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Merge pull request #322 from AleoHQ/feature/n-group-notation

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Feature/n group notation
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Howard Wu 2020-09-02 13:38:29 -07:00 committed by GitHub
commit 754725f5b7
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3 changed files with 16 additions and 8 deletions
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4
Cargo.lock generated
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@ -1398,9 +1398,9 @@ dependencies = [
[[package]] [[package]]
name = "libz-sys" name = "libz-sys"
version = "1.1.0" version = "1.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "af67924b8dd885cccea261866c8ce5b74d239d272e154053ff927dae839f5ae9" checksum = "23b34178653005c1181711c333f0e5604a14a1b5115c814fd42304bdd16245e0"
dependencies = [ dependencies = [
"cc", "cc",
"libc", "libc",

6
compiler/src/errors/value/group.rs
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@ -98,4 +98,10 @@ impl GroupError {
Self::new_from_span(message, span) Self::new_from_span(message, span)
} }
pub fn n_group(number: String, span: Span) -> Self {
let message = format!("cannot multiply group generator by \"{}\"", number);
Self::new_from_span(message, span)
}
} }

14
compiler/src/value/group/targets/edwards_bls12.rs
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@ -24,7 +24,7 @@ use snarkos_curves::{
use snarkos_errors::gadgets::SynthesisError; use snarkos_errors::gadgets::SynthesisError;
use snarkos_gadgets::curves::edwards_bls12::EdwardsBlsGadget; use snarkos_gadgets::curves::edwards_bls12::EdwardsBlsGadget;
use snarkos_models::{ use snarkos_models::{
curves::{AffineCurve, One, TEModelParameters, Zero}, curves::{AffineCurve, Fp256, One, TEModelParameters, Zero},
gadgets::{ gadgets::{
curves::{FieldGadget, FpGadget, GroupGadget}, curves::{FieldGadget, FpGadget, GroupGadget},
r1cs::ConstraintSystem, r1cs::ConstraintSystem,
@ -41,7 +41,7 @@ use snarkos_models::{
}; };
use std::{ use std::{
borrow::Borrow, borrow::Borrow,
ops::{Neg, Sub}, ops::{Mul, Neg, Sub},
str::FromStr, str::FromStr,
}; };
@ -142,12 +142,14 @@ impl EdwardsGroupType {
} }
pub fn edwards_affine_from_single(number: String, span: Span) -> Result<EdwardsAffine, GroupError> { pub fn edwards_affine_from_single(number: String, span: Span) -> Result<EdwardsAffine, GroupError> {
if number.eq("1") { if number.eq("0") {
return Ok(edwards_affine_one());
} else if number.eq("0") {
return Ok(EdwardsAffine::zero()); return Ok(EdwardsAffine::zero());
} else { } else {
Self::edwards_affine_from_x_str(number, span.clone(), None, span) let one = edwards_affine_one();
let number_value = Fp256::from_str(&number).map_err(|_| GroupError::n_group(number, span))?;
let result: EdwardsAffine = one.mul(&number_value);
return Ok(result);
} }
} }