p3_poseidon2

Struct Poseidon2

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pub struct Poseidon2<F, ExternalPerm, InternalPerm, const WIDTH: usize, const D: u64> { /* private fields */ }
Expand description

The Poseidon2 permutation.

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impl<AF, ExternalPerm, InternalPerm, const WIDTH: usize, const D: u64> Poseidon2<AF, ExternalPerm, InternalPerm, WIDTH, D>
where AF: AbstractField, AF::F: PrimeField, ExternalPerm: ExternalLayerConstructor<AF, WIDTH>, InternalPerm: InternalLayerConstructor<AF>,

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pub fn new( external_constants: ExternalLayerConstants<AF::F, WIDTH>, internal_constants: Vec<AF::F>, ) -> Self

Create a new Poseidon2 configuration. This internally converts the given constants to the relevant packed versions.

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pub fn new_from_rng<R: Rng>( rounds_f: usize, rounds_p: usize, rng: &mut R, ) -> Self
where Standard: Distribution<AF::F> + Distribution<[AF::F; WIDTH]>,

Create a new Poseidon2 configuration with random parameters.

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impl<AF, ExternalPerm, InternalPerm, const WIDTH: usize, const D: u64> Poseidon2<AF, ExternalPerm, InternalPerm, WIDTH, D>
where AF: AbstractField, AF::F: PrimeField64, ExternalPerm: ExternalLayerConstructor<AF, WIDTH>, InternalPerm: InternalLayerConstructor<AF>,

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pub fn new_from_rng_128<R: Rng>(rng: &mut R) -> Self
where Standard: Distribution<AF::F> + Distribution<[AF::F; WIDTH]>,

Create a new Poseidon2 configuration with 128 bit security and random rounds constants.

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impl<F: Clone, ExternalPerm: Clone, InternalPerm: Clone, const WIDTH: usize, const D: u64> Clone for Poseidon2<F, ExternalPerm, InternalPerm, WIDTH, D>

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fn clone(&self) -> Poseidon2<F, ExternalPerm, InternalPerm, WIDTH, D>

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
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impl<F: Debug, ExternalPerm: Debug, InternalPerm: Debug, const WIDTH: usize, const D: u64> Debug for Poseidon2<F, ExternalPerm, InternalPerm, WIDTH, D>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<AF, ExternalPerm, InternalPerm, const WIDTH: usize, const D: u64> Permutation<[AF; WIDTH]> for Poseidon2<<AF::F as Field>::Packing, ExternalPerm, InternalPerm, WIDTH, D>
where AF: AbstractField + Sync, AF::F: PrimeField, ExternalPerm: ExternalLayer<AF, WIDTH, D>, InternalPerm: InternalLayer<AF, WIDTH, D>,

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fn permute_mut(&self, state: &mut [AF; WIDTH])

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fn permute(&self, input: T) -> T

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impl<AF, ExternalPerm, InternalPerm, const WIDTH: usize, const D: u64> CryptographicPermutation<[AF; WIDTH]> for Poseidon2<<AF::F as Field>::Packing, ExternalPerm, InternalPerm, WIDTH, D>
where AF: AbstractField + Sync, AF::F: PrimeField, ExternalPerm: ExternalLayer<AF, WIDTH, D>, InternalPerm: InternalLayer<AF, WIDTH, D>,

Auto Trait Implementations§

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impl<F, ExternalPerm, InternalPerm, const WIDTH: usize, const D: u64> Freeze for Poseidon2<F, ExternalPerm, InternalPerm, WIDTH, D>
where ExternalPerm: Freeze, InternalPerm: Freeze,

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impl<F, ExternalPerm, InternalPerm, const WIDTH: usize, const D: u64> RefUnwindSafe for Poseidon2<F, ExternalPerm, InternalPerm, WIDTH, D>
where ExternalPerm: RefUnwindSafe, InternalPerm: RefUnwindSafe, F: RefUnwindSafe,

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impl<F, ExternalPerm, InternalPerm, const WIDTH: usize, const D: u64> Send for Poseidon2<F, ExternalPerm, InternalPerm, WIDTH, D>
where ExternalPerm: Send, InternalPerm: Send, F: Send,

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impl<F, ExternalPerm, InternalPerm, const WIDTH: usize, const D: u64> Sync for Poseidon2<F, ExternalPerm, InternalPerm, WIDTH, D>
where ExternalPerm: Sync, InternalPerm: Sync, F: Sync,

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impl<F, ExternalPerm, InternalPerm, const WIDTH: usize, const D: u64> Unpin for Poseidon2<F, ExternalPerm, InternalPerm, WIDTH, D>
where ExternalPerm: Unpin, InternalPerm: Unpin, F: Unpin,

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impl<F, ExternalPerm, InternalPerm, const WIDTH: usize, const D: u64> UnwindSafe for Poseidon2<F, ExternalPerm, InternalPerm, WIDTH, D>
where ExternalPerm: UnwindSafe, InternalPerm: UnwindSafe, F: 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, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> 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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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn deref<'a>(ptr: usize) -> &'a T

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unsafe fn drop(ptr: usize)

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where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
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fn vzip(self) -> V

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

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