Struct Params 

pub struct Params { /* private fields */ }

System parameters for the Eyvara VRF scheme.

The fields are private; use EYVARA_128 or EYVARA_192. Custom parameters are not part of the public API because bad choices break security. Serialization is supported via the serde feature for inspection and logging purposes. Deserialization is intentionally not supported: parameter sets must be constructed via the provided constants EYVARA_128 and EYVARA_192.

fn assert_deserializable<T: serde::de::DeserializeOwned>() {}
assert_deserializable::<eyvara::params::Params>();

Implementations

impl Params

pub const fn n(&self) -> usize

Returns the ring dimension.

pub const fn k(&self) -> usize

Returns the module rank.

pub const fn q(&self) -> i64

Returns the modulus.

pub const fn eta(&self) -> i64

Returns the centered binomial distribution parameter.

pub const fn gamma_1(&self) -> i64

Returns the masking range bound.

pub const fn gamma_2(&self) -> i64

Returns the rounding divisor parameter.

pub const fn tau(&self) -> usize

Returns the number of nonzero challenge coefficients.

pub const fn beta(&self) -> i64

Returns beta = tau * eta.

pub const fn omega(&self) -> usize

Returns the maximum allowed hint weight.

pub const fn rejection_bound(&self) -> i64

Rejection sampling bound: gamma_1 - beta.

Trait Implementations

impl Clone for Params

fn clone(&self) -> Params

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Params

impl Debug for Params

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

Formats the value using the given formatter.

impl Eq for Params

impl PartialEq for Params

fn eq(&self, other: &Params) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Params