Struct VerifierKey 

pub struct VerifierKey<E: Pairing> {
    pub vk: VerifierKey<E>,
    pub degree_bounds_and_shift_powers: Option<Vec<(usize, E::G1Affine)>>,
    pub max_degree: usize,
    pub supported_degree: usize,
}

VerifierKey is used to check evaluation proofs for a given commitment.

Fields

vk: VerifierKey<E>

The verification key for the underlying KZG10 scheme.

degree_bounds_and_shift_powers: Option<Vec<(usize, E::G1Affine)>>

Information required to enforce degree bounds. Each pair is of the form (degree_bound, shifting_advice). The vector is sorted in ascending order of degree_bound. This is None if self does not support enforcing any degree bounds.

max_degree: usize

The maximum degree supported by the UniversalParams self was derived from.

supported_degree: usize

The maximum degree supported by the trimmed parameters that self is a part of.

Implementations

impl<E: Pairing> VerifierKey<E>

pub fn get_shift_power(&self, bound: usize) -> Option<E::G1Affine>

Find the appropriate shift for the degree bound.

Trait Implementations

impl<E: Pairing> CanonicalDeserialize for VerifierKey<E>

fn deserialize_with_mode<R: Read>( reader: R, compress: Compress, validate: Validate, ) -> Result<Self, SerializationError>

The general deserialize method that takes in customization flags.

fn deserialize_compressed<R>(reader: R) -> Result<Self, SerializationError>

where R: Read,

Reads Self from reader using the compressed form if applicable. Performs validation if applicable.

fn deserialize_compressed_unchecked<R>( reader: R, ) -> Result<Self, SerializationError>

where R: Read,

Reads Self from reader using the compressed form if applicable, without validating the deserialized value.

fn deserialize_uncompressed<R>(reader: R) -> Result<Self, SerializationError>

where R: Read,

Reads Self from reader using the uncompressed form. Performs validation if applicable.

fn deserialize_uncompressed_unchecked<R>( reader: R, ) -> Result<Self, SerializationError>

where R: Read,

Reads Self from reader using the uncompressed form, without validating the deserialized value.

impl<E: Pairing> CanonicalSerialize for VerifierKey<E>

fn serialize_with_mode<W: Write>( &self, writer: W, compress: Compress, ) -> Result<(), SerializationError>

The general serialize method that takes in customization flags.

fn serialized_size(&self, compress: Compress) -> usize

Returns the size in bytes of the serialized version of self with the given compression mode.

fn serialize_compressed<W>(&self, writer: W) -> Result<(), SerializationError>

where W: Write,

Serializes self into writer using the compressed form if applicable.

fn compressed_size(&self) -> usize

Returns the size in bytes of the compressed serialized version of self.

fn serialize_uncompressed<W>(&self, writer: W) -> Result<(), SerializationError>

where W: Write,

Serializes self into writer using the uncompressed form.

fn uncompressed_size(&self) -> usize

Returns the size in bytes of the uncompressed serialized version of self.

impl<E: Pairing> Clone for VerifierKey<E>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<E: Pairing> Debug for VerifierKey<E>

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

Formats the value using the given formatter.

impl<E: Pairing> Default for VerifierKey<E>

fn default() -> Self

Returns the “default value” for a type.

impl<E: Pairing> PCPreparedVerifierKey<VerifierKey<E>> for PreparedVerifierKey<E>

fn prepare(vk: &VerifierKey<E>) -> Self

prepare PreparedVerifierKey from VerifierKey

impl<E: Pairing> PCVerifierKey for VerifierKey<E>

fn max_degree(&self) -> usize

Outputs the maximum degree supported by the universal parameters Self was derived from.

fn supported_degree(&self) -> usize

Outputs the maximum degree supported by the verifier key.

impl<E: Pairing> ToConstraintField<<<E as Pairing>::TargetField as Field>::BasePrimeField> for VerifierKey<E>

where E::G1Affine: ToConstraintField<<E::TargetField as Field>::BasePrimeField>, E::G2Affine: ToConstraintField<<E::TargetField as Field>::BasePrimeField>,

fn to_field_elements( &self, ) -> Option<Vec<<E::TargetField as Field>::BasePrimeField>>

impl<E: Pairing> Valid for VerifierKey<E>

const TRIVIAL_CHECK: bool

Whether the check method is trivial (i.e. always returns Ok(())). If this is true, the batch_check method will skip all checks and return Ok(()). This should be set to true for types where check is trivial, e.g. integers, field elements, etc. This is false by default. This is primarily an optimization to skip unnecessary checks in batch_check.

fn check(&self) -> Result<(), SerializationError>

Checks whether self is valid. If self is valid, returns Ok(()). Otherwise, returns an error describing the failure. This method is called by deserialize_with_mode if validate is Validate::Yes.

fn batch_check<'a>( batch: impl Iterator<Item = &'a Self> + Send, ) -> Result<(), SerializationError>

where Self: 'a,

Checks whether all items in batch are valid. If all items are valid, returns Ok(()). Otherwise, returns an error describing the first failure.