tornado-packages/phase2-bn254
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introduce error handling

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This commit is contained in:
Alex Vlasov 2019-02-07 17:25:24 +03:00
parent 056b7873cc
commit 614d486b99
1 changed files with 11 additions and 11 deletions
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22
src/sonic/helped/prover.rs
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@ -20,7 +20,7 @@ pub fn create_advice_on_information_and_srs<E: Engine, C: Circuit<E>, S: Synthes
proof: &Proof<E>,
srs: &SRS<E>,
n: usize
) -> SxyAdvice<E>
) -> Result<SxyAdvice<E>, SynthesisError>
{
let z: E::Fr;
let y: E::Fr;
@ -31,11 +31,11 @@ pub fn create_advice_on_information_and_srs<E: Engine, C: Circuit<E>, S: Synthes
transcript.commit_point(&proof.t);
z = transcript.get_challenge_scalar();
}
let z_inv = z.inverse().unwrap(); // TODO
let z_inv = z.inverse().ok_or(SynthesisError::DivisionByZero)?;
let (s_poly_negative, s_poly_positive) = {
let mut tmp = SxEval::new(y, n);
S::synthesize(&mut tmp, circuit).unwrap(); // TODO
S::synthesize(&mut tmp, circuit)?;
tmp.poly()
};
@ -87,18 +87,18 @@ pub fn create_advice_on_information_and_srs<E: Engine, C: Circuit<E>, S: Synthes
).into_affine()
};
SxyAdvice {
Ok(SxyAdvice {
s,
szy,
opening
}
})
}
pub fn create_advice<E: Engine, C: Circuit<E>, S: SynthesisDriver>(
circuit: &C,
proof: &Proof<E>,
parameters: &Parameters<E>,
) -> SxyAdvice<E>
) -> Result<SxyAdvice<E>, SynthesisError>
{
let n = parameters.vk.n;
create_advice_on_information_and_srs::<E, C, S>(circuit, proof, &parameters.srs, n)
@ -108,7 +108,7 @@ pub fn create_advice_on_srs<E: Engine, C: Circuit<E>, S: SynthesisDriver>(
circuit: &C,
proof: &Proof<E>,
srs: &SRS<E>
) -> SxyAdvice<E>
) -> Result<SxyAdvice<E>, SynthesisError>
{
// annoying, but we need n to compute s(z, y), and this isn't
// precomputed anywhere yet
@ -124,7 +124,7 @@ pub fn create_advice_on_srs<E: Engine, C: Circuit<E>, S: SynthesisDriver>(
}
let mut tmp = CountN{n:0};
S::synthesize(&mut tmp, circuit).unwrap(); // TODO
S::synthesize(&mut tmp, circuit)?;
tmp.n
};
@ -216,7 +216,7 @@ pub fn create_proof<E: Engine, C: Circuit<E>, S: SynthesisDriver>(
rx1.extend(wires.a);
let mut rxy = rx1.clone();
let y_inv = y.inverse().unwrap(); // TODO
let y_inv = y.inverse().ok_or(SynthesisError::DivisionByZero)?;
let mut tmp = y.pow(&[n as u64]);
for rxy in rxy.iter_mut().rev() {
@ -226,7 +226,7 @@ pub fn create_proof<E: Engine, C: Circuit<E>, S: SynthesisDriver>(
let (s_poly_negative, s_poly_positive) = {
let mut tmp = SxEval::new(y, n);
S::synthesize(&mut tmp, circuit).unwrap(); // TODO
S::synthesize(&mut tmp, circuit)?;
tmp.poly()
};
@ -262,7 +262,7 @@ pub fn create_proof<E: Engine, C: Circuit<E>, S: SynthesisDriver>(
transcript.commit_point(&t);
let z: E::Fr = transcript.get_challenge_scalar();
let z_inv = z.inverse().unwrap(); // TODO
let z_inv = z.inverse().ok_or(SynthesisError::DivisionByZero)?;
// TODO: use the faster way to evaluate the polynomials
let mut rz = E::Fr::zero();