Trait block_padding::Padding

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

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

    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 paddin 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 containts malformed padding.

Provided Methods

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

Unpad data in the blocks.

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

Implementors

impl<B: ArrayLength<u8>> Padding<B> for AnsiX923

const TYPE: PadType = PadType::Reversible

impl<B: ArrayLength<u8>> Padding<B> for Iso7816

const TYPE: PadType = PadType::Reversible

impl<B: ArrayLength<u8>> Padding<B> for Iso10126

const TYPE: PadType = PadType::Reversible

impl<B: ArrayLength<u8>> Padding<B> for NoPadding

const TYPE: PadType = PadType::NoPadding

impl<B: ArrayLength<u8>> Padding<B> for Pkcs7

const TYPE: PadType = PadType::Reversible

impl<B: ArrayLength<u8>> Padding<B> for ZeroPadding

const TYPE: PadType = PadType::Ambiguous