Function aes_frast::padding_128bit::de_zeros

pub fn de_zeros(input_vec: &mut Vec<u8>) -> usize

Remove Zeros padding

• parameter input_vec: the vec that contains original data.
• return : the removed bytes’ length.

Attention! If the origin data ends with zero(s) (one or more 0xFF), depadding will remove all these zeros.

Examples

use aes_frast::padding_128bit::de_zeros;

let mut zeros = vec![0xFFu8, 0xFFu8, 0xFFu8, 0xFFu8, 0xFFu8, 0xFFu8, 0xFFu8, 0x00u8,
                     0x00u8, 0x00u8, 0x00u8, 0x00u8, 0x00u8, 0x00u8, 0x00u8, 0x00u8];

let padding_length = de_zeros(&mut zeros);

assert_eq!(padding_length, 9);
assert_eq!(zeros, vec![0xFFu8; 7]);