Struct Hmac 

pub struct Hmac<D: Digest> { /* private fields */ }

HMAC over the digest D.

The key is processed per FIPS 198-1: hashed if longer than the block size, zero-padded otherwise. Both padded keys are zeroized before the constructor returns.

Trait Implementations

impl<D: HmacDigest> Algorithm for Hmac<D>

const ID: &'static str = D::HMAC_ID

Stable ontology identifier for this algorithm.

const NAME: &'static str = D::HMAC_NAME

Human-facing display name (for example "SHA-256").

impl<D: Clone + Digest> Clone for Hmac<D>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<D: HmacDigest> Mac for Hmac<D>

const TAG_LEN: usize = D::OUTPUT_LEN

Tag length in bytes.

type Tag = <D as Digest>::Output

The fixed-size tag type.

fn new(key: &[u8]) -> Result<Self>

Create a MAC instance from a key of any length the algorithm accepts.

fn update(&mut self, data: &[u8])

Absorb more input.

fn finalize(self) -> Self::Tag

Consume the instance and produce the tag.

fn mac(key: &[u8], data: &[u8]) -> Result<Self::Tag, Error>

where Self: Sized,

One-shot authentication.

fn verify(key: &[u8], data: &[u8], tag: &[u8]) -> Result<(), Error>

where Self: Sized,

Constant-time tag verification.

impl SelfTest for Hmac<Sha256>

fn self_test() -> Result<()>

Run the algorithm’s known-answer test.

impl SelfTest for Hmac<Sha384>

fn self_test() -> Result<()>

Run the algorithm’s known-answer test.

impl SelfTest for Hmac<Sha512>

fn self_test() -> Result<()>

Run the algorithm’s known-answer test.

impl SelfTest for Hmac<Sha512_256>

fn self_test() -> Result<()>

Run the algorithm’s known-answer test.

impl SelfTest for Hmac<Sha3_256>

fn self_test() -> Result<()>

Run the algorithm’s known-answer test.

impl SelfTest for Hmac<Sha3_512>

fn self_test() -> Result<()>

Run the algorithm’s known-answer test.