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bip360 test vectors: control block now reflects use of non-standard

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jbride
2026-04-30 10:03:53 -06:00
committed by notmike
parent 907db20348
commit 8d28eb4517
2 changed files with 10 additions and 5 deletions
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13
bip-0360/ref-impl/rust/tests/p2mr_construction.rs
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@@ -213,10 +213,15 @@ fn process_test_vector_p2mr(test_vector: &TestVector) -> anyhow::Result<()> {
let leaf_id = script_to_id.get(script)
.unwrap_or_else(|| panic!("leaf script not found in script_to_id map: {}", hex::encode(script.as_bytes())));
let derived_control_block: P2mrControlBlock = P2mrControlBlock{
merkle_branch: merkle_branch.clone(),
};
let derived_serialized_control_block = hex::encode(derived_control_block.serialize());
// BIP341 control byte layout: bits 7..1 = leaf_version, bit 0 = parity.
// `& 0xfe` (11111110) masks off bit 0, isolating the leaf version in the upper 7 bits.
// `| 0x01` sets bit 0 to 1: P2MR has no key-spend path, so parity is always 1.
let control_byte = (version.to_consensus() & 0xfe) | 0x01u8;
let mut cb_buf = vec![control_byte];
merkle_branch
.encode(&mut cb_buf)
.expect("encode should not fail");
let derived_serialized_control_block = hex::encode(&cb_buf);
let expected_cb = &expected_control_blocks[*leaf_id as usize];
assert_eq!(