folding::instance_witness

Struct RelaxedInstance

pub struct RelaxedInstance<G: CommitmentCurve, I: Instance<G>> {
    pub extended_instance: ExtendedInstance<G, I>,
    pub u: G::ScalarField,
    pub error_commitment: PolyComm<G>,
    pub blinder: G::ScalarField,
}

Expand description

A relaxed instance is an instance that has been relaxed by the folding scheme. It contains the original instance, extended with the columns added by quadriticization, the scalar u and a commitment to the slack/error term. See page 15 of Nova.

Fields§

§extended_instance: ExtendedInstance<G, I>

The original instance, extended with the columns added by quadriticization

§u: G::ScalarField

The scalar u that is used to homogenize the polynomials

§error_commitment: PolyComm<G>

The commitment to the error term, introduced when homogenizing the polynomials

§blinder: G::ScalarField

Blinder used for the commitments to the cross terms

Implementations§

impl<G: CommitmentCurve, I: Instance<G>> RelaxedInstance<G, I>

pub fn to_absorb(&self) -> (Vec<G::ScalarField>, Vec<G>)

Returns the elements to be absorbed by the sponge

The scalar elements of the are appended with the scalar u and the commitments are appended by the commitment to the error term.

pub fn get_extended_column_commitment(&self, i: usize) -> Option<&PolyComm<G>>

Provides access to commitments to the extra columns added by quadraticization

Trait Implementations§

impl<G: Clone + CommitmentCurve, I: Clone + Instance<G>> Clone for RelaxedInstance<G, I>
where G::ScalarField: Clone,

fn clone(&self) -> RelaxedInstance<G, I>

Returns a copy of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl<G: CommitmentCurve, I: Instance<G>> Foldable<<G as AffineRepr>::ScalarField> for RelaxedInstance<G, I>

A relaxed instance can be folded.

fn combine(a: Self, b: Self, challenge: G::ScalarField) -> Self

Combine two relaxed instances into a new relaxed instance.

impl<G: PartialEq + CommitmentCurve, I: PartialEq + Instance<G>> PartialEq for RelaxedInstance<G, I>
where G::ScalarField: PartialEq,

fn eq(&self, other: &RelaxedInstance<G, I>) -> bool

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<G: CommitmentCurve, I: Instance<G>> RelaxableInstance<G, I> for RelaxedInstance<G, I>

A relaxed instance is trivially relaxable.

fn relax(self) -> RelaxedInstance<G, I>

impl<G: Eq + CommitmentCurve, I: Eq + Instance<G>> Eq for RelaxedInstance<G, I>
where G::ScalarField: Eq,

impl<G: CommitmentCurve, I: Instance<G>> StructuralPartialEq for RelaxedInstance<G, I>

Auto Trait Implementations§

impl<G, I> Freeze for RelaxedInstance<G, I>
where <G as AffineRepr>::ScalarField: Freeze, I: Freeze,

impl<G, I> RefUnwindSafe for RelaxedInstance<G, I>
where <G as AffineRepr>::ScalarField: RefUnwindSafe, I: RefUnwindSafe, G: RefUnwindSafe,

impl<G, I> Send for RelaxedInstance<G, I>
where I: Send,

impl<G, I> Sync for RelaxedInstance<G, I>
where I: Sync,

impl<G, I> Unpin for RelaxedInstance<G, I>
where <G as AffineRepr>::ScalarField: Unpin, I: Unpin, G: Unpin,

impl<G, I> UnwindSafe for RelaxedInstance<G, I>
where <G as AffineRepr>::ScalarField: UnwindSafe, I: UnwindSafe, G: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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

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

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

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

Checks if this value is equivalent to the given key. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

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

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

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

impl<T> Same for T

type Output = T

Should always be Self

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V