Struct FixedLenPoseidon2Hash

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pub struct FixedLenPoseidon2Hash<F, S, const INPUT_SIZE: usize, const OUTPUT_SIZE: usize>where
    F: PrimeField + Unit,
    S: Sponge<U = F> + Poseidon2Sponge,
{ /* private fields */ }

Expand description

Sponge-based CRHF where the Sponge uses Poseidon2 permutation Input length is fixed: the actual input can be shorter, but will internally be zero-padded to INPUT_SIZE

Example: FixedLenPoseidon2Hash<ark_bn254::Fr, Poseidon2SpongeStateBnN3R1, 6, 2>

Trait Implementations§

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impl<F, S, const IN: usize, const OUT: usize> CRHF for FixedLenPoseidon2Hash<F, S, IN, OUT>
where F: PrimeField + Unit, S: Sponge + Poseidon2Sponge,

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type Input = [F]

Input to the CRHF, allowed to be dynamically sized

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type Output = [F; OUT]

Output of the CRHF

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type Error = Poseidon2Error

Error type

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fn evaluate<T: Borrow<Self::Input>>( input: T, ) -> Result<Self::Output, Self::Error>

evaluate inputs and return hash output

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impl<F, S, const INPUT_SIZE: usize, const OUTPUT_SIZE: usize> Clone for FixedLenPoseidon2Hash<F, S, INPUT_SIZE, OUTPUT_SIZE>
where F: PrimeField + Unit + Clone, S: Sponge + Poseidon2Sponge + Clone,

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fn clone(&self) -> FixedLenPoseidon2Hash<F, S, INPUT_SIZE, OUTPUT_SIZE>

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

Auto Trait Implementations§

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impl<F, S, const INPUT_SIZE: usize, const OUTPUT_SIZE: usize> Freeze for FixedLenPoseidon2Hash<F, S, INPUT_SIZE, OUTPUT_SIZE>

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impl<F, S, const INPUT_SIZE: usize, const OUTPUT_SIZE: usize> RefUnwindSafe for FixedLenPoseidon2Hash<F, S, INPUT_SIZE, OUTPUT_SIZE>
where F: RefUnwindSafe, S: RefUnwindSafe,

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impl<F, S, const INPUT_SIZE: usize, const OUTPUT_SIZE: usize> Send for FixedLenPoseidon2Hash<F, S, INPUT_SIZE, OUTPUT_SIZE>
where S: Send,

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impl<F, S, const INPUT_SIZE: usize, const OUTPUT_SIZE: usize> Sync for FixedLenPoseidon2Hash<F, S, INPUT_SIZE, OUTPUT_SIZE>
where S: Sync,

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impl<F, S, const INPUT_SIZE: usize, const OUTPUT_SIZE: usize> Unpin for FixedLenPoseidon2Hash<F, S, INPUT_SIZE, OUTPUT_SIZE>
where F: Unpin, S: Unpin,

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impl<F, S, const INPUT_SIZE: usize, const OUTPUT_SIZE: usize> UnwindSafe for FixedLenPoseidon2Hash<F, S, INPUT_SIZE, OUTPUT_SIZE>
where F: UnwindSafe, S: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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