Trait digest::ExtendableOutputReset

pub trait ExtendableOutputReset: ExtendableOutput + Reset {
    fn finalize_xof_reset(&mut self) -> Self::Reader;

    fn finalize_xof_reset_into(&mut self, out: &mut [u8]) { ... }
    fn finalize_boxed_reset(&mut self, output_size: usize) -> Box<[u8]> { ... }
}

Trait for hash functions with extendable-output (XOF) able to reset themselves.

Required Methods

fn finalize_xof_reset(&mut self) -> Self::Reader

Retrieve XOF reader and reset hasher instance state.

Provided Methods

fn finalize_xof_reset_into(&mut self, out: &mut [u8])

Finalize XOF, write result into out, and reset the hasher state.

fn finalize_boxed_reset(&mut self, output_size: usize) -> Box<[u8]>

Retrieve result into a boxed slice of the specified size and reset the hasher state.

Box<[u8]> is used instead of Vec<u8> to save stack space, since they have size of 2 and 3 words respectively.

Implementors

impl<T> ExtendableOutputReset for CoreWrapper<T> where
    T: ExtendableOutputCore + Reset,
    T::BlockSize: IsLess<U256>,
    Le<T::BlockSize, U256>: NonZero,
    <T::ReaderCore as BlockSizeUser>::BlockSize: IsLess<U256>,
    Le<<T::ReaderCore as BlockSizeUser>::BlockSize, U256>: NonZero,