Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

0.13.8 (2023-11-18)

Changed

• SecretKey::from_slice now allows >=24-bytes (#1412)

0.13.7 (2023-11-15)

Added

• BatchInvert and BatchNormalize traits (#1376)
• LinearCombinationExt trait (#1405)

0.13.6 (2023-10-02)

Fixed

• Minimum supported hkdf version is v0.12.1 (#1353)
• Minimum supported serde_json version for jwk feature is v1.0.47 (#1354)
• Minimum supported tap version for bits feature is v1.0.1 (#1355)

0.13.5 (2023-05-19)

Changed

• Faster PublicKey::from_encoded_point (#1310)

Fixed

• alloc+arithmetic features w/o sec1 feature (#1301)

0.13.4 (2023-04-08)

Changed

• Bump hex-literal to v0.4 (#1295)

Fixed

• NonZeroScalar::from_slice (#1296)
• ScalarPrimitive::from_slice (#1296)

0.13.3 (2023-04-04)

Added

• Impl AssociatedAlgorithmIdentifier for SecretKey and PublicKey (#1286)

Changed

• Update OSSWU code (#1157)
• Bump pkcs8 to v0.10.2 (#1291)

Fixed

• FieldBytesEncoding provided impl (#1287)

0.13.2 (2023-03-08)

Added

• Weakly activate pkcs8?/std (#1263)
• More PublicKey <-> SEC1 conversions (#1272)

0.13.1 (2023-03-01)

Added

• SecretKey::from_slice short input support (#1256)

0.13.0 (2023-02-28)

Added

• PublicKey::to_sec1_bytes (#1102)
• Forward std feature to sec1 dependency (#1131)
• NonIdentity wrapper type (#1176)
• Impl serde traits for NonZeroScalar (#1178)
• MulByGenerator trait (#1198)
• NonZeroScalar::invert_vartime (#1207)
• BlindedScalar type (#1208)
• point::Double trait (#1218)
• FieldBytesEncoding trait (#1235)
• Invert::invert_vartime (#1239)

Changed

• Allow bigger c1 constant in OsswuMapParams (#1024)
• Rename Curve::UInt => Curve::Uint (#1191)
• Use weak feature activation (#1192, #1194)
• Consolidate CurveArithmetic trait (#1196)
• Rename SecretKey::to_pem => ::to_sec1_pem (#1202)
• Rename ScalarCore to ScalarPrimitive (#1203)
• Use CryptoRngCore trait (#1206)
• Refactor field element decoding/encoding (#1220)
• Update VOPRF identifier type (#1175)
• Rename SecretKey::as_scalar_core => ::as_scalar_primitive (#1228)
• Rename Reduce::from_bytes_reduced => ::reduce_bytes (#1225, #1229)
• Consolidate AffineCoordinates trait (#1237)
• Allow multiple dsts in the hash2curve API (#1238)
• Have serde feature activate pkcs8 (#1245)
• Dependency upgrades:
  • base16ct (#1254)
  • crypto-bigint v0.5 (#1251)
  • ff and group v0.13 (#1166)
  • pem-rfc7468 v0.7 (#1251)
  • pkcs8 v0.10 (#1251)
  • sec1 v0.7 (#1251)
  • serdect v0.2 (#1251)

Removed

• impl_field_element! macro (#1165)
• Direct der crate dependency (#1195)
• AffineArithmetic, ProjectiveArithmetic, ScalarArithmetic traits (#1196)
• Toplevel re-exports except for AffinePoint, ProjectivePoint, and Scalar (#1223)
• Reduce methods (#1225)
• Blanket impl for Invert (#1242)

0.12.3 (2022-08-01)

Added

• Aliases for SEC1 compressed/uncompressed points (#1067)

Fixed

• arithmetic + serde feature combo (#1066)

0.12.2 (2022-07-01)

Changed

• Bump crypto-bigint to v0.4.8 (#1039)

0.12.1 (2022-06-12)

Added

• impl_field_element! macro (#1021)
• Generic impl of complete prime order formulas (#1022)

Changed

• Bump crypto-bigint to v0.4.4 (#1018, #1020)

0.12.0 (2022-05-08)

Added

• ecdh::SharedSecret::extract HKDF helper (#1007)

