Enum KemSharedKeySpec 

pub enum KemSharedKeySpec {
    Symmetric(SymmetricKeySpec),
    Hkdf {
        key: HkdfKeySpec,
        current: CurrentKeyProtection,
        history: HistoryObservationPlan,
    },
}

Typed usage of the 32-byte native shared secret. No KDF is added implicitly. For a caller-defined destination template, use crate::Session::encapsulate_native or crate::Session::decapsulate_native with crate::NativeKemParameters::MlKem and the same key’s managed reference. That route accepts crate::GenerationTemplate without converting its attributes into this convenience catalogue.

Variants

Symmetric(SymmetricKeySpec)

Any symmetric selection requesting exactly 32 key bytes: AES256, ChaCha20 or an HMAC hash with an explicit 32-byte key. No KDF is added.

Hkdf

Derive-only32-byte base through the existing explicit HKDF operations.

Fields

key: HkdfKeySpec

Native destination identity and key type.

current: CurrentKeyProtection

Native SENSITIVE/EXTRACTABLE request, separate from admission.

history: HistoryObservationPlan

Explicit native history and protection observations for the destination.