Trait hmac::NewMac

pub trait NewMac: Sized {
    type KeySize: ArrayLength<u8>;

    fn new(key: &GenericArray<u8, Self::KeySize>) -> Self;

    fn new_from_slice(key: &[u8]) -> Result<Self, InvalidKeyLength> { ... }
}

Instantiate a Mac algorithm.

Required Associated Types

type KeySize: ArrayLength<u8>

Key size in bytes with which cipher guaranteed to be initialized.

Required Methods

fn new(key: &GenericArray<u8, Self::KeySize>) -> Self

Initialize new MAC instance from key with fixed size.

Provided Methods

fn new_from_slice(key: &[u8]) -> Result<Self, InvalidKeyLength>

Initialize new MAC instance from key with variable size.

Default implementation will accept only keys with length equal to KeySize, but some MACs can accept range of key lengths.

Implementors

impl<D> NewMac for Hmac<D>where
    D: Update + BlockInput + FixedOutput + Reset + Default + Clone,
    D::BlockSize: ArrayLength<u8>,
    D::OutputSize: ArrayLength<u8>,

type KeySize = <D as BlockInput>::BlockSize