Module schedule 

Key Schedule

This module defines types and implementations for key schedule operations. It provides the EpochAuthenticator and ResumptionPskSecret types.

Internal Documentation

The key schedule is described in Section 8 of the MLS specification. It evolves in epochs, with new key material injected in each epoch.

The key schedule flow (from Section 8 of the MLS specification) is as follows:

Modules

errors

Key schedule errors.

psk

Preshared keys.

tests_and_kats

Structs

EpochAuthenticator

A secret that can be used among members to make sure everyone has the same group state.

ExternalPsk

External PSK.

PreSharedKeyId

A PreSharedKeyID is used to uniquely identify the PSKs that get injected in the key schedule.

ResumptionPskSecret

A group secret that can be used among members to prove that a member was part of a group in a given epoch.

Enums

Psk

The different PSK types.