Struct Data 

pub struct Data<H: Hasher> {
    pub shards: Vec<Vec<u8>>,
    pub proof: RangeProof<H>,
}

All data shards from a Reed-Solomon encoded object.

This is more efficient than individual chunks when transmitting complete blocks. Includes a bmt::RangeProof to prove the data shards are part of the commitment.

Fields

shards: Vec<Vec<u8>>

The data shards.

proof: RangeProof<H>

Range proof for indices 0..k (proving all data shards are part of the commitment).

Implementations

impl<H: Hasher> Data<H>

pub fn new(shards: Vec<Vec<u8>>, proof: RangeProof<H>) -> Self

Create a new Data from data shards and range proof.

pub fn verify(&self, min: u16, root: &H::Digest) -> bool

Verify the Data against a known root.

This verifies that the data shards are part of the bmt commitment.

pub fn extract(self) -> Vec<u8>

Extract the original data from the Data.

Trait Implementations

impl<H: Clone + Hasher> Clone for Data<H>

fn clone(&self) -> Data<H>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<H: Hasher> EncodeSize for Data<H>

fn encode_size(&self) -> usize

Returns the encoded size of this value (in bytes).

impl<H: Hasher> Read for Data<H>

type Cfg = usize

The maximum size of each shard.

fn read_cfg(reader: &mut impl Buf, cfg: &Self::Cfg) -> Result<Self, Error>

Reads a value from the buffer using the provided configuration cfg.

impl<H: Hasher> Write for Data<H>

fn write(&self, writer: &mut impl BufMut)

Writes the binary representation of self to the provided buffer buf.