Module key 

Key management: OTAR, activation, verification, destruction. Key management for SDLS Extended Procedures (CCSDS 355.1-B-1).

Keys follow a state machine: PREACTIVE → ACTIVE → DEACTIVATED → DESTROYED

Master keys decrypt session keys delivered via OTAR. Session keys are used for frame encryption/authentication.

Structs

KeyRing

A key ring holding master and session keys.

ManagedKey

A managed cryptographic key.

Enums

KeyState

Key state in the lifecycle.

Constants

MAX_KEYS

Maximum number of keys in a key ring.

MAX_KEY_LEN

Maximum key length in bytes (AES-256).