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Policy: Relax MIN_STANDARD_TX_NONWITNESS_SIZE to 65 

Align with Bitcoin Core's policy by reducing the minimum non-witness
transaction size from 82 to 65 bytes. This change allows for more
minimal transaction cases (e.g., 1 input with 1 OP_RETURN output),
while still maintaining protection against CVE-2017-12842.

Matches bitcoin/bitcoin#26398
This commit is contained in:
jrakibi 2025-02-25 00:30:31 +07:00
parent 81deddd0a9
commit 2fe3687899
1 changed files with 2 additions and 2 deletions
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bitcoin/src/policy.rs
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@ -18,8 +18,8 @@ use super::constants::{MAX_BLOCK_SIGOPS_COST, WITNESS_SCALE_FACTOR};
/// Maximum weight of a transaction for it to be relayed by most nodes on the network /// Maximum weight of a transaction for it to be relayed by most nodes on the network
pub const MAX_STANDARD_TX_WEIGHT: u32 = 400_000; pub const MAX_STANDARD_TX_WEIGHT: u32 = 400_000;
/// Minimum non-witness size for a standard transaction (1 SegWit input + 1 P2WPKH output = 82 bytes) /// Minimum non-witness size for a standard transaction, set to 65 bytes.
pub const MIN_STANDARD_TX_NONWITNESS_SIZE: u32 = 82; pub const MIN_STANDARD_TX_NONWITNESS_SIZE: u32 = 65;
/// Maximum number of sigops in a standard tx. /// Maximum number of sigops in a standard tx.
pub const MAX_STANDARD_TX_SIGOPS_COST: u32 = MAX_BLOCK_SIGOPS_COST as u32 / 5; pub const MAX_STANDARD_TX_SIGOPS_COST: u32 = MAX_BLOCK_SIGOPS_COST as u32 / 5;