Struct Seed 

pub struct Seed { /* private fields */ }

Seed type for RNG initialization

Seeds can be created from various blockchain state sources including block hashes, timestamps, and VRF outputs.

Implementations

impl Seed

pub fn from_bytes(bytes: Vec<u8>) -> Result<Self>

Create a seed from raw bytes

pub fn from_block_hash(hash: &[u8; 32]) -> Result<Self>

Create a seed from a block hash (32 bytes)

pub fn from_block_hash_slice(hash: &[u8]) -> Result<Self>

Create a seed from a block hash slice

pub fn from_timestamp(timestamp: u64) -> Result<Self>

Create a seed from a timestamp

pub fn from_vrf(vrf_output: &[u8]) -> Result<Self>

Create a seed from a VRF output

pub fn from_combined(sources: &[&[u8]]) -> Result<Self>

Combine multiple seed sources into one seed

Uses Blake3 to hash all inputs together for uniform distribution

pub fn from_blockchain_state( block_hash: &[u8; 32], timestamp: u64, vrf_output: Option<&[u8]>, ) -> Result<Self>

Create a seed from block hash, timestamp, and optional VRF

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

Get the seed as a byte slice

pub fn len(&self) -> usize

Get the seed length in bytes

pub fn is_empty(&self) -> bool

Check if the seed is empty

pub fn resize(&mut self, size: usize) -> Result<()>

Expand or truncate seed to a specific size

Trait Implementations

impl AsRef<[u8]> for Seed

fn as_ref(&self) -> &[u8]

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for Seed

fn clone(&self) -> Seed

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Seed

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

Formats the value using the given formatter.

impl From<[u8; 32]> for Seed

fn from(bytes: [u8; 32]) -> Self

Converts to this type from the input type.

impl From<Vec<u8>> for Seed

fn from(bytes: Vec<u8>) -> Self

Converts to this type from the input type.

impl PartialEq for Seed

fn eq(&self, other: &Seed) -> 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 Eq for Seed

impl StructuralPartialEq for Seed