CHANGELOG.md

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 Rust's notion of Semantic Versioning.

[Unreleased]

[0.8.0] - 2024-03-25

Added

• orchard::note::Rho
• orchard::action::Action::rho
• orchard::note_encryption::CompactAction::rho
• orchard::note_encryption::OrchardDomain::for_compact_action
• Additions under the test-dependencies feature flag:
  • orchard::tree::MerkleHashOrchard::random
  • impl Distribution<MerkleHashOrchard> for Standard

Changed

• The following methods have their Nullifier-typed argument or return value now take or return note::Rho instead:
  • orchard::note::RandomSeed::from_bytes
  • orchard::note::Note::from_parts
  • orchard::note::Note::rho

Removed

• orchard::note_encryption::OrchardDomain::for_nullifier (use for_action or for_compact_action instead).

[0.7.1] - 2024-02-29

Added

• impl subtle::ConstantTimeEq for orchard::note::Nullifier
• orchard::note_encryption:
  • CompactAction::cmx
  • impl Clone for CompactAction

[0.7.0] - 2024-01-26

Licensing

• The license for this crate is now "MIT OR Apache-2.0". The license exception that applied to the Zcash and Zebra projects, other projects designed to integrate with Zcash, and certain forks of Zcash, is no longer necessary. For clarity, this is intended to be a strict relaxation of the previous licensing, i.e. it permits all usage that was previously possible with or without use of the license exception.

Added

• orchard::builder:
  • bundle
  • BundleMetadata
  • BundleType
  • OutputInfo
• orchard::bundle::Flags::{ENABLED, SPENDS_DISABLED, OUTPUTS_DISABLED}
• orchard::tree::Anchor::empty_tree

Changed

• Migrated to the zip32 crate. The following types have been replaced by the equivalent ones in that crate are now re-exported from there:
  • orchard::keys::{DiversifierIndex, Scope}
  • orchard::zip32::ChildIndex
• orchard::builder:
  • Builder::new now takes the bundle type to be used in bundle construction, instead of taking the flags and anchor separately.
  • Builder::add_recipient has been renamed to add_output in order to clarify than more than one output of a given transaction may be sent to the same recipient.
  • Builder::build now takes an additional BundleType argument that specifies how actions should be padded, instead of using hardcoded padding. It also now returns a Result<Option<(Bundle<...>, BundleMetadata)>, ...> instead of a Result<Bundle<...>, ...>.
  • BuildError has additional variants:
    • SpendsDisabled
    • OutputsDisabled
    • AnchorMismatch
  • SpendInfo::new now returns a Result<SpendInfo, SpendError> instead of an Option.
• orchard::keys::SpendingKey::from_zip32_seed now takes a zip32::AccountId.

Removed

• orchard::bundle::Flags::from_parts

[0.6.0] - 2023-09-08

Changed

• MSRV is now 1.65.0.
• Migrated to incrementalmerkletree 0.5.

[0.5.0] - 2023-06-06

Changed

• Migrated to zcash_note_encryption 0.4, incrementalmerkletree 0.4, bridgetree 0.3. bridgetree is now exclusively a test dependency.

[0.4.0] - 2023-04-11

Added

• orchard::builder:
  • {SpendInfo::new, InputView, OutputView}
  • Builder::{spends, outputs}
  • SpendError
  • OutputError
• orchard::keys:
  • PreparedEphemeralPublicKey
  • PreparedIncomingViewingKey
• impls of memuse::DynamicUsage for:
  • orchard::note::Nullifier
  • orchard::note_encryption::OrchardDomain
• impls of Eq for:
  • orchard::zip32::ChildIndex
  • orchard::value::ValueSum

Changed

• MSRV is now 1.60.0.
• Migrated to ff 0.13, group 0.13, pasta_curves 0.5, halo2_proofs 0.3, halo2_gadgets 0.3, reddsa 0.5, zcash_note_encryption 0.3.
• orchard::builder:
  • Builder::{add_spend, add_output} now use concrete error types instead of &'static strs.
  • Error has been renamed to BuildError to differentiate from new error types.
  • BuildError now implements std::error::Error and std::fmt::Display.

Fixed

• Several bugs have been fixed that were preventing Orchard bundles from being created or verified on 32-bit platforms, or with recent versions of Rust.

[0.3.0] - 2022-10-19

Added

• orchard::Proof::add_to_batch
• orchard::address::Address::diversifier
• orchard::keys::Diversifier::from_bytes
• orchard::note:
  • RandomSeed
  • Note::{from_parts, rseed}
• orchard::circuit::Circuit::from_action_context

Changed

• Migrated to zcash_note_encryption 0.2.

