frost/frost-core/CHANGELOG.md

# Changelog

Entries are listed in reverse chronological order.

## Unreleased

## 0.7.0

* Challenge hashing during DKG computation was changed to match the paper.
  This means that code running this version won't interoperate with code
  running previous versions.

## Released

## 0.6.0

* The following structs had a `Identifier` field removed, which affects
  how they are encoded and instantiated:
  * `dkg::round1::Package`
  * `dkg::round2::Package`
  * `SigningCommitments`
  * `SignatureShare`
* The following functions and methods changed parameters from `Vec` to `HashMap`
  so that callers need to indicate the identifier of the source of each
  value being passed:
  * `aggregate()`
  * `dkg::part2()`
  * `dkg::part3()`
  * `SigningPackage::new()`
* `commit()` and `preprocess()` no longer take an identifier as input
* `SignatureResponse` was removed. `SignatureShare` can now be encoded directly with
  `from/to_bytes()`.
* rename all `to_bytes()`/`from_bytes()` to `serialize()`/`deserialize()`
* The group public key is now included in the hash inside the binding factor
  computation. This reflects an upcoming change to the specification:
  https://github.com/cfrg/draft-irtf-cfrg-frost/pull/439
* `generate_with_dealer()` was change to allow specifying which identifiers to use
* Identifiers can now be derived from arbitrary strings with `Identifier::derive()`
* Added `RandomizerParams::from_randomizer()` to allow specifying a randomizer
* Added `Error::culprit()` to easily get the identifier of a misbehaving participant
* Most public types now implement common traits such as Clone and Debug

## 0.5.0

* expose SigningShare, VerifyingShare, NonceCommitment and SignatureResponse in ciphersuite libraries
* most structs now have a private field which mean that they can no longer be
  instantiated directly. `new()` methods have been added to them.
* change `SigningPackage::new()` to take `&[u8]P  instead of `Vec<u8>`
* add `serde` support under `serde` feature to allow encoding structs which
  need to be communicated between participants.
* expand docs to show the overall structure and contents

## 0.4.0

* add serialize and deserialize functions for VerifiableSecretSharingCommitment
* add value, serialize and deserialize functions for CoefficientCommitment

## 0.3.0

* add multiscalar support to speed up signing and aggregating
* change errors caused by protocol violations to contain the misbehaving party
* add frost::keys::split()
* rename reconstruct_secret() to reconstruct(), make it takes a slice instead
  of a Vector, make it return SigningKey, fix it to return Error instead of an
  error string
* rename keygen_with_dealer() to generate_with_dealer()
* change SigningKey::new() to take a reference instead of a value

## 0.2.0

* Implement Zeroize where needed or skip where not needed (fixes compiling error) (#301)
* Change keygen_with_dealer() to return a HashMap (#288)
* Re-export the frost-core traits and rand-core as part of top-level impls API (#297)

## 0.1.0

* Initial release.