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Update to hash-to-curve draft 16, with some API adjustments #90

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merged 6 commits into from
Jul 21, 2024
Merged

Update to hash-to-curve draft 16, with some API adjustments #90

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4b4e7f8
update expand_message API
andrewwhitehead Jun 30, 2022
db71a01
only implement Message for iterators
andrewwhitehead Aug 8, 2022
eb3f0a9
Document `L` generic of `ExpandMessage::init_expand`
str4d Jul 21, 2024
cf264e6
Add missing `len_in_bytes` check to `ExpandMsgXmd::init_expand`
str4d Jul 21, 2024
9a81247
Remove `pub` qualifiers from non-pub `ExpandMsgDst`
str4d Jul 21, 2024
09466e0
Require `ExpandMsgXmd<H>` has `H::OutputSize < 256` instead of trunca…
str4d Jul 21, 2024
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8 changes: 4 additions & 4 deletions Cargo.lock
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4 changes: 2 additions & 2 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ rustdoc-args = [ "--html-in-header", "katex-header.html" ]
[dev-dependencies]
csv = ">= 1.0, < 1.2" # csv 1.2 has MSRV 1.60
criterion = "0.3"
hex = "0.4"
hex-literal = "0.3"
rand_xorshift = "0.3"
sha2 = "0.9"
sha3 = "0.9"
Expand Down Expand Up @@ -69,7 +69,7 @@ bits = ["ff/bits"]
groups = ["group"]
pairings = ["groups", "pairing"]
alloc = ["group/alloc"]
experimental = ["digest"]
experimental = ["digest", "groups"]
nightly = ["subtle/nightly"]

[[test]]
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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -21,7 +21,7 @@ If you want to propose "substantial" changes to this crate, please
* `alloc` (on by default): Enables APIs that require an allocator; these include pairing optimizations.
* `nightly`: Enables `subtle/nightly` which tries to prevent compiler optimizations that could jeopardize constant time operations. Requires the nightly Rust compiler.
* `experimental`: Enables experimental features. These features have no backwards-compatibility guarantees and may change at any time; users that depend on specific behaviour should pin an exact version of this crate. The current list of experimental features:
* Hashing to curves ([Internet Draft v12](https://datatracker.ietf.org/doc/html/draft-irtf-cfrg-hash-to-curve-12))
* Hashing to curves ([Internet Draft v16](https://datatracker.ietf.org/doc/html/draft-irtf-cfrg-hash-to-curve-16))

## [Documentation](https://docs.rs/bls12_381)

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8 changes: 4 additions & 4 deletions benches/hash_to_curve.rs
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Expand Up @@ -20,7 +20,7 @@ fn criterion_benchmark(c: &mut Criterion) {
move |b| {
b.iter(|| {
<G1Projective as HashToCurve<ExpandMsgXmd<sha2::Sha256>>>::encode_to_curve(
black_box(message),
[black_box(message)],
black_box(dst),
)
})
Expand All @@ -29,7 +29,7 @@ fn criterion_benchmark(c: &mut Criterion) {
c.bench_function(&format!("{} hash_to_curve SSWU SHA-256", name), move |b| {
b.iter(|| {
<G1Projective as HashToCurve<ExpandMsgXmd<sha2::Sha256>>>::hash_to_curve(
black_box(message),
[black_box(message)],
black_box(dst),
)
})
Expand All @@ -47,7 +47,7 @@ fn criterion_benchmark(c: &mut Criterion) {
move |b| {
b.iter(|| {
<G2Projective as HashToCurve<ExpandMsgXmd<sha2::Sha256>>>::encode_to_curve(
black_box(message),
[black_box(message)],
black_box(dst),
)
})
Expand All @@ -56,7 +56,7 @@ fn criterion_benchmark(c: &mut Criterion) {
c.bench_function(&format!("{} hash_to_curve SSWU SHA-256", name), move |b| {
b.iter(|| {
<G2Projective as HashToCurve<ExpandMsgXmd<sha2::Sha256>>>::hash_to_curve(
black_box(message),
[black_box(message)],
black_box(dst),
)
})
Expand Down
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