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Remove BLAKE2B_PERSONALIZATION constant.

This commit is contained in:
Sean Bowe 2021-02-22 15:53:22 -07:00
parent 5503517ac1
commit 1078f854e3
No known key found for this signature in database
GPG Key ID: 95684257D8F8B031
3 changed files with 3 additions and 12 deletions
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4
src/arithmetic/curves.rs
View File

@ -96,10 +96,6 @@ pub trait CurveAffine:
/// The projective form of the curve
type CurveExt: CurveExt<AffineExt = Self, ScalarExt = <Self as CurveAffine>::ScalarExt>;
/// Personalization of BLAKE2b hasher used to generate the uniform
/// random string.
const BLAKE2B_PERSONALIZATION: &'static [u8; 16];
/// CURVE_ID used for hash-to-curve.
const CURVE_ID: &'static str;

7
src/pasta/curves.rs
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@ -17,7 +17,7 @@ use super::{Fp, Fq};
use crate::arithmetic::{CurveAffine, CurveExt, FieldExt, Group};
macro_rules! new_curve_impl {
(($($privacy:tt)*), $name:ident, $name_affine:ident, $iso:ident, $base:ident, $scalar:ident, $blake2b_personalization:literal,
(($($privacy:tt)*), $name:ident, $name_affine:ident, $iso:ident, $base:ident, $scalar:ident,
$curve_id:literal, $a_raw:expr, $b_raw:expr, $curve_type:ident) => {
/// Represents a point in the projective coordinate space.
#[derive(Copy, Clone, Debug)]
@ -615,7 +615,6 @@ macro_rules! new_curve_impl {
type Base = $base;
type CurveExt = $name;
const BLAKE2B_PERSONALIZATION: &'static [u8; 16] = $blake2b_personalization;
const CURVE_ID: &'static str = $curve_id;
fn is_on_curve(&self) -> Choice {
@ -911,7 +910,6 @@ new_curve_impl!(
IsoEp,
Fp,
Fq,
b"halo2_____pallas",
"pallas",
[0, 0, 0, 0],
[5, 0, 0, 0],
@ -924,7 +922,6 @@ new_curve_impl!(
IsoEq,
Fq,
Fp,
b"halo2______vesta",
"vesta",
[0, 0, 0, 0],
[5, 0, 0, 0],
@ -937,7 +934,6 @@ new_curve_impl!(
Ep,
Fp,
Fq,
b"halo2_iso_pallas",
"iso-pallas",
[
0x92bb4b0b657a014b,
@ -955,7 +951,6 @@ new_curve_impl!(
Eq,
Fq,
Fp,
b"halo2__iso_vesta",
"iso-vesta",
[
0xc515ad7242eaa6b1,

4
src/transcript.rs
View File

@ -59,7 +59,7 @@ impl<R: Read, C: CurveAffine> Blake2bRead<R, C> {
Blake2bRead {
state: Blake2bParams::new()
.hash_length(64)
.personal(C::BLAKE2B_PERSONALIZATION)
.personal(b"Halo2-Transcript")
.to_state(),
reader,
_marker: PhantomData,
@ -136,7 +136,7 @@ impl<W: Write, C: CurveAffine> Blake2bWrite<W, C> {
Blake2bWrite {
state: Blake2bParams::new()
.hash_length(64)
.personal(C::BLAKE2B_PERSONALIZATION)
.personal(b"Halo2-Transcript")
.to_state(),
writer,
_marker: PhantomData,