Adding individual UTXO management

MaxHillebrand commented 5 years ago

Description

A lot of privacy concerns can be handled with well guided UTXO management best practices. Power users want to have in depth control over the individual coins. Desktop wallets like Electrum or Wasabi have implemented this already, the same design can be applied to mobile wallets. Blindly using branch and bound might consolidate UTXOs with different historical clusters. This can leak unnecessary metadata.

This is a long-term feature request.

Desired behaviour

@Nopara73 describes the importance of coin control and his design desicions for Wasabi Wallet.
I think the two core attributes are 1] precise labeling of every UTXO/Graph and 2] individual selection of UTXOs at the time of spending.
It might be of benefit to display the suggestion of branch and bound, but leave the final decision to the user.
Good UI would be an automatic sum of the total value of all selected UTXOs next to the MAX button.

bitschmidty commented 5 years ago

@MaxHillebrand Thanks for suggestion and all the detail you provided in this issue. We have quite a few privacy enhancements in the queue and coin control is definitely on the list.

defas-doomster commented 3 years ago

This is an important feature, hope to see it soon

nopara73 commented 3 years ago

FTR half of the benefits of coin control can be gained by an extra change avoidance page

Blockstream / green_android

Adding individual UTXO management #7

Description

Desired behaviour