Function remove_padding 

pub fn remove_padding(data: &[u8]) -> Result<Vec<u8>>

Removes PKCS#7 padding from padded data.

Validates that the padding is correct before removing it. The padding value indicates how many bytes to remove.

Arguments

• data - The padded data

Returns

Returns the original data with padding removed.

Errors

Returns an error if:

• The data is empty
• The padding length is invalid (0, > 16, or > data length)
• The padding bytes are inconsistent

Examples

use ruscrypt::utils::{pad_data_to_size, remove_padding};

let original = b"Hello, World!";
let padded = pad_data_to_size(original, 16);
let unpadded = remove_padding(&padded).unwrap();
assert_eq!(original, &unpadded[..]);