[0.2.0] - 2022-06-24

Added

• orchard::bundle::BatchValidator
• orchard::builder::Builder::value_balance
• orchard::note_encryption:
  • CompactAction::from_parts
  • CompactAction::nullifier
  • OrchardDomain::for_nullifier
• Low-level APIs in orchard::value for handling ValueCommitments. These are useful in code that constructs proof witnesses itself, but note that doing so requires a detailed knowledge of the Zcash protocol to avoid privacy and correctness pitfalls.
  • ValueCommitTrapdoor
  • ValueCommitment::derive

Changed

• Migrated to halo2_proofs 0.2.

[0.1.0] - 2022-05-10

Changed

• Migrated to bitvec 1, ff 0.12, group 0.12, incrementalmerkletree 0.3, pasta_curves 0.4, halo2_proofs 0.1, reddsa 0.3.
• orchard::bundle:
  • Action has been moved to orchard::Action.
  • Bundle::{try_}authorize have been renamed to Bundle::{try_}map_authorization.
  • Flags::from_byte now returns Option<Flags> instead of io::Result<Flags>.
• impl Sub for orchard::value::NoteValue now returns ValueSum instead of Option<ValueSum>, as the result is guaranteed to be within the valid range of ValueSum.

[0.1.0-beta.3] - 2022-04-06

Added

• orchard::keys:
  • Scope enum, for distinguishing external and internal scopes for viewing keys and addresses.
  • FullViewingKey::{to_ivk, to_ovk}, which each take a Scope argument.
  • FullViewingKey::scope_for_address

Changed

• Migrated to halo2_proofs 0.1.0-beta.4, incrementalmerkletree 0.3.0-beta.2.
• orchard::builder:
  • Builder::add_spend now requires that the FullViewingKey matches the given Note, and handles any scoping itself (instead of requiring the caller to pass the FullViewingKey for the correct scope).
• orchard::keys:
  • FullViewingKey::{address, address_at} now each take a Scope argument.

Removed

• orchard::keys:
  • FullViewingKey::derive_internal
  • impl From<&FullViewingKey> for IncomingViewingKey (use FullViewingKey::to_ivk instead).
  • impl From<&FullViewingKey> for OutgoingViewingKey (use FullViewingKey::to_ovk instead).

[0.1.0-beta.2] - 2022-03-22

Added

• orchard::keys:
  • DiversifierIndex::to_bytes
  • FullViewingKey::derive_internal
  • IncomingViewingKey::diversifier_index
• orchard::note:
  • impl PartialEq, Eq, PartialOrd, Ord for Nullifier
• orchard::primitives::redpallas::VerificationKey::verify
• orchard::tree:
  • MerklePath::from_parts
  • impl PartialEq, Eq, PartialOrd, Ord for MerkleHashOrchard
• impl From<orchard::bundle::BundleCommitment> for [u8; 32]
• Clone impls for various structs:
  • orchard::Bundle::{recover_outputs_with_ovks, recover_output_with_ovk}
  • orchard::builder:
    • InProgress, SigningMetadata, SigningParts, Unauthorized, Unproven
  • orchard::circuit::Circuit
  • orchard::keys::SpendAuthorizingKey
  • orchard::primitives::redpallas::SigningKey

Changed

• MSRV is now 1.56.1.
• Bumped dependencies to pasta_curves 0.3, halo2_proofs 0.1.0-beta.3.
• The following methods now have an additional rng: impl RngCore argument:
  • orchard::builder::Bundle::create_proof
  • orchard::builder::InProgress::create_proof
  • orchard::circuit::Proof::create
• orchard::Bundle::commitment now requires the bound V: Copy + Into<i64> instead of i64: From<&'a V>.
• orchard::Bundle::binding_validating_key now requires the bound V: Into<i64> instead of V: Into<ValueSum>.
• orchard::builder::InProgressSignatures and orchard::bundle::Authorization now have Debug bounds on themselves and their associated types.

Removed

• orchard::bundle:
  • commitments::hash_bundle_txid_data (use Bundle::commitment instead).
  • commitments::hash_bundle_auth_data (use Bundle::authorizing_commitment instead).
• orchard::keys:
  • FullViewingKey::default_address
  • IncomingViewingKey::default_address
  • DiversifierKey (use the APIs on FullViewingKey and IncomingViewingKey instead).
• impl std::hash::Hash for orchard::tree::MerkleHashOrchard (use BTreeMap instead of HashMap).
• orchard::value::ValueSum::from_raw

[0.1.0-beta.1] - 2021-12-17

Initial release!