Trait Padding

pub trait Padding<BlockSize: ArrayLength<u8>> {
    const TYPE: PadType;

    // Required methods
    fn pad(block: &mut Block<BlockSize>, pos: usize);
    fn unpad(block: &Block<BlockSize>) -> Result<&[u8], UnpadError>;

    // Provided method
    fn unpad_blocks(blocks: &[Block<BlockSize>]) -> Result<&[u8], UnpadError> { ... }
}

Trait for padding messages divided into blocks

Required Associated Constants

const TYPE: PadType

Padding type

Required Methods

fn pad(block: &mut Block<BlockSize>, pos: usize)

Pads block filled with data up to pos (i.e length of a message stored in the block is equal to pos).

Panics

If pos is bigger than BlockSize. Most padding algorithms also panic if they are equal.

fn unpad(block: &Block<BlockSize>) -> Result<&[u8], UnpadError>

Unpad data in the block.

Returns Err(UnpadError) if the block contains malformed padding.

Provided Methods

fn unpad_blocks(blocks: &[Block<BlockSize>]) -> Result<&[u8], UnpadError>

Unpad data in the blocks.

Returns Err(UnpadError) if the block contains malformed padding.

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, B: ArrayLength<u8>> Padding<B> for T

where T: RawPadding,

const TYPE: PadType = T::TYPE