Struct Okm

pub struct Okm<'a, L: KeyType> {
    prk: &'a Prk,
    info_bytes: Box<[u8]>,
    info_len: usize,
    len: L,
}

An HKDF OKM (Output Keying Material)

Intentionally not Clone or Copy as an OKM is generally only safe to use once.

Fields

prk: &'a Prk

info_bytes: Box<[u8]>

info_len: usize

len: L

Implementations

impl<L: KeyType> Okm<'_, L>

pub fn len(&self) -> &L

The OkmLength given to Prk::expand().

pub fn fill(self, out: &mut [u8]) -> Result<(), Unspecified>

Fills out with the output of the HKDF-Expand operation for the given inputs.

Errors

error::Unspecified if the requested output length differs from the length specified by L: KeyType.

Trait Implementations

impl<L: KeyType> Debug for Okm<'_, L>

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

Formats the value using the given formatter.

impl<L: KeyType> Drop for Okm<'_, L>

fn drop(&mut self)

Executes the destructor for this type.

impl From<Okm<'_, &'static Algorithm>> for HeaderProtectionKey

fn from(okm: Okm<'_, &'static Algorithm>) -> Self

Converts to this type from the input type.

impl From<Okm<'_, &'static Algorithm>> for UnboundCipherKey

fn from(okm: Okm<'_, &'static Algorithm>) -> Self

Converts to this type from the input type.

impl From<Okm<'_, &'static Algorithm>> for UnboundKey

fn from(okm: Okm<'_, &'static Algorithm>) -> Self

Converts to this type from the input type.

impl From<Okm<'_, Algorithm>> for Key

fn from(okm: Okm<'_, Algorithm>) -> Self

Converts to this type from the input type.

impl From<Okm<'_, Algorithm>> for Prk

fn from(okm: Okm<'_, Algorithm>) -> Self

Converts to this type from the input type.

impl From<Okm<'_, Algorithm>> for Salt

fn from(okm: Okm<'_, Algorithm>) -> Self

Converts to this type from the input type.