Crate crc32_v2 

CRC32 V2

This crate provides a simple CRC32 implementation in Rust.

Usage

To use this crate, add the following to your Cargo.toml file:

[dependencies]
crc32_v2 = "0.0.4"

Then, you can use the crc32 or crc32_little functions to calculate the CRC32 checksum of a byte buffer.

Example

use crc32_v2::byfour::crc32_little;
use crc32_v2::crc32;

let crc = crc32(0, &[0u8, 1u8, 2u8, 3u8]);
assert_eq!(crc, 0x8BB98613);
let crc_little = crc32_little(crc, &[0u8, 1u8, 2u8, 3u8]);
assert_eq!(crc, 0x8BB98613);

Implementation Details

The CRC32 algorithm is implemented using a standard polynomial and lookup tables for optimization.

The crc32 function takes two parameters:

• start_crc: the initial CRC32 value (usually 0)
• buf: a slice containing the input bytes

It returns a u32, which is the CRC32 checksum of the input buffer.

Modules

byfour

crc32tables

Functions

crc32

This function calculates the CRC32 checksum of a byte buffer using a standard CRC32 algorithm.