| //! # crc |
| //! Rust implementation of CRC(16, 32, 64) |
| //! |
| //! ## Usage |
| //! ### Compute CRC16 |
| //! ```rust |
| //! 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 |
| //! ```rust |
| //! 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 |
| //! ```rust |
| //! 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); |
| //! ``` |
| |
| #![cfg_attr(not(feature = "std"), no_std)] |
| |
| pub mod crc16; |
| pub mod crc32; |
| pub mod crc64; |
| mod util; |
| |
| pub use self::crc16::Hasher16; |
| pub use self::crc32::Hasher32; |
| pub use self::crc64::Hasher64; |