[][src]Struct asuran::chunker::buzhash::BuzHash

pub struct BuzHash {
    table: [u64; 256],
    window_size: u32,
    mask: u64,
    min_size: usize,
    max_size: usize,

Settings for a BuzHash Chunker

Uses a randomized lookup table derived from a nonce provided by the repository key material, to help provide resistance against a chunk size based fingerprinting attack, for users who are concerned about such a thing.

This is a very tenuous mitigation for such an attack, borrowed from borg, and is, fundamentally, a temporary work around. The "correct" solution is to implement a better repository structure, that does not leak chunk sizes.


table: [u64; 256]window_size: u32mask: u64min_size: usizemax_size: usize


impl BuzHash[src]

pub fn new(nonce: u64, window_size: u32, mask_bits: u32) -> BuzHash[src]

impl BuzHash[src]

pub fn with_default(nonce: u64) -> BuzHash[src]

Trait Implementations

impl Chunker for BuzHash[src]

type Chunks = BuzHashChunker

The return type of the functions in this trait is an iterator over the chunks of their input. Read more

impl Clone for BuzHash[src]

impl Copy for BuzHash[src]

Auto Trait Implementations

impl RefUnwindSafe for BuzHash

impl Send for BuzHash

impl Sync for BuzHash

impl Unpin for BuzHash

impl UnwindSafe for BuzHash

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized

impl<T> AsyncChunker for T where
    T: Chunker + Send + Sync,
    <T as Chunker>::Chunks: Send

impl<T> Borrow<T> for T where
    T: ?Sized

impl<T> BorrowMut<T> for T where
    T: ?Sized

impl<T> From<T> for T[src]

impl<T> Instrument for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>, 

impl<T> WithSubscriber for T[src]