This fixes a potential bug with importing the mnemonic into a third
party transparent wallet. Previously, if a user called `getnewaddress`,
made a bunch of transactions that generated at least 20 change
addresses, and then called `getnewaddress` again, the two external
addresses would be separated by a gap of more than 20. If this mnemonic
were imported into a third party transparent wallet, the wallet would
not detect any funds in the second (or subsequent) transparent addresses
because it would detect 20 unused addresses in a row (via the BIP 44
default gap limit).
Now, we track external and internal keys separately; repeated calls to
`getnewaddress` will return addresses for sequential keys. This has the
added benefit that the sequence of `getnewaddress` outputs will be the
same after restoring from a backup.
We also add a `type` field to the output objects (matching the field in
`z_viewtransaction`), now that the output type can't be distinguished
solely from the address encoding.
The ZTXOSelector type allows selection of previous Zcash
transaction outputs (both transparent outputs and shielded notes)
on the basis of either a (legacy) bare address, or for a
BIP-44 account.
We now use the empty array of pools to indicate that the default pools
should be used when providing a diversifier index parameter, instead of
needing a default sentinel value for the diversifier index parameter
(which was previously suggested as '*' which would have caused issues
for defining a consistent type for that parameter).
This adds an `allowRevealedAmounts` argument to z_sendmany. This
flag must be present to allow an amount-revealing cross-pool transfer
to be constructed.
This replaces the old implementation of asyncrpcoperation_sendmany
with one where all transaction construction is delegated to the
transaction builder. The capabilities of z_sendmany are somewhat
modified in the process:
* z_sendmany now permits sending funds from a Sprout address to
both transparent and Sapling addresses. PRIVACY NOTE: When
user sends a Sprout->Sapling transaction, the amount of the
transaction is publicly revealed.
* z_sendmany no longer supports transactions sending funds into
the Sprout pool, with the exception of change amounts when
sending from a Sprout address.
* When sending transparent coinbase funds to a set of shielded
addresses, the amount sent to recipients must fully consume
the input value and no change is permitted. This is a slightly
weaker constraint than was previously implemented; in the past,
only a single shielded recipient was allowed.
This adds a new `AddrSet` type for use in note retrieval
as a filter, in place of a heterogeneous list of `RawAddress`
values. `RawAddress` will complicate the handling of addresses
within the wallet after the addition of unified addresses,
because it does not contain transparent receiver types, and
if we retain this polymorphism it means a lot of invalid states
are represented in places we don't want them to be. It's better
to figure out what types of addresses we're working with as soon
as possible after parsing, and use monomorphic calls from there
on in.
We added support for the NU5 consensus rules in v4.5.0, which alters the
block header to contain a `hashBlockCommitments` value instead of the
chain history root. However, the output of `getblocktemplate` wasn't
returning this value; once NU5 activated, the `blockcommitmentshash`
field was being set to "null" (all-zeroes).
In v4.6.0 we added full NU5 support to `getblocktemplate`, by adding a
`defaultroots` field that gave default values for `hashBlockCommitments`
and the components required to derive it. However, in doing so we
introduced a regression in the (now-deprecated) legacy fields, where
prior to NU5 activation they contained nonsense.
This commit fixes the output of `getblocktemplate` to have the intended
semantics for all fields:
- The `blockcommitmentshash` and `authdataroot` fields in `defaultroots`
are now omitted from block templates for heights before NU5 activation.
- The legacy fields now always contain the default value to be placed
into the block header (regaining their previous semantics).
Co-authored-by: Larry Ruane <larry@z.cash>
This test currently fails with submitblock returning the error
"bad-heartwood-root-in-block".
Added authdigest to GBT coinbasetxn field because we can't obtain this
via getrawtransaction.
Co-authored-by: Jack Grigg <jack@z.cash>
This will ensure that miners can use the values returned by
getblocktemplate (in particular, the block commitment hash)
to submit a valid block using the submitblock RPC.
zcash/zcash:
The `getmininginfo` RPC now omits `currentblockize` and `currentblocktx`
when a block was never assembled via RPC on this node during its current
process instantiation. The relevant RPCs are `generate` (regtest only) and
`getblocktemplate`. Blocks are also assembled when running the internal
miner (`zcashd -gen=1`), after the node mines its first block.
(cherry picked from commit bitcoin/bitcoin@fa178a6385)
This test-only change allows python (rpc) tests to specify, for example,
that NU5 should be activated at height X, without having to specify all
the previous network upgrades. Previous upgrades can (and must) still be
specified if they activate at different block heights (than, in this
example, NU5). This makes tests easier to write (and read), especially
as the number of network upgrades increases over time.
Note that this change only affects zcashd behavior in regtest mode. For
the other network modes (testnet and mainnet), the activation heights
are hard-coded in chainparams.cpp.
Adds HD seed derivation from ZIP-339 mnemonic phrases.
This replaces random generation of transparent spending keys with BIP-44-compatible derivation from a mnemonic seed phrase, and replaces the random HD seed previously used for Sapling HD key derivation
with the same mnemonic seed. After this change, all new transparent and Sapling addresses
will be derived from a new randomly generated mnemonic seed, which is produced in such a way that
it is guaranteed to produce valid unified spending keys at account 0 for all address types.
Closes#5176.
Closes#2673.
After 4.5.2, all wallets will be populated with an emergency
recovery phrase, and all future addresses will be derived from
the associated seed. To prevent potential loss of funds, we
require that the user explicitly invoke the `walletconfirmbackup`
RPC method to verify that they have backed up this seed.
We aren't going to move to Clang 13 in a hotfix release. The other
dependencies passed their postponement re-evaluation date, but also
won't be updated just yet.
The "IsFromMe" logic was implemented in several places in the Bitcoin
Core wallet. We had correctly updated CWallet::IsFromMe(CTransaction)
(which was used in most places in the wallet) to check for shielded
notes being spent, but did not notice that CWalletTx::IsFromMe also
needed this check.
This bug has existed since before Zcash launched. It went unnoticed
because CWalletTx::IsFromMe was previously only called from code
used to either create purely-transparent transactions, or provide
informational output on non-critical RPC methods.
Closeszcash/zcash#5325.
- The patches `iostreams-106.patch` and `signals2-noise.patch` were
incorporated into Boost 1.75.
- The allocator access deprecation issue was fixed in Boost 1.76.
Closeszcash/zcash#4945.
This adds the double-hash message variant. The extra hash field is set
to null for block message types, and to all-ones for MSG_TX (to match
the legacy authHash value used for pre-v5 transactions in the Merkle
tree).
I tested the NU5 components of this PR by locally setting the protocol
version to 170014. I forgot to check that without that override, the
test would skip the NU5 checks. The reason it defaulted to NU5 is that
the test was reading the client version 4040150, which is indeed not
less than the NU5 protocol version ^_^;;
Larry Ruane
Kris Nuttycombe
Jack Grigg
str4d
Kris Nuttycombe
zancas
Charlie O'Keefe
Dimitris Apostolou
Larry Ruane
MarcoFalke
Kris Nuttycombe
mdr0id