Zebra Client RFC: add mandatory sweep fast startup option
A mandatory sweep would help `zebra-client` match `zebrad`'s blazingly fast speeds.
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@ -296,6 +296,20 @@ Supporting a wallet assumes risk. Effort required to implement wallet functiona
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# Future possibilities
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# Future possibilities
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[future-possibilities]: #future-possibilities
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[future-possibilities]: #future-possibilities
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- mandatory sweeps for legacy keys
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- blazingly fast wallet startup, to match `zebrad`'s blazingly fast sync
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- generate unified address from a new seed phrase (or one provided by the user)
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- user can just backup seed phrase rather than a set of private keys
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- handles arbitrary keys from `zcashd` and other wallets, even if they weren't generated from a seed phrase
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- handles Sprout funds without `zebra-client` having to support Sprout balances
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- startup is incredibly fast
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- sweep takes a few minutes to be confirmed
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- scanning the entire chain could take hours
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- if we know when the seed phrase was created, we can skip millions of blocks during scanning
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- sweeps can also be initiated by the user for non-linkability / performance / refresh
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- sweeps should handle the "block reward recipient" case where there are a lot of small outputs
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- initial release could support mandatory sweeps, and future releases could support legacy keys
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- split `Client` component into subprocess
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- split `Client` component into subprocess
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- this helps somewhat but the benefit is reduced by our prexisting memory safety, thanks to Rust
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- this helps somewhat but the benefit is reduced by our prexisting memory safety, thanks to Rust
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- not meaningful without other isolation (need to restrict `zebrad` from accessing viewing keys on disk, etc)
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- not meaningful without other isolation (need to restrict `zebrad` from accessing viewing keys on disk, etc)
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