Investigate which light wallet would be the best fit for Bisq

[HenrikJannsen]

Currently we have integrated Electrum wallet for a light wallet option (Bitcoind is used as full wallet).
We would like to switch to another light wallet implementation which fits better the requirements of upcoming trade protocols which will require more complex transactions.

Requirements:

• Relatively fast startup time
• Acceptable level of privacy (no Bloom filters)
• Code base has to support the more recent changes in Bitcoin core

Good to have:

• Used in production and battle-tested
• Support for updates of unconfirmed transactions (see Idea for Bisq light wallet #968)
• Runs in the JVM (makes deployment easier)
• Lightning support

Candidates we have in mind:

• BDK
• Sparrow Wallet

[mrblue313]

I will do an investigation on this.

[HenrikJannsen]

@mrblue313 Any update? Keep in mind bisq-network/proposals#456

[unbeaten69]

Other than the reliance on Bloom filters and lack of support for Taproot, are there any other problems with using bitcoinj?

[HenrikJannsen]

I have not followed BitcoinJ dev in recent times, but in the past they always lacked latest features and I think RBF is still not there.