Struct Public 

pub struct Public<S: Suite>(pub AffinePoint<S>);

Public key generic over the cipher suite.

Elliptic curve point representing the public component of a VRF key pair.

Tuple Fields

0: AffinePoint<S>

Implementations

impl<S: Suite> Public<S>

pub fn from_affine(value: AffinePoint<S>) -> Result<Self, Error>

Construct from an affine point with validation.

Returns Error::InvalidData if the point is not in the prime-order subgroup or is the group identity.

pub fn from_affine_unchecked(value: AffinePoint<S>) -> Self

Construct from an affine point without validation.

The caller must ensure value is in the prime-order subgroup and is not the group identity.

Trait Implementations

impl<S: Suite> CanonicalDeserialize for Public<S>

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<S: Suite> CanonicalSerialize for Public<S>

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<S: Clone + Suite> Clone for Public<S>

fn clone(&self) -> Public<S>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S: Copy + Suite> Copy for Public<S>

impl<S: Debug + Suite> Debug for Public<S>

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

Formats the value using the given formatter.

impl<S: PartialEq + Suite> PartialEq for Public<S>

fn eq(&self, other: &Public<S>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<S: PartialEq + Suite> StructuralPartialEq for Public<S>

impl<S: Suite> Valid for Public<S>

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.

const TRIVIAL_CHECK: bool = false

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 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.

impl<S: PedersenSuite> Verifier<S> for Public<S>

fn verify( ios: impl AsRef<[VrfIo<S>]>, ad: impl AsRef<[u8]>, proof: &Proof<S>, ) -> Result<(), Error>

Verify a proof for the given VRF I/O pairs and additional data.

impl<S: ThinSuite> Verifier<S> for Public<S>

fn verify( &self, ios: impl AsRef<[VrfIo<S>]>, ad: impl AsRef<[u8]>, proof: &Proof<S>, ) -> Result<(), Error>

Verify a proof for the given VRF I/O pairs and additional data.

impl<S: TinySuite> Verifier<S> for Public<S>

fn verify( &self, ios: impl AsRef<[VrfIo<S>]>, ad: impl AsRef<[u8]>, proof: &Proof<S>, ) -> Result<(), Error>

Tiny VRF verification algorithm.

1. Compute R = s * I_m - c * O_m
2. Recompute the expected challenge c_exp
3. Verify that c_exp == c

impl<S: RingSuite> Verifier<S> for Public<S>

fn verify( ios: impl AsRef<[VrfIo<S>]>, ad: impl AsRef<[u8]>, proof: &Proof<S>, verifier: &RingVerifier<S>, ) -> Result<(), Error>

Verify a proof for the given VRF I/O pairs and additional data.