blob: 21006f46a08e1ffdea0c79c7bea99b0f2c40aecd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
Coin selection
--------------
### Reuse Avoidance
A new wallet flag `avoid_reuse` has been added (default off). When enabled,
a wallet will distinguish between used and unused addresses, and default to not
use the former in coin selection.
(Note: rescanning the blockchain is required, to correctly mark previously
used destinations.)
Together with "avoid partial spends" (present as of Bitcoin v0.17), this
addresses a serious privacy issue where a malicious user can track spends by
peppering a previously paid to address with near-dust outputs, which would then
be inadvertently included in future payments.
New RPCs
--------
- A new `setwalletflag` RPC sets/unsets flags for an existing wallet.
Updated RPCs
------------
Several RPCs have been updated to include an "avoid_reuse" flag, used to control
whether already used addresses should be left out or included in the operation.
These include:
- createwallet
- getbalance
- sendtoaddress
In addition, `sendtoaddress` has been changed to enable `-avoidpartialspends` when
`avoid_reuse` is enabled.
The listunspent RPC has also been updated to now include a "reused" bool, for nodes
with "avoid_reuse" enabled.
|
