Function add_message_signed_checksum

bitvm/src/signatures/winternitz.rs:1053–1062

(ps: &Parameters, mut message_digits: Vec<i32>)

        }

        fn add_message_signed_checksum(ps: &Parameters, mut message_digits: Vec<i32>) -> Vec<i32> {
            debug_assert_eq!(message_digits.len(), ps.message_digit_len as usize);
            let checksum_digits = checksum_to_digits(
                signed_checksum(ps, &message_digits),
                ps.max_digit() + 1,
                ps.checksum_digit_len,
            );
            message_digits.extend(checksum_digits.iter().map(|&x| x as i32));
            message_digits
        }

        fn sign_signed_digits(
            ps: &Parameters,