Enum NonceBytes 

#[non_exhaustive]
pub enum NonceBytes {
    X24([u8; 24]),
    Short12([u8; 12]),
}

Per-AEAD-kind nonce carrier — XChaCha20-Poly1305 uses 24 bytes, the AES-256-GCM family uses 12. A single variant enum keeps the on-wire layout round-trip stable under postcard. Variants use postcard’s default untagged discriminant (enum index byte).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

X24([u8; 24])

24-byte nonce — XChaCha20-Poly1305.

Short12([u8; 12])

12-byte nonce — AES-256-GCM / AES-256-GCM-SIV.

Implementations

impl NonceBytes

pub fn expected_len(kind: AeadKind) -> usize

Expected length for the given AeadKind. Forward-compat unknown variants map to 0 so callers can catch the mismatch as PiiError::UnsupportedAead.

pub fn as_slice(&self) -> &[u8]

Returns the nonce bytes as a slice regardless of variant.

Trait Implementations

impl Clone for NonceBytes

fn clone(&self) -> NonceBytes

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NonceBytes

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for NonceBytes

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for NonceBytes

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for NonceBytes

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for NonceBytes

impl StructuralPartialEq for NonceBytes