108 lines
4.8 KiB
Markdown
108 lines
4.8 KiB
Markdown
# Changelog
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Entries are listed in reverse chronological order.
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## Unreleased
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## 1.0.0-rc.0
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* The `frost-core::frost` module contents were merged into `frost-core`, thus
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eliminating the `frost` module. You can adapt any calling code with e.g.
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changing `use frost_core::frost::*` to `use frost-core::*`.
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* `Challenge`, `BindingFactor`, `BindingFactorList` and `GroupCommitment`
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are no longer public (you can use them with the `internals` feature).
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* Both serde serialization and the default byte-oriented serialization now
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include a version field (a u8) at the beginning which is always 0 for now. The
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ciphersuite ID field was moved from the last field to the second field, after
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the version. Both version and ciphersuite ID are now grouped into a "header"
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struct, which affects self-describing formats like JSON. The ciphersuite ID
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string was also changed for all ciphersuites: it is now equal to the
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`contextString` of each ciphersuite per the FROST spec.
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* An option to disable cheater detection during aggregation of signatures has been added.
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* Added `PublicKeyPackage::from_commitment()` and
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`PublicKeyPackage::from_dkg_commitments` to create a `PublicKeyPackage` from
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the commitments generated in trusted dealer or distributed key generation.
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* Ciphersuite crates now re-export `serde` if enabled.
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## Released
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## 0.7.0
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* Challenge hashing during DKG computation was changed to match the paper.
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This means that code running this version won't interoperate with code
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running previous versions.
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* A new `min_signers` field was added to `KeyPackage`, which changes its
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`new()` method and its serde serialization.
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* `reconstruct()` was changed to take a slice of `KeyPackage`s instead of
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`SecretShare`s since users are expect to store the former and not the latter.
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* New `serialize()`/`deserialize()` methods were added so that a default
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byte-oriented serialization is available for all structs that need to be
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communicated. It is still possible to use serde with you own encoder. Note
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that the format will likely change in the next release.
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* Audit findings were addressed.
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## 0.6.0
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* The following structs had a `Identifier` field removed, which affects
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how they are encoded and instantiated:
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* `dkg::round1::Package`
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* `dkg::round2::Package`
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* `SigningCommitments`
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* `SignatureShare`
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* The following functions and methods changed parameters from `Vec` to `HashMap`
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so that callers need to indicate the identifier of the source of each
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value being passed:
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* `aggregate()`
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* `dkg::part2()`
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* `dkg::part3()`
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* `SigningPackage::new()`
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* `commit()` and `preprocess()` no longer take an identifier as input
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* `SignatureResponse` was removed. `SignatureShare` can now be encoded directly with
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`from/to_bytes()`.
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* rename all `to_bytes()`/`from_bytes()` to `serialize()`/`deserialize()`
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* The group public key is now included in the hash inside the binding factor
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computation. This reflects an upcoming change to the specification:
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https://github.com/cfrg/draft-irtf-cfrg-frost/pull/439
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* `generate_with_dealer()` was change to allow specifying which identifiers to use
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* Identifiers can now be derived from arbitrary strings with `Identifier::derive()`
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* Added `RandomizerParams::from_randomizer()` to allow specifying a randomizer
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* Added `Error::culprit()` to easily get the identifier of a misbehaving participant
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* Most public types now implement common traits such as Clone and Debug
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## 0.5.0
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* expose SigningShare, VerifyingShare, NonceCommitment and SignatureResponse in ciphersuite libraries
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* most structs now have a private field which mean that they can no longer be
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instantiated directly. `new()` methods have been added to them.
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* change `SigningPackage::new()` to take `&[u8]P instead of `Vec<u8>`
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* add `serde` support under `serde` feature to allow encoding structs which
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need to be communicated between participants.
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* expand docs to show the overall structure and contents
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## 0.4.0
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* add serialize and deserialize functions for VerifiableSecretSharingCommitment
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* add value, serialize and deserialize functions for CoefficientCommitment
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## 0.3.0
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* add multiscalar support to speed up signing and aggregating
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* change errors caused by protocol violations to contain the misbehaving party
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* add frost::keys::split()
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* rename reconstruct_secret() to reconstruct(), make it takes a slice instead
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of a Vector, make it return SigningKey, fix it to return Error instead of an
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error string
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* rename keygen_with_dealer() to generate_with_dealer()
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* change SigningKey::new() to take a reference instead of a value
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## 0.2.0
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* Implement Zeroize where needed or skip where not needed (fixes compiling error) (#301)
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* Change keygen_with_dealer() to return a HashMap (#288)
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* Re-export the frost-core traits and rand-core as part of top-level impls API (#297)
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## 0.1.0
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* Initial release.
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