acr 0.4.3

All shared code across the whole Acridotheres project
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

use dh::Readable;
use libaes::Cipher;
use std::io::Result;

pub fn encrypt<'a>(
    file: &'a mut dyn Readable<'a>,
    key: &[u8; 32],
    iv: &[u8; 16],
    offset: u64,
    size: u64,
) -> Result<Vec<u8>> {
    let cipher = Cipher::new_256(key);
    let data = file.read_bytes_at(offset, size)?;
    Ok(cipher.cbc_encrypt(iv, &data))
}

pub fn decrypt<'a>(
    file: &'a mut dyn Readable<'a>,
    key: &[u8; 32],
    iv: &[u8; 16],
    offset: u64,
    size: u64,
) -> Result<Vec<u8>> {
    let cipher = Cipher::new_256(key);
    let data = file.read_bytes_at(offset, size)?;
    Ok(cipher.cbc_decrypt(iv, &data))
}