Changed

• Bump digest dependency to v0.10 (#883, #904)
• Make NonZeroScalar::invert infallible (#894)
• ToCompactEncodedPoint now returns CtOption (#895)
• Move hash2field into hash2curve module (#903)
• Bump ff and group dependencies to v0.12 (#994)
• Use serdect crate (#996)
• Replace AlgorithmParamters with AssociatedOid (#1001)
• Bump crypto-bigint dependency to v0.4 (#1005)
• Bump der dependency to v0.6 (#1006)
• Bump pkcs8 dependency to v0.9 (#1006)
• Bump sec1 dependency to v0.3 (#1006)
• Bump pem-rfc7468 dependency to v0.6 (#1009)

Removed

• Zeroize impl from ecdh::SharedSecret (#978)

0.11.12 (2022-01-30)

Changed

• Disable bits feature on docs.rs due to nightly breakage (#927)

0.11.11 (2022-01-30)

• No changes; triggering a docs.rs rebuild

0.11.10 (2022-01-27)

Changed

• Revert #884 to support a wider range of zeroize versions (#923)

0.11.9 (2022-01-17) [YANKED]

Changed

• Activate bits, hash2curve, and voprf features on docs.rs (#891)

0.11.8 (2022-01-15) [YANKED]

Added

• Impl ZeroizeOnDrop on appropriate items (#884)

Changed

• Use the base16ct crate for hex serialization (#886, #887, #888)

0.11.7 (2022-01-14) [YANKED]

Added

• Initial hash-to-field support (#854, #855, #871, #874)
• Initial hash-to-curve support (#865, #876)
• Impl Mul for NonZeroScalar * NonZeroScalar (#857, #862)
• Reduce::from_*e_digest_reduced (#869)
• VoprfParameters trait (#878)

0.11.6 (2021-12-20)

Added

• Type conversions chart (#852)

0.11.5 (2021-12-05)

Changed

• Revised LinearCombination trait (#835)

0.11.4 (2021-12-04) [YANKED]

Added

• LinearCombination trait (#832)

0.11.3 (2021-12-03) [YANKED]

Added

• ReduceNonZero trait (#827)

0.11.2 (2021-12-03) [YANKED]

Changed

• Bump pem-rfc7468 dependency to v0.3 (#825)

0.11.1 (2021-11-21) [YANKED]

Added

• NonZeroScalar::from_uint (#822)

0.11.0 (2021-11-19) [YANKED]

Added

• ScalarCore<C> type (#732)
• PrimeCurveArithmetic trait (#739)
• SEC1 private key support (#762)
• Reduce trait (#768)
• Re-export ff and PrimeField (#796)
• Encoding bound on Curve::UInt (#806)
• scalar::IsHigh trait (#814, #815)
• Neg impl for NonZeroScalar<C> (#816)
• AffineXCoordinate trait (#817)
• serde support for scalar and PublicKey types (#818)

Changed

• Bump ff + group to v0.11 (#730)
• Make SecretKey::to_jwk_string self-zeroizing (#742)
• Use sec1 crate's EncodedPoint (#771)
• Make FromEncodedPoint return a CtOption (#782)
• Rust 2021 edition upgrade; MSRV to 1.56 (#795)
• Bump crypto-bigint dependency to v0.3 (#807)
• Use sec1 crate for pkcs8 support (#809)
• Bump spki dependency to v0.5 release (#810)
• NonZeroScalar is now bounded on ScalarArithmetic instead of ProjectiveArithmetic (#812)

Fixed

• Zeroize impl on NonZeroScalar (#785)

0.10.6 (2021-08-23)

Changed

• Bump crypto-bigint dependency to v0.2.4 (#710)

0.10.5 (2021-07-20)

Changed

• Pin zeroize dependency to v1.4 and subtle to v2.4 (#689)

0.10.4 (2021-07-12)

Added

• Re-export rand_core (#683)

0.10.3 (2021-06-21)

Changed

• Bump crypto-bigint to v0.2.1 (#673)

0.10.2 (2021-06-14) [YANKED]

Added

• ConstantTimeEq impl for NonZeroScalar (#669)

0.10.1 (2021-06-09) [YANKED]

Added

• Explicit Copy bounds on PublicKey (#667)

