Crate crc

crc

Rust implementation of CRC(16, 32, 64)

Usage

Compute CRC16

use crc::{crc16, Hasher16};

assert_eq!(crc16::checksum_x25(b"123456789"), 0x906e);
assert_eq!(crc16::checksum_usb(b"123456789"), 0xb4c8);

// use provided or custom polynomial
let mut digest = crc16::Digest::new(crc16::X25);
digest.write(b"123456789");
assert_eq!(digest.sum16(), 0x906e);

// with initial
let mut digest = crc16::Digest::new_with_initial(crc16::X25, 0u16);
digest.write(b"123456789");
assert_eq!(digest.sum16(), 0x906e);

Compute CRC32

use crc::{crc32, Hasher32};

// CRC-32-IEEE being the most commonly used one
assert_eq!(crc32::checksum_ieee(b"123456789"), 0xcbf43926);
assert_eq!(crc32::checksum_castagnoli(b"123456789"), 0xe3069283);
assert_eq!(crc32::checksum_koopman(b"123456789"), 0x2d3dd0ae);

// use provided or custom polynomial
let mut digest = crc32::Digest::new(crc32::IEEE);
digest.write(b"123456789");
assert_eq!(digest.sum32(), 0xcbf43926);

// with initial
let mut digest = crc32::Digest::new_with_initial(crc32::IEEE, 0u32);
digest.write(b"123456789");
assert_eq!(digest.sum32(), 0xcbf43926);

Compute CRC64

use crc::{crc64, Hasher64};

assert_eq!(crc64::checksum_ecma(b"123456789"), 0x995dc9bbdf1939fa);
assert_eq!(crc64::checksum_iso(b"123456789"), 0xb90956c775a41001);

// use provided or custom polynomial
let mut digest = crc64::Digest::new(crc64::ECMA);
digest.write(b"123456789");
assert_eq!(digest.sum64(), 0x995dc9bbdf1939fa);

// with initial
let mut digest = crc64::Digest::new_with_initial(crc64::ECMA, 0u64);
digest.write(b"123456789");
assert_eq!(digest.sum64(), 0x995dc9bbdf1939fa);

Re-exports

pub use self::crc16::Hasher16;

pub use self::crc32::Hasher32;

pub use self::crc64::Hasher64;

Modules

crc16
crc32
crc64