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Implement shared key derivation according to https://github.com/monero-project/research-lab/issues/103

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Currently solely used for single signer change outputs, intended to be 
used for funds into Serai and multisig change outputs (dependent on #2).

Also cleans the file layout, makes scanning a bit more robust, doesn't 
return outputs of amount 0, and shuffles outputs.
This commit is contained in:
Luke Parker
2022-05-20 01:03:54 -04:00
parent 8945b50988
commit 573f847a9b
4 changed files with 229 additions and 142 deletions
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7
coins/monero/tests/send.rs
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@@ -84,7 +84,12 @@ pub async fn send_core(test: usize, multisig: bool) {
tx = Some(rpc.get_block_transactions(start).await.unwrap().swap_remove(0));
}
let output = transaction::scan(tx.as_ref().unwrap(), view, spend_pub).swap_remove(0);
// Grab the largest output available
let output = {
let mut outputs = transaction::scan(tx.as_ref().unwrap(), view, spend_pub);
outputs.sort_by(|x, y| x.commitment.amount.cmp(&y.commitment.amount).reverse());
outputs.swap_remove(0)
};
// Test creating a zero change output and a non-zero change output
amount = output.commitment.amount - u64::try_from(i).unwrap();
outputs.push(output);