Struct snarkvm_wasm::algorithms::crh::PedersenCRHGadget[−][src]

pub struct PedersenCRHGadget<G, F, GG> where
    G: Group,
    F: Field,
    GG: GroupGadget<G, F>,  { /* fields omitted */ }

Trait Implementations

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impl<F, G, GG, S> CRHGadget<PedersenCRH<G, S>, F> for PedersenCRHGadget<G, F, GG> where
    G: Group,
    S: PedersenSize,
    F: Field,
    GG: GroupGadget<G, F>,

type OutputGadget = GG

type ParametersGadget = PedersenCRHParametersGadget<G, S, F, GG>

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pub fn check_evaluation_gadget<CS>(
    cs: CS, 
    parameters: &<PedersenCRHGadget<G, F, GG> as CRHGadget<PedersenCRH<G, S>, F>>::ParametersGadget, 
    input: Vec<UInt8, Global>
) -> Result<<PedersenCRHGadget<G, F, GG> as CRHGadget<PedersenCRH<G, S>, F>>::OutputGadget, SynthesisError> where
    CS: ConstraintSystem<F>,

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impl<G, F, GG> Clone for PedersenCRHGadget<G, F, GG> where
    G: Clone + Group,
    F: Clone + Field,
    GG: Clone + GroupGadget<G, F>,

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pub fn clone(&self) -> PedersenCRHGadget<G, F, GG>

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<G, F, GG> Debug for PedersenCRHGadget<G, F, GG> where
    G: Debug + Group,
    F: Debug + Field,
    GG: Debug + GroupGadget<G, F>,

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

Formats the value using the given formatter. Read more

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impl<F, G, GG, S> MaskedCRHGadget<PedersenCRH<G, S>, F> for PedersenCRHGadget<G, F, GG> where
    G: Group,
    S: PedersenSize,
    F: PrimeField,
    GG: GroupGadget<G, F>,

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pub fn check_evaluation_gadget_masked<CS>(
    cs: CS, 
    parameters: &<PedersenCRHGadget<G, F, GG> as CRHGadget<PedersenCRH<G, S>, F>>::ParametersGadget, 
    input: Vec<UInt8, Global>, 
    mask_parameters: &<PedersenCRHGadget<G, F, GG> as CRHGadget<PedersenCRH<G, S>, F>>::ParametersGadget, 
    mask: Vec<UInt8, Global>
) -> Result<<PedersenCRHGadget<G, F, GG> as CRHGadget<PedersenCRH<G, S>, F>>::OutputGadget, SynthesisError> where
    CS: ConstraintSystem<F>,

Evaluates a masked Pedersen hash on the given input using the given mask. The algorithm is based on the description in https://eprint.iacr.org/2020/190.pdf, which relies on the homomorphic properties of Pedersen hashes. First, the mask is extended to ensure constant hardness - for each bit, 0 => 01, 1 => 10. Then, denoting input bits as m_i, mask bits as p_i and bases as h_i, computes sum of (g_i * 1[p_i = 0] + g_i^{-1} * 1[p_i = 1])^{m_i \xor p_i} for all i. Finally, the hash of the mask itself, being sum of h_i^{p_i} for all i, is added to the computed sum. This algorithm ensures that each bit in the hash is affected by the mask and that the final hash remains the same as if no mask was used.

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fn extend_mask<CS>(
    CS, 
    mask: &[UInt8]
) -> Result<Vec<UInt8, Global>, SynthesisError> where
    CS: ConstraintSystem<F>,

Extends the mask such that 0 => 01, 1 => 10.

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impl<G, F, GG> PartialEq<PedersenCRHGadget<G, F, GG>> for PedersenCRHGadget<G, F, GG> where
    G: PartialEq<G> + Group,
    F: PartialEq<F> + Field,
    GG: PartialEq<GG> + GroupGadget<G, F>,

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pub fn eq(&self, other: &PedersenCRHGadget<G, F, GG>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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pub fn ne(&self, other: &PedersenCRHGadget<G, F, GG>) -> bool

This method tests for !=.