0.10.0 (2021-06-07) [YANKED]

Added

• ScalarBytes::from_uint (#651)
• dev::ScalarBytes (#652)
• ScalarArithmetic trait (#654)
• AffineArithmetic trait (#658)
• PointCompaction trait and SEC1 tag support (#659)

Changed

• Bump ff and group to v0.10; MSRV 1.51+ (#643)
• Merge Curve and Order traits (#644)
• Use crypto-bigint to represent Curve::ORDER (#645)
• Source FieldSize<C> from C::UInt type (#646)
• Impl ScalarBytes<C> using C::UInt (#647)
• Make ScalarBytes<C> the SecretKey<C> internal repr (#649)
• Bump crypto-bigint to v0.2 (#662)
• Bump pkcs8 to v0.7 (#662)

Removed

• util module (#648)

0.9.12 (2021-05-18)

Added

• Ord and PartialOrd impls on PublicKey (#637)

0.9.11 (2021-04-21)

Added

• Impl subtle traits on ScalarBytes<C> (#612)

Fixed

• Always re-export ScalarBytes (#613)

0.9.10 (2021-04-21)

Added

• ScalarBytes type (#610)

0.9.9 (2021-04-21) [YANKED]

Added

• Order::is_scalar_repr_in_range (#608)

0.9.8 (2021-04-21)

Added

• Define Order for MockCurve (#606)

0.9.7 (2021-04-21)

Added

• Order trait (#603)

Fixed

• Warnings from pkcs8 imports (#604)

0.9.6 (2021-03-22)

Changed

• Bump pkcs8 dependency to v0.6 (#585)

0.9.5 (2021-03-17) [YANKED]

Added

• Implement {to,char}_le_bits for MockCurve (#565)
• Implement one() for mock Scalar (#566)

Changed

• Use string-based OID constants (#561)
• Bump base64ct dependency to v1.0 (#581)

0.9.4 (2021-02-18) [YANKED]

Fixed

• Breakage related to the pkcs8 v0.5.1 crate (#556)

0.9.3 (2021-02-16) [YANKED]

Changed

• Bump pkcs8 dependency to v0.5.0 (#549)

Fixed

• Workaround for bitvecto-rs/bitvec#105 (#550)

0.9.2 (2021-02-12) [YANKED]

Changed

• Flatten weierstrass module (#542)

0.9.1 (2021-02-11) [YANKED]

Removed

• BitView re-export (#540)

0.9.0 (2021-02-10) [YANKED]

Added

• JWK support (#483)
• sec1::ValidatePublicKey trait (#485)
• hazmat crate feature (#487)
• Result alias (#534)

Changed

• Bump ff and group crates to v0.9 (#452)
• Simplify ECDH trait bounds (#475)
• Flatten API (#487)
• Bump pkcs8 crate dependency to v0.4 (#493)

Removed

• Direct bitvec dependency (#484)
• FromDigest trait (#532)

0.8.5 (2021-02-17)

Fixed

• Workaround for bitvecto-rs/bitvec#105 (#553)

0.8.4 (2020-12-23)

Fixed

• Rust nightly regression (#432)

0.8.3 (2020-12-22)

Fixed

• Regression in combination of pem+zeroize features (#429)

0.8.2 (2020-12-22) [YANKED]

Added

• Low-level ECDH API (#418)
• dev module (#419)
• Impl pkcs8::ToPrivateKey for SecretKey<C> (#423)
• Impl pkcs8::ToPublicKey for PublicKey<C> (#427)

Changed

• Bump subtle dependency to 2.4.0 (#414)
• Bump pkcs8 dependency to v0.3.3 (#425)
• Use der crate to parse SecretKey (#422)

Fixed

• Make PublicKey::from_encoded_point go through PublicKey::from_affine (#416)

0.8.1 (2020-12-16) [YANKED]

Fixed

• Builds on Rust nightly compiler (#412)

0.8.0 (2020-12-16) [YANKED]

Added

• Impl subtle::ConditionallySelectable for sec1::EncodedPoint (#409)
• sec1::EncodedPoint::identity() method (#408)
• sec1::Coordinates::tag method (#407)
• Support for SEC1 identity encoding (#401)

