#[cfg(not(feature = "fast-sha1"))]
mod _impl {
use super::Sha1Digest;
#[derive(Default, Clone)]
pub struct Sha1(sha1::Sha1);
impl Sha1 {
pub fn update(&mut self, d: &[u8]) {
self.0.update(d)
}
pub fn digest(self) -> Sha1Digest {
self.0.digest().bytes()
}
}
}
pub type Sha1Digest = [u8; 20];
#[cfg(feature = "fast-sha1")]
mod _impl {
use super::Sha1Digest;
use fastsha1::Digest;
#[derive(Default, Clone)]
pub struct Sha1(fastsha1::Sha1);
impl Sha1 {
pub fn update(&mut self, d: &[u8]) {
self.0.update(d)
}
pub fn digest(self) -> Sha1Digest {
self.0.finalize().into()
}
}
}
pub use _impl::Sha1;
pub fn crc32_update(previous_value: u32, bytes: &[u8]) -> u32 {
crc::crc32::update(previous_value, &crc::crc32::IEEE_TABLE, bytes)
}
pub use crc::crc32::checksum_ieee as crc32;