Struct ark_poly_commit::sonic_pc::CommitterKey

pub struct CommitterKey<E: PairingEngine> {
    pub powers_of_g: Vec<E::G1Affine>,
    pub powers_of_gamma_g: Vec<E::G1Affine>,
    pub shifted_powers_of_g: Option<Vec<E::G1Affine>>,
    pub shifted_powers_of_gamma_g: Option<BTreeMap<usize, Vec<E::G1Affine>>>,
    pub enforced_degree_bounds: Option<Vec<usize>>,
    pub max_degree: usize,
}

ComitterKey is used to commit to, and create evaluation proofs for, a given polynomial.

Fields

powers_of_g: Vec<E::G1Affine>

The key used to commit to polynomials.

powers_of_gamma_g: Vec<E::G1Affine>

The key used to commit to hiding polynomials.

shifted_powers_of_g: Option<Vec<E::G1Affine>>

The powers used to commit to shifted polynomials. This is None if self does not support enforcing any degree bounds.

shifted_powers_of_gamma_g: Option<BTreeMap<usize, Vec<E::G1Affine>>>

The powers used to commit to shifted hiding polynomials. This is None if self does not support enforcing any degree bounds.

enforced_degree_bounds: Option<Vec<usize>>

The degree bounds that are supported by self. Sorted in ascending order from smallest bound to largest bound. This is None if self does not support enforcing any degree bounds.

max_degree: usize

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

Implementations

impl<E: PairingEngine> CommitterKey<E>

pub fn powers(&self) -> Powers<'_, E>

Obtain powers for the underlying KZG10 construction

pub fn shifted_powers(
    &self,
    degree_bound: impl Into<Option<usize>>
) -> Option<Powers<'_, E>>

Obtain powers for committing to shifted polynomials.

Trait Implementations

impl<E: PairingEngine> CanonicalDeserialize for CommitterKey<E>

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

Reads Self from reader.

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

Reads Self from reader without compression.

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

Reads self from reader without compression, and without performing validity checks. Should be used only when the input is trusted.

impl<E: PairingEngine> CanonicalSerialize for CommitterKey<E>

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

Serializes self into writer. It is left up to a particular type for how it strikes the serialization efficiency vs compression tradeoff. For standard types (e.g. bool, lengths, etc.) typically an uncompressed form is used, whereas for algebraic types compressed forms are used.

fn serialized_size(&self) -> usize

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

Serializes self into writer without compression.

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

Serializes self into writer without compression, and without performing validity checks. Should be used only when there is no danger of adversarial manipulation of the output.

fn uncompressed_size(&self) -> usize

impl<E: PairingEngine> Clone for CommitterKey<E>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<E: PairingEngine> Debug for CommitterKey<E>

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

Formats the value using the given formatter.

impl<E: PairingEngine> Default for CommitterKey<E>

fn default() -> Self

Returns the “default value” for a type.

impl<E: PairingEngine> Hash for CommitterKey<E>

fn hash<__HE>(&self, __state: &mut __HE) where
    __HE: Hasher, 

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<E: PairingEngine> PCCommitterKey for CommitterKey<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 committer key.