openssl::pkey_ctx

Struct HkdfMode

pub struct HkdfMode(/* private fields */);

Expand description

HKDF modes of operation.

Implementations§

impl HkdfMode

pub const EXTRACT_THEN_EXPAND: Self

This is the default mode. Calling derive on a PkeyCtxRef set up for HKDF will perform an extract followed by an expand operation in one go. The derived key returned will be the result after the expand operation. The intermediate fixed-length pseudorandom key K is not returned.

pub const EXTRACT_ONLY: Self

In this mode calling derive will just perform the extract operation. The value returned will be the intermediate fixed-length pseudorandom key K.

The digest, key and salt values must be set before a key is derived or an error occurs.

pub const EXPAND_ONLY: Self

In this mode calling derive will just perform the expand operation. The input key should be set to the intermediate fixed-length pseudorandom key K returned from a previous extract operation.

The digest, key and info values must be set before a key is derived or an error occurs.

Auto Trait Implementations§

impl Freeze for HkdfMode

impl RefUnwindSafe for HkdfMode

impl Send for HkdfMode

impl Sync for HkdfMode

impl Unpin for HkdfMode

impl UnwindSafe for HkdfMode

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

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