Struct InnerMessage 

pub struct InnerMessage {
    pub message_type: u32,
    pub correlation_id: Bytes32,
    pub compression: u8,
    pub uncompressed_len: u32,
    pub counter: u64,
    pub timestamp_ms: u64,
    pub expires_at: u64,
    pub payload: Vec<u8>,
    pub sender_sig: Bytes96,
}

The sealed inner message (SPEC §5.2, FINAL field list — order is normative). Every field lives inside the AEAD-authenticated + signed region so a relay cannot tamper with any of it.

WU1 carries every field; the anti-replay (counter/timestamp_ms), expiry (expires_at), and signature (sender_sig) SEMANTICS are enforced by WU2/WU4 — the wire shape is final here.

Fields

message_type: u32

Re-bound message type, checked equal to the cleartext header (anti type-confusion, SPEC §5.2).

correlation_id: Bytes32

Re-bound correlation id, checked equal to the cleartext header (SPEC §5.2).

compression: u8

Compression algorithm id of payload (SPEC §1.1).

uncompressed_len: u32

Declared original length of payload — the decompression-bomb bound (SPEC §1.1).

counter: u64

Per-(sender→recipient) strictly-monotonic anti-replay counter (SPEC §5.6). Enforced in WU4.

timestamp_ms: u64

Sender wall-clock Unix milliseconds — the freshness field (SPEC §5.6). Enforced in WU4.

expires_at: u64

Sender-controlled TTL, Unix milliseconds; 0 = no explicit expiry (SPEC §5.6b). Enforced in WU4.

payload: Vec<u8>

The COMPRESSED type-payload bytes (SPEC §1.1). The sole content region.

sender_sig: Bytes96

The mandatory 96-byte BLS G2 sender signature (SPEC §5.1). Zeros until WU2 signs.

Trait Implementations

impl Clone for InnerMessage

fn clone(&self) -> InnerMessage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InnerMessage

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

Formats the value using the given formatter.

impl Eq for InnerMessage

impl PartialEq for InnerMessage

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

Equality operator ==.

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

Inequality operator !=.

impl Streamable for InnerMessage

fn update_digest(&self, digest: &mut Sha256)

fn stream(&self, out: &mut Vec<u8>) -> Result<()>

fn parse<const TRUSTED: bool>(input: &mut Cursor<&[u8]>) -> Result<Self>

fn to_bytes(&self) -> Result<Vec<u8>, Error>

fn from_bytes(bytes: &[u8]) -> Result<Self, Error>

where Self: Sized,

fn from_bytes_unchecked(bytes: &[u8]) -> Result<Self, Error>

where Self: Sized,

fn hash(&self) -> [u8; 32]

impl StructuralPartialEq for InnerMessage