Struct EncapsulatedKey 

pub struct EncapsulatedKey {
    pub layer: SubgraphLayer,
    pub ephemeral_public: [u8; 32],
    pub ciphertext: [u8; 48],
    pub nonce: [u8; 12],
}

An X25519 ECDH-encapsulated subgraph key (key wrapped for a specific recipient DID).

ephemeral_public is the sender’s ephemeral X25519 public key (32 bytes). ciphertext is the 32-byte layer key XOR-masked with the ECDH shared secret.

The recipient computes shared = X25519(their_static_private, ephemeral_public), then layer_key = ciphertext XOR shared, then verifies with mac.

Fields

layer: SubgraphLayer

ephemeral_public: [u8; 32]

ciphertext: [u8; 48]

AES-256-GCM ciphertext of the 32-byte layer key (32 + 16-byte tag = 48 bytes).

nonce: [u8; 12]

Nonce used for the AES-GCM wrap (12 bytes).

Trait Implementations

impl Clone for EncapsulatedKey

fn clone(&self) -> EncapsulatedKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EncapsulatedKey

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

Formats the value using the given formatter.