light_poseidon

Struct Poseidon

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pub struct Poseidon<F: PrimeField> { /* private fields */ }
Expand description

A stateful sponge performing Poseidon hash computation.

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impl<F: PrimeField> Poseidon<F>

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pub fn new(params: PoseidonParameters<F>) -> Self

Returns a new Poseidon hasher based on the given parameters.

Optionally, a domain tag can be provided. If it is not provided, it will be set to zero.

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impl<F: PrimeField> Poseidon<F>

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pub fn new_circom(nr_inputs: usize) -> Result<Poseidon<Fr>, PoseidonError>

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pub fn with_domain_tag_circom( nr_inputs: usize, domain_tag: Fr, ) -> Result<Poseidon<Fr>, PoseidonError>

Trait Implementations§

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impl<F: PrimeField> PoseidonBytesHasher for Poseidon<F>

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fn hash_bytes_le(&mut self, inputs: &[&[u8]]) -> Result<[u8; 32], PoseidonError>

Calculates a Poseidon hash for the given input of little-endian byte slices and returns the result as a byte array. Read more
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fn hash_bytes_be(&mut self, inputs: &[&[u8]]) -> Result<[u8; 32], PoseidonError>

Calculates a Poseidon hash for the given input of big-endian byte slices and returns the result as a byte array. Read more
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impl<F: PrimeField> PoseidonHasher<F> for Poseidon<F>

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fn hash(&mut self, inputs: &[F]) -> Result<F, PoseidonError>

Calculates a Poseidon hash for the given input of prime fields and returns the result as a prime field. Read more

Auto Trait Implementations§

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impl<F> Freeze for Poseidon<F>
where F: Freeze,

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impl<F> RefUnwindSafe for Poseidon<F>
where F: RefUnwindSafe,

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impl<F> Send for Poseidon<F>

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impl<F> Sync for Poseidon<F>

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impl<F> Unpin for Poseidon<F>
where F: Unpin,

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impl<F> UnwindSafe for Poseidon<F>
where F: UnwindSafe,

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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> 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<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> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<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
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion 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
where V: MultiLane<T>,

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fn vzip(self) -> V