Struct block_buffer::BlockBuffer

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pub struct BlockBuffer<BlockSize, Kind>
where BlockSize: ArrayLength<u8> + IsLess<U256>, Le<BlockSize, U256>: NonZero, Kind: BufferKind,
{ /* private fields */ }
Expand description

Buffer for block processing of data.

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impl<BlockSize, Kind> BlockBuffer<BlockSize, Kind>
where BlockSize: ArrayLength<u8> + IsLess<U256>, Le<BlockSize, U256>: NonZero, Kind: BufferKind,

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pub fn new(buf: &[u8]) -> Self

Create new buffer from slice.

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If slice length is not valid for used buffer kind.

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pub fn try_new(buf: &[u8]) -> Result<Self, Error>

Create new buffer from slice.

Returns an error if slice length is not valid for used buffer kind.

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pub fn digest_blocks( &mut self, input: &[u8], compress: impl FnMut(&[Block<BlockSize>]), )

Digest data in input in blocks of size BlockSize using the compress function, which accepts slice of blocks.

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pub fn reset(&mut self)

Reset buffer by setting cursor position to zero.

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pub fn pad_with_zeros(&mut self) -> &mut Block<BlockSize>

Pad remaining data with zeros and return resulting block.

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pub fn get_pos(&self) -> usize

Return current cursor position.

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pub fn get_data(&self) -> &[u8]

Return slice of data stored inside the buffer.

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pub fn set(&mut self, buf: Block<BlockSize>, pos: usize)

Set buffer content and cursor position.

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If pos is bigger or equal to block size.

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pub fn size(&self) -> usize

Return size of the internal buffer in bytes.

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pub fn remaining(&self) -> usize

Return number of remaining bytes in the internal buffer.

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impl<BlockSize> BlockBuffer<BlockSize, Eager>
where BlockSize: ArrayLength<u8> + IsLess<U256>, Le<BlockSize, U256>: NonZero,

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pub fn set_data( &mut self, data: &mut [u8], process_blocks: impl FnMut(&mut [Block<BlockSize>]), )

Set data to generated blocks.

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pub fn digest_pad( &mut self, delim: u8, suffix: &[u8], compress: impl FnMut(&Block<BlockSize>), )

Compress remaining data after padding it with delim, zeros and the suffix bytes. If there is not enough unused space, compress will be called twice.

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If suffix length is bigger than block size.

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pub fn len64_padding_be( &mut self, data_len: u64, compress: impl FnMut(&Block<BlockSize>), )

Pad message with 0x80, zeros and 64-bit message length using big-endian byte order.

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pub fn len64_padding_le( &mut self, data_len: u64, compress: impl FnMut(&Block<BlockSize>), )

Pad message with 0x80, zeros and 64-bit message length using little-endian byte order.

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pub fn len128_padding_be( &mut self, data_len: u128, compress: impl FnMut(&Block<BlockSize>), )

Pad message with 0x80, zeros and 128-bit message length using big-endian byte order.

Trait Implementations§

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impl<BlockSize, Kind> Clone for BlockBuffer<BlockSize, Kind>
where BlockSize: ArrayLength<u8> + IsLess<U256>, Le<BlockSize, U256>: NonZero, Kind: BufferKind,

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<BlockSize, Kind> Debug for BlockBuffer<BlockSize, Kind>
where BlockSize: ArrayLength<u8> + IsLess<U256> + Debug, Le<BlockSize, U256>: NonZero, Kind: BufferKind + Debug,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<BlockSize, Kind> Default for BlockBuffer<BlockSize, Kind>
where BlockSize: ArrayLength<u8> + IsLess<U256>, Le<BlockSize, U256>: NonZero, Kind: BufferKind,

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<BlockSize, Kind> Freeze for BlockBuffer<BlockSize, Kind>
where <BlockSize as ArrayLength<u8>>::ArrayType: Freeze,

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impl<BlockSize, Kind> RefUnwindSafe for BlockBuffer<BlockSize, Kind>
where <BlockSize as ArrayLength<u8>>::ArrayType: RefUnwindSafe, Kind: RefUnwindSafe,

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impl<BlockSize, Kind> Send for BlockBuffer<BlockSize, Kind>
where Kind: Send,

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impl<BlockSize, Kind> Sync for BlockBuffer<BlockSize, Kind>
where Kind: Sync,

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impl<BlockSize, Kind> Unpin for BlockBuffer<BlockSize, Kind>
where <BlockSize as ArrayLength<u8>>::ArrayType: Unpin, Kind: Unpin,

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impl<BlockSize, Kind> UnwindSafe for BlockBuffer<BlockSize, Kind>
where <BlockSize as ArrayLength<u8>>::ArrayType: UnwindSafe, Kind: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.