Enum block_padding::Pkcs7
[−]
[src]
pub enum Pkcs7 {}
Pad block with bytes with value equal to the number of bytes added.
PKCS#7 described in the RFC 5652.
use block_padding::{Pkcs7, Padding}; let msg = b"test"; let n = msg.len(); let mut buffer = [0xff; 16]; buffer[..n].copy_from_slice(msg); let padded_msg = Pkcs7::pad(&mut buffer, n, 8).unwrap(); assert_eq!(padded_msg, b"test\x04\x04\x04\x04"); assert_eq!(Pkcs7::unpad(&padded_msg).unwrap(), msg);
let padded_msg = Pkcs7::pad(&mut buffer, n, 2).unwrap(); assert_eq!(padded_msg, b"test\x02\x02"); assert_eq!(Pkcs7::unpad(&padded_msg).unwrap(), msg);
In addition to conditions stated in the Padding
trait documentation,
pad_block
will return PadError
if block.len() > 255
, and in case of
pad
if block_size > 255
.
Trait Implementations
impl Padding for Pkcs7
[src]
fn pad_block(block: &mut [u8], pos: usize) -> Result<(), PadError>
[src]
Pads block
filled with data up to pos
. Read more
fn unpad(data: &[u8]) -> Result<&[u8], UnpadError>
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Unpad given data
by truncating it according to the used padding. In case of the malformed padding will return UnpadError
Read more
fn pad(
buf: &mut [u8],
pos: usize,
block_size: usize
) -> Result<&mut [u8], PadError>
[src]
buf: &mut [u8],
pos: usize,
block_size: usize
) -> Result<&mut [u8], PadError>
Pads message with length pos
in the provided buffer. Read more