Struct SipState

pub struct SipState {
    pub(crate) v0: u64,
    pub(crate) v1: u64,
    pub(crate) v2: u64,
    pub(crate) v3: u64,
}

Internal state of one SipHash instance

Fields

v0: u64

State variable V0 as defined in the SipHash paper

v1: u64

State variable V1 as defined in the SipHash paper

v2: u64

State variable V2 as defined in the SipHash paper

v3: u64

State variable V3 as defined in the SipHash paper

Implementations

impl SipState

const SIZE: usize = 32usize

Size of the internal SipHash state

pub fn new(v0: u64, v1: u64, v2: u64, v3: u64) -> Self

Construct a new SipHash state.

This takes the parameters v0..v3 as defined in the SipHash paper.

pub fn new_from_bytes(bytes: &[u8; 32]) -> Self

Construct a new SipHash state directly from bytes.

This is not suitable for use with arbitrary user input, such as all zeroes. HashX always generates these initialization vectors using another pseudorandom function (Blake2b).

pub fn pair_from_seed(seed: &[u8]) -> (SipState, SipState)

Construct a pair of SipHash instances from a seed.

The seed may be an arbitrary length. Takes the Blake2b hash of the seed using the correct settings for HashX, splitting the digest into two Self::new_from_bytes() calls.

pub(crate) fn sip_round(&mut self)

One SipRound as defined in the SipHash paper

Modifies the SipState in-place.

Trait Implementations

impl Clone for SipState

fn clone(&self) -> SipState

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SipState

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

Formats the value using the given formatter.

impl From<[u64; 4]> for SipState

fn from(a: [u64; 4]) -> Self

Converts to this type from the input type.

impl From<SipState> for [u64; 4]

fn from(s: SipState) -> Self

Converts to this type from the input type.

impl PartialEq for SipState

fn eq(&self, other: &SipState) -> 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 Copy for SipState

impl Eq for SipState

impl StructuralPartialEq for SipState