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zcash_note_encryption
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Use batch decryption in wallet scanning. 

This modifies wallet scanning to perform per-block batched
decryption. It also alters the structure of the `ScanningKey`
trait to correctly include internal (change) keys in the scan
process.


Extracted from: 73314dc682
This commit is contained in:
Kris Nuttycombe 2022-07-25 20:12:45 -06:00
parent f258e3559e
commit 168fd15674
1 changed files with 4 additions and 0 deletions
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4
src/batch.rs
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@ -47,6 +47,10 @@ fn batch_note_decryption<D: BatchDomain, Output: ShieldedOutput<D, CS>, F, FR, c
where where
F: Fn(&D, &D::IncomingViewingKey, &EphemeralKeyBytes, &Output, &D::SymmetricKey) -> Option<FR>, F: Fn(&D, &D::IncomingViewingKey, &EphemeralKeyBytes, &Output, &D::SymmetricKey) -> Option<FR>,
{ {
if ivks.is_empty() {
return (0..outputs.len()).map(|_| None).collect();
};
// Fetch the ephemeral keys for each output and batch-parse them. // Fetch the ephemeral keys for each output and batch-parse them.
let ephemeral_keys = D::batch_epk(outputs.iter().map(|(_, output)| output.ephemeral_key())); let ephemeral_keys = D::batch_epk(outputs.iter().map(|(_, output)| output.ephemeral_key()));