Struct PowersOfG

pub struct PowersOfG<E: PairingEngine> { /* private fields */ }

A vector of powers of beta G.

Implementations

impl<E: PairingEngine> PowersOfG<E>

pub fn load() -> Result<Self>

Initializes the hard-coded instance of the powers.

pub fn download_powers_for(&self, range: Range<usize>) -> Result<()>

Download the powers of beta G specified by range.

pub fn num_powers(&self) -> usize

Returns the number of contiguous powers of beta G starting from the 0-th power.

pub fn max_num_powers(&self) -> usize

Returns the maximum possible number of contiguous powers of beta G starting from the 0-th power.

pub fn powers_of_beta_gamma_g(&self) -> &BTreeMap<usize, E::G1Affine>

Returns the powers of beta * gamma G.

pub fn power_of_beta_g(&self, index: usize) -> Result<E::G1Affine>

Returns the index-th power of beta * G.

pub fn powers_of_beta_g(&self, range: Range<usize>) -> Result<Vec<E::G1Affine>>

Returns the powers of beta * G that lie within range.

pub fn negative_powers_of_beta_h(&self) -> &BTreeMap<usize, E::G2Affine>

pub fn prepared_negative_powers_of_beta_h( &self, ) -> Arc<BTreeMap<usize, <E::G2Affine as PairingCurve>::Prepared>>

pub fn beta_h(&self) -> E::G2Affine

Trait Implementations

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

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

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

where R: Read,

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

where R: Read,

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

where R: Read,

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

where R: Read,

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

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

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

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

where W: Write,

fn compressed_size(&self) -> usize

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

where W: Write,

fn uncompressed_size(&self) -> usize

impl<E: Debug + PairingEngine> Debug for PowersOfG<E>

where E::G1Affine: Debug, E::G2Affine: Debug,

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

Formats the value using the given formatter.

impl<E: PairingEngine> FromBytes for PowersOfG<E>

fn read_le<R: Read>(reader: R) -> Result<Self>

Reads the powers from the buffer.

fn from_bytes_le(bytes: &[u8]) -> Result<Self, Error>

where Self: Sized,

Returns Self from a byte array in little-endian order.

impl<E: PairingEngine> ToBytes for PowersOfG<E>

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

Writes the powers to the buffer.

fn to_bytes_le(&self) -> Result<Vec<u8>, Error>

where Self: Sized,

Returns self as a byte array in little-endian order.

impl<E: PairingEngine> Valid for PowersOfG<E>

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

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

where Self: 'a,