ableos_userland/libraries/cryptography/src/hashing/mod.rs

pub fn checksum<T: AsRef<[u8]>>(input: T) -> u64 {
    let input_bytes = input.as_ref();

    let mut checksum: u64 = 0;
    for &byte in input_bytes {
        checksum = checksum.wrapping_add(byte as u64);
    }

    checksum
}