81 lines
2.9 KiB
Rust
81 lines
2.9 KiB
Rust
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// External SHA-256 oracle cross-check для mt-entry composite hashes.
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// Pass 25 (Independent Oracle / Differential Check) per CRITIC.md.
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//
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// Cross-checks output mt-crypto::hash() (через mt-codec::domain) против
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// hardcoded hex digests computed via Python `hashlib.sha256` —
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// независимая reference implementation. См. scripts/oracle_python_sha256.py.
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use mt_crypto::PUBLIC_KEY_SIZE;
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use mt_entry::{candidate_vdf_init, nr_sort_key, selection_sort_key};
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use mt_state::NodeId;
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fn fixed(byte: u8, len: usize) -> Vec<u8> {
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vec![byte; len]
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}
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#[test]
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fn oracle_candidate_vdf_init_matches_python_hashlib() {
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// Inputs: t_r = [0x11; 32], cba = [0x22; 32], node_id = [0x33; 32]
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let t_r: [u8; 32] = fixed(0x11, 32).try_into().unwrap();
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let cba: [u8; 32] = fixed(0x22, 32).try_into().unwrap();
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let node_id: NodeId = fixed(0x33, 32).try_into().unwrap();
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// Expected from python3 scripts/oracle_python_sha256.py:
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// candidate_vdf_init(t_r=11..,cba=22..,node_id=33..)
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// = 8ab91f2efddae1eea93ef611d1a3958225ca5a0e5028b99bcd4b6ad5b5bce13f
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let expected_hex = "8ab91f2efddae1eea93ef611d1a3958225ca5a0e5028b99bcd4b6ad5b5bce13f";
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let expected = hex_to_bytes(expected_hex);
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let actual = candidate_vdf_init(&t_r, &cba, &node_id);
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assert_eq!(
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actual, expected,
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"candidate_vdf_init output расходится с Python hashlib oracle"
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);
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}
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#[test]
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fn oracle_selection_sort_key_matches_python_hashlib() {
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let t_r: [u8; 32] = fixed(0x11, 32).try_into().unwrap();
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let cba: [u8; 32] = fixed(0x22, 32).try_into().unwrap();
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let node_id: NodeId = fixed(0x33, 32).try_into().unwrap();
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// Expected: 05f1da48cd21230d56a1c39b0fdf95d26d0f888f317a21ceab4a1bf320d287e6
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let expected_hex = "05f1da48cd21230d56a1c39b0fdf95d26d0f888f317a21ceab4a1bf320d287e6";
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let expected = hex_to_bytes(expected_hex);
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let actual = selection_sort_key(&t_r, &cba, &node_id);
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assert_eq!(
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actual, expected,
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"selection_sort_key output расходится с Python hashlib oracle"
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);
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}
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#[test]
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fn oracle_nr_sort_key_matches_python_hashlib() {
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let t_r: [u8; 32] = fixed(0x11, 32).try_into().unwrap();
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let cba: [u8; 32] = fixed(0x22, 32).try_into().unwrap();
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let pubkey: [u8; PUBLIC_KEY_SIZE] = {
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let mut p = [0u8; PUBLIC_KEY_SIZE];
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p.iter_mut().for_each(|b| *b = 0x33);
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p
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};
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// Expected: 16d95f1d0f220f64a8448f1732ebb1adce639c93f48f53de6c5c7e0ad4b34e30
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let expected_hex = "16d95f1d0f220f64a8448f1732ebb1adce639c93f48f53de6c5c7e0ad4b34e30";
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let expected = hex_to_bytes(expected_hex);
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let actual = nr_sort_key(&t_r, &cba, &pubkey);
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assert_eq!(
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actual, expected,
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"nr_sort_key output расходится с Python hashlib oracle"
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);
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}
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fn hex_to_bytes(s: &str) -> [u8; 32] {
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let mut out = [0u8; 32];
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for i in 0..32 {
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out[i] = u8::from_str_radix(&s[i * 2..i * 2 + 2], 16).expect("invalid hex");
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}
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out
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}
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