1.6.0

What's Changed

• weierstrass, edwards: add multi-scalar-multiplication using Pippenger algorithm
• DER encoding: improve edge cases. Fixes p521 signatures
• hash-to-curve: add more type checks
• Export abstract/tower for pairing-friendly curves
• Add support for node.js v14
• Upgrade hashes to v1.5.0

Full Changelog: 1.5.0...1.6.0

1.5.0

• Implement bn254 (aka alt_bn128) pairings, compatible with EVM and ZEC
  • Point serialization is not implemented (but can be added in user-space), because there is no standard way of doing it. Check out README
• Refactor range checks for private keys and signatures, simplify them
• Add memoization for toAffine and assertValidity, to speed-up BLS
• Make all points immutable and frozen to improve security

Full Changelog: 1.4.2...1.5.0

1.4.2

• Typescript build: revert target from ES2022 to ES2020 due to compat issues

Full Changelog: 1.4.1...1.4.2

1.4.1

• bls12-381: Add mapToCurve; fix typescript types
• ed25519, utils: Improve tree-shaking
• Typescript build: emit separate type declarations for ESM, to improve compatibility
• Typescript build: change target from ES2020 to ES2022

New Contributors

• @carleeto made their first contribution in #133

Full Changelog: 1.4.0...1.4.1

1.4.0

• Fix verification of BLS short signatures when using hex
• Fix types in hash-to-field and weierstrass Entropy
• Update noble-hashes to v1.4, adding support for Big-Endian platforms
• Small utilities refactor to reduce code duplication
• tsconfig improvements

New Contributors

• @ardislu made their first contribution in #110
• @dhrubabasu made their first contribution in #117
• @xrchz made their first contribution in #129

Full Changelog: 1.3.0...1.4.0

1.3.0

• BLS:
  • Add support for short signatures. Short sigs allow using G1 as sig and G2 as pubkeys, instead of wise-versa.
  • Contributed by @randombit in #74
  • Refactor mask-bit settings, improve encoding resiliency
• ed25519, ed448: implement Group interface for DecafPoint and RistrettoPoint by @sublimator in #85
• ed448: Fix x448 private keys, to be 56 bytes, not 57
• weierstrass: fix weierstrassPoints missing CURVE object by @secure12 in #92
• utils:
  • hexToBytes: speed-up 6x, improve error formatting by @arobsn in #83
  • isBytes: improve reliability in bad environments such as jsdom
  • concatBytes: improve safety by early-checking the type
  • equalBytes: make constant-time
• Bump noble-hashes to 1.3.3
• Bump typescript version used to build the package to 5.3.2

New Contributors

• @randombit made their first contribution in #74
• @arobsn made their first contribution in #83
• @secure12 made their first contribution in #92
• @yhc125 made their first contribution in #93

Full Changelog: 1.2.0...1.3.0

1.2.0

• ed448: add decaf448 support
• weierstrass: improve security of random private keys
  by decreasing bias from 2^-64 to 2^-curve_security_level
• weierstrass: allow extraEntropy to take any amount of bytes
• poseidon: improve security, make sboxPower mandatory and prohibit values other than 3, 5, 7; prohibit odd roundsFull
• hash-to-curve: allow string and Uint8Array DSTs
• tree-shaking improvements: add sideEffects: false to package.json,
  add pure annotations to ed25519
• update noble-hashes to 1.3.2

New Contributors

• @stknob made their first contribution in #59
• @mahnunchik made their first contribution in #56
• @steveluscher made their first contribution in #62

Full Changelog: 1.1.0...1.2.0

1.1.0

What's Changed

• ed25519 and ed448 verify now provide non-repudiation (Strongly Binding Signatures) when option zip215: false is used
  • non-repudiation is useful for e-voting and other systems
  • The Provable Security of Ed25519: Theory and Practice
  • Taming the many EdDSAs and NIST presentation
• Reduce common-case bundle size by 20% by using PURE annotation. It helps bundlers during tree-shaking and eliminates dead code.
  • secp256k1: 75.4kb => 62.3kb
  • ed25519: 67.5kb => 51.1kb
  • ed448: 55.1kb => 44.0kb
  • p256: 67.8kb => 59.8kb
  • p384: 75.4kb => 67.4kb
  • p521: 75.8kb => 67.8kb
• weierstrass: sign return type was changed from SignatureType to RecoveredSignatureType
• edwards: rename edwardsToMontgomery to edwardsToMontgomeryPub, add edwardsToMontgomeryPriv
• bls12-381: improve friendliness to bad compilers by not using bigint literals
• Improve friendliness to bad compilers by not using exponentiation operator with bigints
• ed25519: fix ristrettoHash size typo in hashToCurve by @sublimator in #42
• utils: harmonize with noble-hashes
• utils: Fix utf8ToBytes in firefox extension context (bugzil.la/1681809)

New Contributors

• @mirceanis made their first contribution in #32
• @legobeat made their first contribution in #38
• @sublimator made their first contribution in #42
• Thanks to @Wind4Greg for the involvement in SBS

Full Changelog: 1.0.0...1.1.0

1.0.0

First stable release. API should remain stable now.

ed25519, ed448: changed API

• context is now an option in sign and verify
• zip215 is a new verify option that allows to conform to RFC8032 when false. For true it will instead match ZIP215.
• Added edwardsToMontgomery function

bls12-381: changed API

• CURVE is no longer exposed, it was an internal property. Use G1.CURVE, G2.CURVE
• Fields have been moved into fields: {Fp, Fp2, Fp6, Fp12, Fr} property
• See README for new usage

weierstrass: improved DER decoding. Validate curve creation
Updated Wycheproof vectors to v0.9
hash-to-curve: restrict expand to xmd and xof

Full Changelog: 0.9.1...1.0.0

0.9.1

• Fix React Native like environments: remove bigint literals
• weierstrass, edwards: make points expose typescript x, y
• edwards: add toRawBytes to typescript type

Full Changelog: 0.9.0...0.9.1