Enum block_padding::NoPadding

pub enum NoPadding {}

Don't pad the data. Useful for key wrapping. Padding will fail if the data cannot be fitted into blocks without padding.

use block_padding::{NoPadding, Padding};

let msg = b"test";
let n = msg.len();
let mut buffer = [0xff; 16];
buffer[..n].copy_from_slice(msg);
let padded_msg = NoPadding::pad(&mut buffer, n, 4).unwrap();
assert_eq!(padded_msg, b"test");
assert_eq!(NoPadding::unpad(&padded_msg).unwrap(), msg);

let padded_msg = NoPadding::pad(&mut buffer, n, 2).unwrap();
assert_eq!(padded_msg, b"test");
assert_eq!(NoPadding::unpad(&padded_msg).unwrap(), msg);

Trait Implementations

impl Padding for NoPadding

fn pad_block(block: &mut [u8], pos: usize) -> Result<(), PadError>

Pads block filled with data up to pos.

fn pad(
    buf: &mut [u8],
    pos: usize,
    block_size: usize
) -> Result<&mut [u8], PadError>

Pads message with length pos in the provided buffer.

fn unpad(data: &[u8]) -> Result<&[u8], UnpadError>

Unpad given data by truncating it according to the used padding. In case of the malformed padding will return UnpadError