libsoliton/soliton/fuzz/fuzz_targets/fuzz_verification_phrase.rs
Kamal Tufekcic d73755a275
initial commit
Signed-off-by: Kamal Tufekcic <kamal@lo.sh>
2026-04-23 15:51:07 +03:00

18 lines
747 B
Rust

#![no_main]
use libfuzzer_sys::fuzz_target;
use soliton::verification::verification_phrase;
fuzz_target!(|data: &[u8]| {
// verification_phrase validates exact size (3200 bytes each).
// Fixed split: inputs ≥ 6400 bytes always produce two exact 3200-byte
// halves regardless of total length, so the SHA-512 word derivation and
// rejection-sampling loop (20-rehash cap) are reachable from any input
// of 6400+ bytes. A midpoint split would only reach that path for
// inputs of exactly 6400 bytes.
const PK_SIZE: usize = 3200; // SOLITON_PUBLIC_KEY_SIZE
const MIN: usize = 2 * PK_SIZE;
if data.len() < MIN {
return;
}
let _ = verification_phrase(&data[..PK_SIZE], &data[PK_SIZE..MIN]);
});