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Remove potentially-failing unchecked arithmetic operations for ones which error

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In response to 9.13.3.

Requires a bump to Rust 1.82 to take advantage of `Option::is_none_or`.
This commit is contained in:
Luke Parker
2025-08-08 22:30:34 -04:00
parent cbab9486c6
commit 188fcc3cb4
13 changed files with 65 additions and 18 deletions
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5
networks/monero/ringct/bulletproofs/src/lib.rs
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@@ -86,13 +86,16 @@ impl Bulletproof {
/// Bulletproofs(+) are logarithmically sized yet linearly timed. Evaluating by their size alone
/// accordingly doesn't properly represent the burden of the proof. Monero 'claws back' some of
/// the weight lost by using a proof smaller than it is fast to compensate for this.
///
/// If the amount of outputs specified exceeds the maximum amount of outputs, the result for the
/// maximum amount of outputs will be returned.
// https://github.com/monero-project/monero/blob/94e67bf96bbc010241f29ada6abc89f49a81759c/
// src/cryptonote_basic/cryptonote_format_utils.cpp#L106-L124
pub fn calculate_bp_clawback(plus: bool, n_outputs: usize) -> (usize, usize) {
#[allow(non_snake_case)]
let mut LR_len = 0;
let mut n_padded_outputs = 1;
while n_padded_outputs < n_outputs {
while n_padded_outputs < n_outputs.min(MAX_COMMITMENTS) {
LR_len += 1;
n_padded_outputs = 1 << LR_len;
}