A simple wrapper around the RustCrypto hmac and sha1 crates for simple HMAC-SHA1 generation.
As the crate is now a thin wrapper around RustCrypto, please note that this crate can be replaced with the following code:
use sha1::Sha1;
use hmac::{Hmac, Mac};
pub fn main() {
...
// Create the hasher with the key. We can use expect for Hmac algorithms as they allow arbitrary key sizes.
let mut hasher: Hmac<Sha1> = Mac::new_from_slice(key) .expect("HMAC algoritms can take keys of any size");
// hash the message
hasher.update(message);
// finalize the hash and convert to a static array
let hmac: [u8;20] = hasher.finalize().into_bytes().into()
...
}To import rust-hmac-sha1 add the following to your Cargo.toml:
[dependencies]
hmac-sha1 = "^0.2"To use rust-hmac-sha1, simply use the single provided function:
let hmac_digest: [u8; hmac_sha1::SHA1_DIGEST_BYTES] = hmac_sha1::hmac_sha1(key, message);Any contributions are welcome.
This was implemented as a learning experience - an implementation for hmac-sha1 from just a SHA1 hasher is included in 0.1.x versions.
This crate is licensed under the BSD 3-Clause license.
This crate also depends on the RustCrypto Project to provide the underlying cryptographic implementations. These crates are dual licensed under MIT and Apache-2.0.