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RELEASES.md

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Unreleased

0.8.0

Changed

  • Bumped dependencies to ff 0.13, group 0.13, pairing 0.23.

0.7.1

Added

  • Mul implementations for {G1Affine, G1Projective, G2Affine, G2Projective} with Scalar on the left-hand side. These enable code to be written matching equations that use the additive notation [a] P.
  • Zeroization support for Gt.

0.7.0

Changed

  • MSRV bumped to 1.56.0
  • Bumped dependencies to ff 0.12, group 0.12, pairing 0.22.

0.6.1

Changed

  • G2 arithmetic is now 25-30% faster across the board.
  • Pairings are now 10-15% faster.

0.6.0

Fixed

  • bls12_381::Gt::default() now returns Gt::identity() instead of a nonsensical value.

Added

  • Zeroization support for most public types, behind the zeroize feature flag.
  • bls12_381::MillerLoopResult trait implementations:
    • Default
    • AddAssign<MillerLoopResult>
    • AddAssign<&MillerLoopResult>

Changed

  • Bumped dependencies to ff 0.11, group 0.11, pairing 0.21.

Removed

  • The deprecated endo feature flag.

0.5.0

Added

  • bits feature flag (on by default) that exposes an ff::PrimeFieldBits implementation on bls12_381::Scalar.
  • experimental feature flag, for features have no backwards-compatibility guarantees and may change at any time.
  • Hashing to curves (Internet Draft v11), behind the experimental feature flag.

Changed

  • Bumped dependencies to ff 0.10, group 0.10, pairing 0.20.
  • MSRV is now 1.51.0.

0.4.0

Changed

  • Bumped dependencies to ff 0.9, group 0.9, pairing 0.19, rand_core 0.6.
  • The endo feature is on by default. The endo feature flag itself is deprecated, and will be removed in a future minor release.
  • MSRV is now 1.47.0.

0.3.1

Fixed

  • The crate now compiles for non-64-bit targets, such as the wasm32-* targets.

0.3.0

Changed

  • Migrated to ff 0.8, group 0.8, and pairing 0.18.
  • MSRV is now 1.44.0.
  • Switched to complete addition formulas for G1/G2.

0.2.0

This release adds implementations of the ff, group, and pairing traits (with the latter two being gated by the groups and pairings feature flags respectively). Additional trait implementations (for standard traits) have been added where the ff, group, and pairing trait bounds require them.

Added

  • bls12_381::Bls12, a pairing::Engine for BLS12-381 pairing operations. It implements the following traits:
    • pairing::{Engine, MultiMillerLoop}
  • New trait implementations for bls12_381::G1Projective:
    • group::{Curve, Group, GroupEncoding, WnafGroup}
    • group::prime::{PrimeCurve, PrimeGroup}
  • New trait implementations for bls12_381::G1Affine:
    • group::{GroupEncoding, UncompressedEncoding}
    • group::prime::PrimeCurveAffine
    • pairing::PairingCurveAffine
  • New trait implementations for bls12_381::G2Projective:
    • group::{Curve, Group, GroupEncoding, WnafGroup}
    • group::prime::{PrimeCurve, PrimeGroup}
  • New trait implementations for bls12_381::G2Affine:
    • group::{GroupEncoding, UncompressedEncoding}
    • group::prime::PrimeCurveAffine
    • pairing::PairingCurveAffine
  • New trait implementations for bls12_381::Gt:
    • group::Group
  • New trait implementations for bls12_381::MillerLoopResult:
    • pairing::MillerLoopResult
  • New trait implementations for bls12_381::Scalar:
    • ff::{Field, PrimeField}

0.1.1

Added clear_cofactor methods to G1Projective and G2Projective. If the crate feature endo is enabled the G2 cofactor clearing will use the curve endomorphism technique described by Budroni-Pintore. If the crate feature endo is not enabled then the code will simulate the effects of the Budroni-Pintore cofactor clearing in order to keep the API consistent. In September 2020, when patents US7110538B2 and US7995752B2 expire, the endo feature will be made default. However, for now it must be explicitly enabled.

0.1.0

Initial release.