Struct blake3::Hash [−][src]
pub struct Hash(_);
Expand description
An output of the default size, 32 bytes, which provides constant-time equality checking.
Hash
implements From
and Into
for [u8; 32]
, and it provides an
explicit as_bytes
method returning &[u8; 32]
. However, byte arrays
and slices don’t provide constant-time equality checking, which is often a
security requirement in software that handles private data. Hash
doesn’t
implement Deref
or AsRef
, to avoid situations where a type
conversion happens implicitly and the constant-time property is
accidentally lost.
Hash
provides the to_hex
method for converting to hexadecimal. It
doesn’t directly support converting from hexadecimal, but here’s an example
of doing that with the hex
crate:
use std::convert::TryInto; let hash_hex = "d74981efa70a0c880b8d8c1985d075dbcbf679b99a5f9914e5aaf96b831a9e24"; let hash_bytes = hex::decode(hash_hex)?; let hash_array: [u8; blake3::OUT_LEN] = hash_bytes[..].try_into()?; let hash: blake3::Hash = hash_array.into();
Implementations
impl Hash
[src]
impl Hash
[src]pub fn as_bytes(&self) -> &[u8; 32]
[src]
pub fn as_bytes(&self) -> &[u8; 32]
[src]The 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.
pub fn to_hex(&self) -> ArrayString<[u8; 64]>
[src]
pub fn to_hex(&self) -> ArrayString<[u8; 64]>
[src]The hexadecimal encoding of the Hash
. 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.
Trait Implementations
impl Copy for Hash
[src]
impl Eq for Hash
[src]
Auto Trait Implementations
impl RefUnwindSafe for Hash
impl Send for Hash
impl Sync for Hash
impl Unpin for Hash
impl UnwindSafe for Hash
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
[src]
pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> Pointable for T
impl<T> Pointable for T
impl<T> Same<T> for T
impl<T> Same<T> for T
type Output = T
type Output = T
Should always be Self
impl<T> ToOwned for T where
T: Clone,
[src]
impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
[src]
pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
[src]
pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more