As of zcash/librustzcash#633, `SaplingDomain::IncomingViewingKey` now
allocates memory internally, and this memory persists as long as the
`BatchRunner` is alive. Now that we have decoupled the measurement of
heap usage for batch tasks from their internals, we can add bounds to
all of the generic parameters of `Batch` to enable correctly measuring
their actual heap usage.
Ported from zcash/librustzcash@913aa0a988.
Currently supports Zcash blocks, block headers, and transactions. Some
consensus rules are also checked, and a JSON context object can be
optionally passed to provide any necessary details for extra contextual
consensus checks.
The primary purpose of this commit is an exercise in using `cargo vet`
for tracking audits of our Rust dependency updates. `cargo update` was
run, and then a simple-to-audit subset of the dependency updates were
audited and committed.
This changes anchor selection and Orchard authentication path generation
to default to select anchors at a the depth specified by the
`-orchardanchorconfirmations` CLI argument, with a default anchor
selection depth of 10 blocks.
If the value of `minconf` used for a particular call to `z_sendmany` is
less than the the set number of Orchard anchor confirmations, `minconf`
will be used instead for the Orchard anchor confirmations depth,
so that the selected anchor will be certain to contain any notes
selected to be spent.
Fixes#5644
We still depend on it indirectly, but we don't use it directly anymore
since we upstreamed our patch to `metrics-exporter-prometheus`.
`thiserror` is also only used by the wallet tool, so has been reordered
accordingly.
`hyper 0.14.18` stops building the C libraries by default (after opt-in
support was added via a new flag in nightly Cargo), which means we no
longer have the problem of the `cdylib` build requiring a linker to be
hooked up to the Rust build when all we want is a `staticlib`.
For consistency, we serialize the `finalState` field in the
same (sparse) encoding as Sapling and Sprout use. In the future
we may want to update this to the dense encoding that
incrementalmerkletree::bridgetree::Frontier uses, but that's not
necessary for the moment.
When initializing a new Orchard wallet after NU5 activation, it is
not valid to start from the empty note commitment tree; instead,
the note commitment tree needs to be initialized from the state of
the global Orchard Merkle frontier.
In addition, this change necessitates a change to how rewinds work,
such that in a rollback scenario with a newly initialized wallet
that does not have sufficient checkpoints to fully satisfy a requested
rewind, the rewind is allowed to proceed so long as it does not
invalidate any persisted witness data.
This includes:
- `orchard =0.1.0-beta.3` which includes the final circuit changes.
- The new NU5 consensus branch ID.
- Updated ZIP 244 test vectors (which use the NU5 consensus branch ID).