ConversationId
  A unique identifier for a group/conversation. The identifier must be unique within a client.