Struct Hash

impl Hash

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

The raw bytes of the Hash. Note that byte arrays don't provide constant-time equality checking, so if you need to compare hashes, prefer the Hash type.

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

Create a Hash from its raw bytes representation.

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

The raw bytes of the Hash, as a slice. Useful for serialization. Note that byte arrays don't provide constant-time equality checking, so if you need to compare hashes, prefer the Hash type.

fn from_slice(bytes: &[u8]) -> Result<Self, TryFromSliceError>

Create a Hash from its raw bytes representation as a slice.

Returns an error if the slice is not exactly 32 bytes long.

fn to_hex(&self) -> ArrayString<{ _ }>

Encode a Hash in lowercase hexadecimal.

The returned ArrayString is a fixed size and doesn't allocate memory on the heap. Note that ArrayString doesn't provide constant-time equality checking, so if you need to compare hashes, prefer the Hash type.

fn from_hex(hex: impl AsRef<[u8]>) -> Result<Self, HexError>

Decode a Hash from hexadecimal. Both uppercase and lowercase ASCII bytes are supported.

Any byte outside the ranges '0'...'9', 'a'...'f', and 'A'...'F' results in an error. An input length other than 64 also results in an error.

Note that Hash also implements FromStr, so Hash::from_hex("...") is equivalent to "...".parse().