Trait coins_bip32::ecdsa::signature::digest::XofReader

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

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

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], Global>

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 as BlockSizeUser>::BlockSize: IsLess<UInt<UInt<UInt<UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>, B0>, B0>, B0>>, <<T as BlockSizeUser>::BlockSize as IsLess<UInt<UInt<UInt<UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>, B0>, B0>, B0>>>::Output: NonZero,