crc32c

Last update: 06/04/2026

crc32c

Fast CRC-32-Castagnoli implementation in Rust

Latest version: 0.6.8

Maintenance score

Safety score

100

Popularity score

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Security

	Vulnerabilities
Version	Suggest	Low	Medium	High	Critical

0.6.8	0	0	0	0	0
0.6.7	0	0	0	0	0
0.6.6	0	0	0	0	0
0.6.5	0	0	0	0	0
0.6.4	0	0	0	0	0
0.6.3	0	0	0	0	0
0.6.2	0	0	0	0	0
0.6.1	0	0	0	0	0
0.6.0	0	0	0	0	0
0.5.0	0	0	0	0	0
0.4.0	0	0	0	0	0
0.3.1	0	0	0	0	0
0.3.0	0	0	0	0	0
0.2.0	0	0	0	0	0
0.1.1	0	0	0	0	0
0.1.0	0	0	0	0	0

Stability

Latest release:

0.6.8 - This version may not be safe as it has not been updated for a long time. Find out if your coding project uses this component and get notified of any reported security vulnerabilities with Meterian-X Open Source Security Platform

Licensing

Maintain your licence declarations and avoid unwanted licences to protect your IP the way you intended.

Apache-2.0 - Apache License 2.0

Not a wildcard

Not proprietary

OSI Compliant

MIT - MIT License

Not a wildcard

Not proprietary

OSI Compliant

CRC32C

Rust implementation of the CRC-32-Castagnoli algorithm with hardware acceleration where possible.

Hardware acceleration on the following architectures:

x84-64 with SSE 4.2
- All stable versions of Rust
- If SSE 4.2 is enabled at compile time, it will only build the SSE implementation. Otherwise, the cpuid is used to find the best implementation at runtime.
aarch64 with crc feature
- Only available on rust version >= 1.80.0 or nightly

All other processors utilize a software fallback.

Usage

First, add this to your Cargo.toml:

[dependencies]
crc32c = "0.6"

extern crate crc32c;

fn main() {
    let message = b"Hello world!";
    let crc = crc32c::crc32c(message);

    println!("hash = {}", crc);
}

License

You may use this code under either the Apache 2.0 license or the MIT license, at your option.