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BatchVerifier

Struct BatchVerifier 

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pub struct BatchVerifier<S: RingSuite> { /* private fields */ }
Expand description

Batch verifier for ring VRF proofs.

Collects multiple ring proofs and verifies them together, amortizing the cost of pairing checks and multi-scalar multiplications.

The same subgroup membership assumptions as Verifier apply to all points fed into the batch (I/O pairs and proof points).

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impl<S: RingSuite> BatchVerifier<S>

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pub fn new(ring_verifier: RingVerifier<S>) -> Self

Create a new batch verifier from a ring verifier instance.

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pub fn prepare( &self, ios: impl AsRef<[VrfIo<S>]>, ad: impl AsRef<[u8]>, proof: &Proof<S>, ) -> BatchItem<S>

Prepare a proof for deferred batch verification.

Performs the cheap per-proof work (hashing, transcript setup) without the expensive pairing and MSM checks.

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pub fn push_prepared(&mut self, item: BatchItem<S>)

Push a previously prepared item into the batch.

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pub fn push( &mut self, ios: impl AsRef<[VrfIo<S>]>, ad: impl AsRef<[u8]>, proof: &Proof<S>, )

Prepare and push a proof in one step.

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pub fn verify(&self) -> Result<(), Error>

Verify all collected proofs in a single batch.

Checks both the Pedersen proofs (via MSM) and the ring proofs (via pairing). Returns Ok(()) if all proofs verify, Err(VerificationFailure) otherwise.

Auto Trait Implementations§

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impl<S> Freeze for BatchVerifier<S>

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impl<S> RefUnwindSafe for BatchVerifier<S>

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impl<S> Send for BatchVerifier<S>
where <<S as Suite>::Affine as AffineRepr>::Config: Sized, <<S as Suite>::Affine as AffineRepr>::BaseField: Sized, <S as Suite>::Affine: Sized, <<S as RingSuite>::Pairing as Pairing>::ScalarField == <<S as Suite>::Affine as AffineRepr>::BaseField,

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impl<S> Sync for BatchVerifier<S>
where <<S as Suite>::Affine as AffineRepr>::Config: Sized, <<S as Suite>::Affine as AffineRepr>::BaseField: Sized, <S as Suite>::Affine: Sized, <<S as RingSuite>::Pairing as Pairing>::ScalarField == <<S as Suite>::Affine as AffineRepr>::BaseField,

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impl<S> Unpin for BatchVerifier<S>

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impl<S> UnsafeUnpin for BatchVerifier<S>

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impl<S> UnwindSafe for BatchVerifier<S>

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

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

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impl<T> From<T> for T

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fn from(t: T) -> T

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type Output = T

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type Error = Infallible

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

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