Struct Hash

pub struct Hash<'d, T: Instance, D = NoDma> { /* private fields */ }

HASH driver.

Implementations

impl<'d, T: Instance, D> Hash<'d, T, D>

pub fn new( peripheral: impl Peripheral<P = T> + 'd, dma: impl Peripheral<P = D> + 'd, _irq: impl Binding<T::Interrupt, InterruptHandler<T>> + 'd, ) -> Self

Instantiates, resets, and enables the HASH peripheral.

pub fn start<'c>( &mut self, algorithm: Algorithm, format: DataType, key: Option<&'c [u8]>, ) -> Context<'c>

Starts computation of a new hash and returns the saved peripheral state.

pub fn update_blocking<'c>(&mut self, ctx: &mut Context<'c>, input: &[u8])

Restores the peripheral state using the given context, then updates the state with the provided data. Peripheral state is saved upon return.

pub fn finish_blocking<'c>( &mut self, ctx: Context<'c>, digest: &mut [u8], ) -> usize

Computes a digest for the given context. The digest buffer must be large enough to accomodate a digest for the selected algorithm. The largest returned digest size is 128 bytes for SHA-512. Panics if the supplied digest buffer is too short.