Struct Hkdf 

pub struct Hkdf<T: HashEngine> { /* private fields */ }

HMAC-based Extract-and-Expand Key Derivation Function (HKDF).

Implementations

impl<T> Hkdf<T>

where T: Default + HashEngine,

pub fn new(salt: &[u8], ikm: &[u8]) -> Self

Initializes a HKDF by performing the extract step.

pub fn expand(&self, info: &[u8], okm: &mut [u8]) -> Result<(), MaxLengthError>

Expand the key to generate output key material in okm.

Expand may be called multiple times to derive multiple keys, but the info must be independent from the ikm for security.

pub fn expand_to_len( &self, info: &[u8], len: usize, ) -> Result<Vec<u8>, MaxLengthError>

Expand the key to specified length.

Expand may be called multiple times to derive multiple keys, but the info must be independent from the ikm for security.

Trait Implementations

impl<T: Clone + HashEngine> Clone for Hkdf<T>

where T::Hash: Clone,

fn clone(&self) -> Hkdf<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: HashEngine> Debug for Hkdf<T>

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

Formats the value using the given formatter.

impl<T: Copy + HashEngine> Copy for Hkdf<T>

where T::Hash: Copy,