Struct Hmac

pub struct Hmac<H: HashFunction + Clone> { /* private fields */ }

Constant-time HMAC implementation.

Implementations

impl<H> Hmac<H>

where H: HashFunction + Clone, H::Output: AsRef<[u8]> + Clone,

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

Create a new HMAC instance from key.

pub fn update(&mut self, data: &[u8]) -> Result<()>

Feed additional data into the MAC.

pub fn finalize(&mut self) -> Result<Vec<u8>>

Finalise and return the tag.

pub fn mac(key: &[u8], data: &[u8]) -> Result<Vec<u8>>

One-shot MAC helper.

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

Constant-time verification of tag against key / data.

Trait Implementations

impl<H: Clone + HashFunction + Clone> Clone for Hmac<H>

fn clone(&self) -> Hmac<H>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<H: HashFunction + Clone> Drop for Hmac<H>

fn drop(&mut self)

Executes the destructor for this type.

impl<H> SecureZeroingType for Hmac<H>

where H: HashFunction + Default + Clone,

fn zeroed() -> Self

Create a zeroed instance

fn secure_clone(&self) -> Self

Create a secure clone that preserves security properties

impl<H: HashFunction + Clone> Zeroize for Hmac<H>

fn zeroize(&mut self)

Zero out this object from memory using Rust intrinsics which ensure the zeroization operation is not “optimized away” by the compiler.