Struct hkdf::HkdfExtract

pub struct HkdfExtract<H, I = Hmac<H>> where
    H: OutputSizeUser,
    I: HmacImpl<H>,  { /* private fields */ }

Structure representing the streaming context of an HKDF-Extract operation

let mut extract_ctx = HkdfExtract::<Sha256>::new(Some(b"mysalt"));
extract_ctx.input_ikm(b"hello");
extract_ctx.input_ikm(b" world");
let (streamed_res, _) = extract_ctx.finalize();

let (oneshot_res, _) = Hkdf::<Sha256>::extract(Some(b"mysalt"), b"hello world");
assert_eq!(streamed_res, oneshot_res);

Implementations

impl<H, I> HkdfExtract<H, I> where
    H: OutputSizeUser,
    I: HmacImpl<H>, 

pub fn new(salt: Option<&[u8]>) -> Self

Initiates the HKDF-Extract context with the given optional salt

pub fn input_ikm(&mut self, ikm: &[u8])

Feeds in additional input key material to the HKDF-Extract context

pub fn finalize(self) -> (Output<H>, Hkdf<H, I>)

Completes the HKDF-Extract operation, returning both the generated pseudorandom key and Hkdf struct for expanding.

Trait Implementations

impl<H: Clone, I: Clone> Clone for HkdfExtract<H, I> where
    H: OutputSizeUser,
    I: HmacImpl<H>, 

fn clone(&self) -> HkdfExtract<H, I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<H, I> Debug for HkdfExtract<H, I> where
    H: OutputSizeUser + AlgorithmName,
    I: HmacImpl<H>, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.