Releases · ZcashFoundation/frost

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.
A new min_signers field was added to KeyPackage, which changes its
new() method and its serde serialization.
reconstruct() was changed to take a slice of KeyPackages instead of
SecretShares since users are expect to store the former and not the latter.
New serialize()/deserialize() methods were added so that a default
byte-oriented serialization is available for all structs that need to be
communicated. It is still possible to use serde with you own encoder. Note
that the format will likely change in the next release.
Audit findings were addressed.

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:
cfrg/draft-irtf-cfrg-frost#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

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