Struct block_padding::Iso7816

pub struct Iso7816;

Pad block with byte sequence \x80 00...00 00.

use block_padding::{Iso7816, Padding};
use generic_array::{GenericArray, typenum::U8};

let msg = b"test";
let pos = msg.len();
let mut block: GenericArray::<u8, U8> = [0xff; 8].into();
block[..pos].copy_from_slice(msg);
Iso7816::pad(&mut block, pos);
assert_eq!(&block[..], b"test\x80\x00\x00\x00");
let res = Iso7816::unpad(&block).unwrap();
assert_eq!(res, msg);

Trait Implementations

impl Clone for Iso7816

fn clone(&self) -> Iso7816

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Iso7816

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

Formats the value using the given formatter.

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

const TYPE: PadType = PadType::Reversible

Padding type

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

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

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

Unpad data in the block.

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

Unpad data in the blocks.

impl Copy for Iso7816