This was only used to provide example code for Sapling usage of
the `NoteEncryption` struct; this example code has been moved
to `sapling::note_encryption`.
This modifies wallet scanning to perform per-block batched
decryption. It also alters the structure of the `ScanningKey`
trait to correctly include internal (change) keys in the scan
process.
While it is necessary in the worst case to perform `m * n` decryptions,
where `m` is the number of outputs being decrypted and `n` is the number
of IVKs, it is possible to stop performing trial decryptions when the
first successful decryption is performed. Also, it's inconvenient and
unnecessary to return the full cartesian product of these results, as
only one IVK will decrypt a given output. This commit modifies batch
trial decryption to stop on the first successful decryption, and instead
of returning the cartesian product of results we return the index of the
input IVK along with the output it decrypted. Note that this means that
trial decryption is not constant-time with respect to the number and/or
order of IVKs.
This, along with the corresponding `TryFromRawAddress` trait, enables
converting `ZcashAddress` into a network-agnostic type.
Closeszcash/librustzcash#564.
This enables the user-defined conversions to be fallible, which they
will almost always want to be (as address data needs to be validated
before it can be used).
This provides the encoding corresponding to
`ZcashAddress::try_from_encoded` and documents the fact that the
`Display` instance can also provide this encoding.
Fixes#463
In a number of places, we transform other kinds of collections with
known length information into vectors simply to be able to use them with
`Vector::write` or `Vector::read`. We can avoid these extra allocations
by writing from iterators directly, and similarly by reading directly
into our desired collection types.
There are two canonical orderings for sealed items: preference
order and encoding order. Removing the `Ord` instances means
that a user can't accidentally choose the wrong ordering;
these orderings are replaced by explicit `preference_order`
and `encoding_order` comparison functions.
Sean Bowe
Kris Nuttycombe
Jack Grigg
Daira Hopwood
Nathan Wilcox
Kris Nuttycombe
Squirrel