Struct VrfOutput 

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

VRF output (beta): the 64-byte pseudorandom value a verified proof yields.

CONIKS derives the private tree index from this value (see VrfOutput::index).

Implementations

impl VrfOutput

pub fn from_bytes(bytes: [u8; 64]) -> Self

Wrap a raw 64-byte VRF output.

pub fn as_bytes(&self) -> &[u8; 64]

The raw 64-byte output.

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

The 256-bit (32-byte) tree index derived from this output: the first 32 bytes of beta, consumed most-significant-bit-first as the root-to-leaf path in the CONIKS prefix tree.

Because beta is pseudorandom and unique per (key, input), the derived index is a stable, verifiable, privacy-preserving position: an observer who sees the index learns nothing about the identity, and the directory cannot move an identity to a different position without a fresh VRF proof.

Trait Implementations

impl Clone for VrfOutput

fn clone(&self) -> VrfOutput

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VrfOutput

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

Formats the value using the given formatter.

impl Eq for VrfOutput

impl Hash for VrfOutput

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 VrfOutput

fn eq(&self, other: &VrfOutput) -> 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 StructuralPartialEq for VrfOutput