Struct Iv 

pub struct Iv(/* private fields */);

A nonce for writing. Always 32 bytes, by type.

There is no constructor that takes a length and none that takes fewer bytes, so “encrypt with a 12-byte nonce” has no spelling in this crate.

Implementations

impl Iv

pub const LEN: usize = 32

The nonce length sops writes.

pub fn generate() -> Result<Self, WireError>

Draw a fresh nonce.

pub fn from_wire_exact(bytes: &[u8]) -> Option<Self>

Adopt a nonce recovered from a file so an unchanged value re-encrypts identically. Only accepts the canonical length — a shorter nonce off the wire can be read but is never carried forward into a write.

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

Trait Implementations

impl Clone for Iv

fn clone(&self) -> Iv

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Iv

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

A nonce is public data — it ships in the file — so showing it is fine and makes an IV-reuse question answerable.

impl Eq for Iv

impl Hash for Iv

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 Iv

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Iv