Struct holochain::prelude::Hash256Bits
pub struct Hash256Bits(_);
Expand description
256 Bit generic hash.
Trait Implementations§
§impl AsRef<[u8]> for Hash256Bits
impl AsRef<[u8]> for Hash256Bits
§impl Debug for Hash256Bits
impl Debug for Hash256Bits
The only meaningful debug information for a cryptograhpic secret is the literal bytes. Also, encodings like base64 are not constant time so debugging could open some weird side channel issue trying to be ‘human friendly’. It seems better to never try to encode secrets.
Note that when using this crate with feature “subtle-encoding”, a hex representation will be used.
§impl<'de> Deserialize<'de> for Hash256Bits
impl<'de> Deserialize<'de> for Hash256Bits
§fn deserialize<D>(
deserializer: D
) -> Result<Hash256Bits, <D as Deserializer<'de>>::Error>where
D: Deserializer<'de>,
fn deserialize<D>( deserializer: D ) -> Result<Hash256Bits, <D as Deserializer<'de>>::Error>where D: Deserializer<'de>,
§impl From<[u8; 32]> for Hash256Bits
impl From<[u8; 32]> for Hash256Bits
Trivial new type derivation. Secrets should have private interiors and be constructed directly from fixed length arrays of known length.
§fn from(b: [u8; 32]) -> Hash256Bits
fn from(b: [u8; 32]) -> Hash256Bits
§impl PartialEq<Hash256Bits> for Hash256Bits
impl PartialEq<Hash256Bits> for Hash256Bits
Constant time equality check. This mitigates timing attacks where a remote agent can reverse engineer data by measuring tiny changes in latency associated with optimised equality checks. More matching bytes = more latency = vulnerability. This type of attack has been successfully demonstrated over a network despite varied latencies.
§fn eq(&self, other: &Hash256Bits) -> bool
fn eq(&self, other: &Hash256Bits) -> bool
self
and other
values to be equal, and is used
by ==
.§impl Serialize for Hash256Bits
impl Serialize for Hash256Bits
§fn serialize<S>(
&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>where
S: Serializer,
fn serialize<S>( &self, serializer: S ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>where S: Serializer,
§impl TryFrom<&[u8]> for Hash256Bits
impl TryFrom<&[u8]> for Hash256Bits
§type Error = SecurePrimitiveError
type Error = SecurePrimitiveError
§fn try_from(
slice: &[u8]
) -> Result<Hash256Bits, <Hash256Bits as TryFrom<&[u8]>>::Error>
fn try_from( slice: &[u8] ) -> Result<Hash256Bits, <Hash256Bits as TryFrom<&[u8]>>::Error>
impl Eq for Hash256Bits
Auto Trait Implementations§
impl RefUnwindSafe for Hash256Bits
impl Send for Hash256Bits
impl Sync for Hash256Bits
impl Unpin for Hash256Bits
impl UnwindSafe for Hash256Bits
Blanket Implementations§
§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
§type ArchivedMetadata = ()
type ArchivedMetadata = ()
§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata ) -> <T as Pointee>::Metadata
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
§impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,
impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere W: DeserializeWith<F, T, D>, D: Fallible + ?Sized, F: ?Sized,
§fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>
fn deserialize( &self, deserializer: &mut D ) -> Result<With<T, W>, <D as Fallible>::Error>
source§impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.§impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
§impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
§impl<T> Pointable for T
impl<T> Pointable for T
§impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere SS: SubsetOf<SP>,
§fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
self
from the equivalent element of its
superset. Read more§fn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
self
is actually part of its subset T
(and can be converted to it).§fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
self.to_subset
but without any property checks. Always succeeds.§fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
self
to the equivalent element of its superset.