pub struct CircomReduction;Expand description
Implements the witness map used by snarkjs. The arkworks witness map calculates the coefficients of H through computing (AB-C)/Z in the evaluation domain and going back to the coefficients domain. snarkjs instead precomputes the Lagrange form of the powers of tau bases in a domain twice as large and the witness map is computed as the odd coefficients of (AB-C) in that domain. This serves as HZ when computing the C proof element.
Trait Implementations§
Source§impl R1CSToQAP for CircomReduction
impl R1CSToQAP for CircomReduction
Source§fn instance_map_with_evaluation<F: PrimeField, D: EvaluationDomain<F>>(
cs: ConstraintSystemRef<F>,
t: &F,
) -> Result<(Vec<F>, Vec<F>, Vec<F>, F, usize, usize), SynthesisError>
fn instance_map_with_evaluation<F: PrimeField, D: EvaluationDomain<F>>( cs: ConstraintSystemRef<F>, t: &F, ) -> Result<(Vec<F>, Vec<F>, Vec<F>, F, usize, usize), SynthesisError>
Computes a QAP instance corresponding to the R1CS instance defined by
cs.Source§fn witness_map_from_matrices<F: PrimeField, D: EvaluationDomain<F>>(
matrices: &ConstraintMatrices<F>,
num_inputs: usize,
num_constraints: usize,
full_assignment: &[F],
) -> Result<Vec<F>, SynthesisError>
fn witness_map_from_matrices<F: PrimeField, D: EvaluationDomain<F>>( matrices: &ConstraintMatrices<F>, num_inputs: usize, num_constraints: usize, full_assignment: &[F], ) -> Result<Vec<F>, SynthesisError>
Computes a QAP witness corresponding to the R1CS witness defined by
cs.Source§fn h_query_scalars<F: PrimeField, D: EvaluationDomain<F>>(
max_power: usize,
t: F,
_: F,
delta_inverse: F,
) -> Result<Vec<F>, SynthesisError>
fn h_query_scalars<F: PrimeField, D: EvaluationDomain<F>>( max_power: usize, t: F, _: F, delta_inverse: F, ) -> Result<Vec<F>, SynthesisError>
Computes the exponents that the generator uses to calculate base
elements which the prover later uses to compute
h(x)t(x)/delta.Source§fn witness_map<F, D>(
prover: ConstraintSystemRef<F>,
) -> Result<Vec<F>, SynthesisError>where
F: PrimeField,
D: EvaluationDomain<F>,
fn witness_map<F, D>(
prover: ConstraintSystemRef<F>,
) -> Result<Vec<F>, SynthesisError>where
F: PrimeField,
D: EvaluationDomain<F>,
Computes a QAP witness corresponding to the R1CS witness defined by
cs.Auto Trait Implementations§
impl Freeze for CircomReduction
impl RefUnwindSafe for CircomReduction
impl Send for CircomReduction
impl Sync for CircomReduction
impl Unpin for CircomReduction
impl UnwindSafe for CircomReduction
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