Changed

• Bump pkcs8 crate dependency to v0.3 (#405)
• Ensure PublicKey<C> is not the identity point (#404)
• Have SecretKey::secret_scalar return NonZeroScalar (#402)

Removed

• SecretKey::secret_value (#403)

0.7.1 (2020-12-07)

Changed

• Have SecretKey::secret_value always return NonZeroScalar (#390)

0.7.0 (2020-12-06) [YANKED]

Added

• Impl pkcs8::FromPublicKey for PublicKey<C> (#385)
• Impl pkcs8::FromPrivateKey trait for SecretKey<C> (#381, #383)
• PKCS#8 PEM support (#382)
• SecretKey::secret_value() method (#375)
• PublicKey<C> type (#363, #366)

Changed

• Rename PublicKey::from_bytes() to ::from_sec1_bytes() (#376)
• sec1::EncodedPoint uses Option instead of subtle::CtOption (#367)
• Bump const-oid to v0.3; MSRV 1.46+ (#365, #381)

Fixed

• ecdh rustdoc (#364)

0.6.6 (2020-10-08)

Added

• Derive Clone on SecretBytes ([#330])

0.6.5 (2020-10-08)

Fixed

• Work around nightly-2020-10-06 breakage (#328)

0.6.4 (2020-10-08)

Added

• Impl From<SecretBytes<C>> for FieldBytes<C> (#326)

0.6.3 (2020-10-08)

Added

• SecretBytes newtype (#324)

0.6.2 (2020-09-24)

Added

• sec1::EncodedPoint::to_untagged_bytes() method (#312)

0.6.1 (2020-09-21)

Fixed

• sec1::EncodedPoint::decompress (#309)

0.6.0 (2020-09-11) [YANKED]

Added

• arithmetic feature (#293)
• Generic curve/field arithmetic using the ff and group crates (#287, #291, #292)
• sec1::Coordinates (#286)
• weierstrass::point::Compression trait (#283, #300)
• Arithmetic helper functions (#281)
• digest feature and FromDigest trait (#279)
• impl Deref for NonZeroScalar (#278)
• Conditionally impl Invert for NonZeroScalar (#277)
• NonZeroScalar::to_bytes (#276)
• EncodedPoint::decompress (#275)
• sec1::Tag (#270)
• weierstrass::point::Decompress trait (#266)
• alloc feature + EncodedPoint::to_bytes() (#265)

Changed

• Renamed Arithmetic trait to point::ProjectiveArithmetic (#300)
• Replaced Arithmetic::Scalar and Arithmetic::AffinePoint with Scalar<C> and AffinePoint<C> (#300)
• Made SecretKey<C> inner type generic (#297)
• Renamed ElementBytes<C> to FieldBytes<C> (#296)
• MSRV 1.44 (#292)
• Minimum subtle version now v2.3 (#290)
• Renamed Curve::ElementSize to ::FieldSize (#282)
• Refactor PublicKey into sec1::EncodedPoint (#264)

Removed

• FromBytes trait (#300)
• Generate trait (#295)

0.5.0 (2020-08-10)

Added

• Arithmetic trait (#219)
• Generate trait (#220, #226)
• Toplevel Curve trait (#223)
• Invert trait (#228)
• FromPublicKey trait (#229, #248)
• Re-export zeroize (#233)
• OID support (#240, #245)
• NonZeroScalar type (#241)
• Generator trait (#241)
• weierstrass::PublicKey::compress method (#243)
• Derive Clone on SecretKey (#244)
• Generic Elliptic Curve Diffie-Hellman support (#251)

Changed

• Moved repo to https://github.com/RustCrypto/traits (#213)
• Rename ScalarBytes to ElementBytes (#246)
• Rename CompressedCurvePoint/UncompressedCurvePoint to CompressedPoint/UncompressedPoint

0.4.0 (2020-06-04)

Changed

• Bump generic-array dependency from v0.12 to v0.14

0.3.0 (2020-01-15)

Added

• Scalar struct type

Changed

• Repository moved to https://github.com/RustCrypto/elliptic-curves

Removed

• Curve definitions/arithmetic extracted out into per-curve crates

0.2.0 (2019-12-11)

Added

• secp256r1 (P-256) point compression and decompression

Changed

• Bump MSRV to 1.37

0.1.0 (2019-12-06)

• Initial release