Struct HmacStreamingAdapter 

pub struct HmacStreamingAdapter<D: EagerHash>
where
    Hmac<D>: HmacMac + KeyInit,
{ /* private fields */ }

Generic streaming MAC adapter wrapping hmac::Hmac<D>.

Implements StreamingMac: feed chunks with update, then consume with finalize or verify.

Implementations

impl<D: EagerHash> HmacStreamingAdapter<D>

where Hmac<D>: HmacMac + KeyInit,

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

Create a new streaming adapter with the given key.

Returns CryptoError::InvalidKey if the key is rejected by HMAC.

Trait Implementations

impl<D: EagerHash + Send> StreamingMac for HmacStreamingAdapter<D>

where Hmac<D>: HmacMac + KeyInit + Send,

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

Feed additional data into the MAC state.

fn finalize(self, out: &mut [u8]) -> Result<(), CryptoError>

Consume the MAC state and write the tag into out.

fn verify(self, expected: &[u8]) -> Result<(), CryptoError>

Consume the MAC state, compute the tag, and verify against expected in constant time.