Struct Hash 

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

A 32-byte hash value.

This is the fundamental building block for commitments, right IDs, seal references, and all cryptographic operations in CSV.

Implementations

impl Hash

pub const fn new(bytes: [u8; 32]) -> Self

Creates a new Hash from exactly 32 bytes.

Panics

This method does not panic — it accepts any [u8; 32]. For fallible construction from a slice, use Hash::try_from.

pub const fn zero() -> Self

Returns a hash of all zeros. Useful as a sentinel value.

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

Returns a reference to the underlying 32-byte array.

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

Returns a mutable reference to the underlying 32-byte array.

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

Returns the hash as a byte slice.

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

Consumes the hash and returns the inner byte array.

pub fn to_vec(&self) -> Vec<u8>

Returns a new Vec<u8> containing the hash bytes.

This allocates. For a borrowed slice, use Self::as_slice.

pub fn to_hex(&self) -> String

Returns the hash as a lowercase hex string without the 0x prefix.

The returned string is always 64 characters long.

pub fn from_hex(s: &str) -> Result<Self, HashParseError>

Parses a Hash from a hex string.

The input may optionally start with 0x or 0X. The remaining characters must be valid hex digits representing exactly 32 bytes.

Errors

Returns HashParseError if the input is not valid hex or does not represent exactly 32 bytes.

Trait Implementations

impl AsRef<[u8]> for Hash

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

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

impl AsRef<[u8; 32]> for Hash

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

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

impl Clone for Hash

fn clone(&self) -> Hash

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Hash

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

Formats the value using the given formatter.

impl Default for Hash

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Hash

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Hash

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

Formats the value using the given formatter.

impl From<&[u8; 32]> for Hash

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

Converts to this type from the input type.

impl From<[u8; 32]> for Hash

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

Converts to this type from the input type.

impl FromStr for Hash

type Err = HashParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for Hash

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 Ord for Hash

fn cmp(&self, other: &Hash) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Hash

fn eq(&self, other: &Hash) -> 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 PartialOrd for Hash

fn partial_cmp(&self, other: &Hash) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Hash

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<&[u8]> for Hash

type Error = HashParseError

The type returned in the event of a conversion error.

fn try_from(bytes: &[u8]) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Hash

impl Eq for Hash

impl StructuralPartialEq for Hash