Enum PastEpochDeletionPolicy 

pub enum PastEpochDeletionPolicy {
    MaxEpochs(usize),
    KeepAll,
}

Available on 32-bit or 64-bit only.

Configures the automatic deletion of past epoch secrets.

WARNING

Policies other than MaxEpochs(0) enable the storage of message secrets from past epochs. It is a trade-off between functionality and forward secrecy and should only be enabled if the Delivery Service cannot guarantee that application messages will be sent in the same epoch in which they were generated. The number for max_epochs should be as low as possible.

If the MaxEpochs policy is set to MaxEpochs(usize::MAX), if will be returned as KeepAll after deserialization due to backwards compatibility constraints.

Variants

MaxEpochs(usize)

Keep at most n past epoch secrets.

KeepAll

Keep all past epoch secrets.

NOTE: The application is responsible for deleting past epoch secrets when KeepAll is set. Past epoch secrets can be deleted manually using:

• MlsGroup::delete_past_epoch_secrets()

Trait Implementations

impl Clone for PastEpochDeletionPolicy

fn clone(&self) -> PastEpochDeletionPolicy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PastEpochDeletionPolicy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PastEpochDeletionPolicy

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PastEpochDeletionPolicy

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for PastEpochDeletionPolicy

fn eq(&self, other: &PastEpochDeletionPolicy) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for PastEpochDeletionPolicy

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for PastEpochDeletionPolicy

impl StructuralPartialEq for PastEpochDeletionPolicy