Trait digest::XofReader

pub trait XofReader {
    fn read(&mut self, buffer: &mut [u8]);

    fn read_boxed(&mut self, n: usize) -> Box<[u8]> { ... }
}

Trait for reader types which are used to extract extendable output from a XOF (extendable-output function) result.

Required Methods

fn read(&mut self, buffer: &mut [u8])

Read output into the buffer. Can be called an unlimited number of times.

Provided Methods

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

Available on crate feature alloc only.

Read output into a boxed slice of the specified size.

Can be called an unlimited number of times in combination with read.

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> XofReader for XofReaderCoreWrapper<T>where
    T: XofReaderCore,
    T::BlockSize: IsLess<U256>,
    Le<T::BlockSize, U256>: NonZero,

Available on crate feature core-api only.