Struct ring::hmac::Context [−][src]
A context for multi-step (Init-Update-Finish) HMAC signing.
Use sign
for single-step HMAC signing.
Implementations
impl Context
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pub fn with_key(signing_key: &Key) -> Self
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Constructs a new HMAC signing context using the given digest algorithm and key.
pub fn update(&mut self, data: &[u8])
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Updates the HMAC with all the data in data
. update
may be called
zero or more times until finish
is called.
pub fn sign(self) -> Tag
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Finalizes the HMAC calculation and returns the HMAC value. sign
consumes the context so it cannot be (mis-)used after sign
has been
called.
It is generally not safe to implement HMAC verification by comparing
the return value of sign
to a tag. Use verify
for verification
instead.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for Context
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impl Send for Context
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impl Sync for Context
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impl Unpin for Context
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impl UnwindSafe for Context
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,