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impl<G, F, GG> Eq for PedersenCRHGadget<G, F, GG> where
    G: Eq + Group,
    F: Eq + Field,
    GG: Eq + GroupGadget<G, F>,

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impl<G, F, GG> StructuralEq for PedersenCRHGadget<G, F, GG> where
    G: Group,
    F: Field,
    GG: GroupGadget<G, F>,

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impl<G, F, GG> StructuralPartialEq for PedersenCRHGadget<G, F, GG> where
    G: Group,
    F: Field,
    GG: GroupGadget<G, F>,

Auto Trait Implementations

impl<G, F, GG> RefUnwindSafe for PedersenCRHGadget<G, F, GG> where
    F: RefUnwindSafe,
    G: RefUnwindSafe,
    GG: RefUnwindSafe,

impl<G, F, GG> !Send for PedersenCRHGadget<G, F, GG>

impl<G, F, GG> !Sync for PedersenCRHGadget<G, F, GG>

impl<G, F, GG> Unpin for PedersenCRHGadget<G, F, GG> where
    F: Unpin,

impl<G, F, GG> UnwindSafe for PedersenCRHGadget<G, F, GG> where
    F: UnwindSafe,
    G: RefUnwindSafe,
    GG: RefUnwindSafe,

Blanket Implementations

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

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

Mutably borrows from an owned value. Read more

impl<T> Conv for T

fn conv<T>(self) -> T where
    Self: Into<T>,

Converts self into T using Into<T>. Read more

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impl<Q, K> Equivalent<K> for Q where
    K: Borrow<Q> + ?Sized,
    Q: Eq + ?Sized,

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pub fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<T> FmtForward for T

fn fmt_binary(self) -> FmtBinary<Self> where
    Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.

fn fmt_display(self) -> FmtDisplay<Self> where
    Self: Display,

Causes self to use its Display implementation when Debug-formatted. Read more

fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
    Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted. Read more

fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
    Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted. Read more

fn fmt_octal(self) -> FmtOctal<Self> where
    Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.

fn fmt_pointer(self) -> FmtPointer<Self> where
    Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted. Read more

fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
    Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted. Read more

fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
    Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted. Read more

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impl<T> From<T> for T

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pub fn from(t: T) -> T

Performs the conversion.

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

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pub fn into(self) -> U

Performs the conversion.

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

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R

Pipes by value. This is generally the method you want to use. Read more

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
    R: 'a,

Borrows self and passes that borrow into the pipe function. Read more

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    R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more

fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R where
    Self: Borrow<B>,
    B: 'a + ?Sized,
    R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more

fn pipe_borrow_mut<'a, B, R>(
    &'a mut self, 
    func: impl FnOnce(&'a mut B) -> R
) -> R where
    Self: BorrowMut<B>,
    B: 'a + ?Sized,
    R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more

fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R where
    Self: AsRef<U>,
    R: 'a,
    U: 'a + ?Sized,

Borrows self, then passes self.as_ref() into the pipe function.

fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R where
    Self: AsMut<U>,
    R: 'a,
    U: 'a + ?Sized,

Mutably borrows self, then passes self.as_mut() into the pipe function. Read more

fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
    Self: Deref<Target = T>,
    T: 'a + ?Sized,
    R: 'a,

Borrows self, then passes self.deref() into the pipe function.

fn pipe_deref_mut<'a, T, R>(
    &'a mut self, 
    func: impl FnOnce(&'a mut T) -> R
) -> R where
    Self: DerefMut<Target = T> + Deref,
    T: 'a + ?Sized,
    R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function. Read more

impl<T> Pointable for T

pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

pub unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> Tap for T

fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more

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Mutable access to a value. Read more

fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self where
    Self: Borrow<B>,
    B: ?Sized,

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    Self: BorrowMut<B>,
    B: ?Sized,

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    R: ?Sized,

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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self where
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self where
    Self: Deref<Target = T>,
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    Self: DerefMut<Target = T> + Deref,
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Calls .tap() only in debug builds, and is erased in release builds.

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    Self: Borrow<B>,
    B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds. Read more

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    B: ?Sized,

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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
    Self: AsMut<R>,
    R: ?Sized,

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    Self: Deref<Target = T>,
    T: ?Sized,

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    Self: DerefMut<Target = T> + Deref,
    T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds. Read more

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

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

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

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

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fn try_conv<T>(self) -> Result<T, Self::Error> where
    Self: TryInto<T>,

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impl<T, U> TryFrom<U> for T where
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type Error = Infallible

The type returned in the event of a conversion error.

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Performs the conversion.

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type Error = >::Error

The type returned in the event of a conversion error.

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pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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pub fn vzip(self) -> V