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This commit is contained in:
Julien Cretin
2022-01-21 18:01:10 +01:00
committed by Julien Cretin
parent b59df7001f
commit d47ca7fa54
1 changed files with 14 additions and 4 deletions
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18
libraries/crypto/src/cbc.rs
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@@ -16,8 +16,13 @@ use super::util::{xor_block_16, Block16};
use crate::aes256::{DecryptionKey, EncryptionKey};
use core::convert::TryInto;
pub fn cbc_encrypt(key: &EncryptionKey, mut iv: Block16, blocks: &mut [u8]) {
for block in blocks.chunks_mut(16) {
/// Encrypts a byte slice.
///
/// # Panics
///
/// Panics if the byte slice is not a multiple of the block size (16 bytes).
pub fn cbc_encrypt(key: &EncryptionKey, mut iv: Block16, bytes: &mut [u8]) {
for block in bytes.chunks_mut(16) {
let block: &mut Block16 = block.try_into().unwrap();
xor_block_16(block, &iv);
key.encrypt_block(block);
@@ -25,8 +30,13 @@ pub fn cbc_encrypt(key: &EncryptionKey, mut iv: Block16, blocks: &mut [u8]) {
}
}
pub fn cbc_decrypt(key: &DecryptionKey, mut iv: Block16, blocks: &mut [u8]) {
for block in blocks.chunks_mut(16) {
/// Decrypts a byte slice.
///
/// # Panics
///
/// Panics if the byte slice is not a multiple of the block size (16 bytes).
pub fn cbc_decrypt(key: &DecryptionKey, mut iv: Block16, bytes: &mut [u8]) {
for block in bytes.chunks_mut(16) {
let block: &mut Block16 = block.try_into().unwrap();
let tmp = *block;
key.decrypt_block(block);