Struct ReceiverMac 

pub struct ReceiverMac {
    pub key_id: u32,
    pub mac: [u8; 16],
}

Receiver-specific MAC (spec §7.3.6.3 ReceiverSpecificMAC).

When a sender sends a ciphertext to N receivers with the same suite but different keys, a 16-byte truncated HMAC is computed per receiver. The wire representation is a sequence of (key_id, mac) pairs in the SEC_POSTFIX.

key_id is the spec-conformant 4-byte ID (typically the low 32 bits of the sender-side CryptoHandle for this receiver), by which the receiver finds its specific MAC entry.

Fields

key_id: u32

4-byte CryptoTransformKeyId from §7.3.6.3.

mac: [u8; 16]

16-byte truncated HMAC-SHA256 over the ciphertext.

Implementations

impl ReceiverMac

pub const WIRE_SIZE: usize

Wire size of a single ReceiverMac entry (spec §7.3.6.3).

Trait Implementations

impl Clone for ReceiverMac

fn clone(&self) -> ReceiverMac

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ReceiverMac

impl Debug for ReceiverMac

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

Formats the value using the given formatter.

impl Eq for ReceiverMac

impl Hash for ReceiverMac

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ReceiverMac

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ReceiverMac