Trait VariableOutputReset

pub trait VariableOutputReset: VariableOutput + Reset {
    // Required method
    fn finalize_variable_reset(
        &mut self,
        out: &mut [u8],
    ) -> Result<(), InvalidBufferSize>;

    // Provided method
    fn finalize_boxed_reset(&mut self) -> Box<[u8]> { ... }
}

Trait for hash functions with variable-size output able to reset themselves.

Required Methods

fn finalize_variable_reset( &mut self, out: &mut [u8], ) -> Result<(), InvalidBufferSize>

Write result into the output buffer and reset the hasher state.

Returns Err(InvalidOutputSize) if out size is not equal to self.output_size().

Provided Methods

fn finalize_boxed_reset(&mut self) -> Box<[u8]>

Available on crate feature alloc only.

Retrieve result into a boxed slice 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.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T> VariableOutputReset for RtVariableCoreWrapper<T>

where T: VariableOutputCore + UpdateCore + Reset, T::BlockSize: IsLess<U256>, Le<T::BlockSize, U256>: NonZero,

Available on crate feature core-api only.