Struct block_padding::NoPadding
source · [−]pub struct NoPadding;
Expand description
Don’t pad the data. Useful for key wrapping.
use block_padding::{NoPadding, 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);
NoPadding::pad(&mut block, pos);
assert_eq!(&block[..], b"test\xff\xff\xff\xff");
let res = NoPadding::unpad(&block).unwrap();
assert_eq!(res, b"test\xff\xff\xff\xff");
Note that even though the passed length of the message is equal to 4,
the size of unpadded message is equal to the block size of 8 bytes.
Also padded message contains “garbage” bytes stored in the block buffer.
Thus NoPadding
generally should not be used with data length of which
is not multiple of block size.
Trait Implementations
sourceimpl<B: ArrayLength<u8>> Padding<B> for NoPadding
impl<B: ArrayLength<u8>> Padding<B> for NoPadding
impl Copy for NoPadding
Auto Trait Implementations
impl RefUnwindSafe for NoPadding
impl Send for NoPadding
impl Sync for NoPadding
impl Unpin for NoPadding
impl UnwindSafe for NoPadding
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcepub fn to_owned(&self) -> T
pub fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
sourcepub fn clone_into(&self, target: &mut T)
pub fn clone_into(&self, target: &mut T)
🔬 This is a nightly-only experimental API. (
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more