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tor-llcrypto: make AES key objects ZeroizeOnDrop when using openssl 

Part of #254.
This commit is contained in:
Nick Mathewson 2022-08-01 12:38:34 -04:00
parent dd0a83925c
commit cba0f40aa4
1 changed files with 3 additions and 0 deletions
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3
crates/tor-llcrypto/src/cipher.rs
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@ -28,11 +28,13 @@ pub mod aes {
use cipher::{InnerIvInit, IvSizeUser, StreamCipher, StreamCipherError};
use digest::crypto_common::{InnerUser, KeyInit, KeySizeUser};
use openssl::symm::{Cipher, Crypter, Mode};
use zeroize::{Zeroize, ZeroizeOnDrop};
/// AES 128 in counter mode as used by Tor.
pub struct Aes128Ctr(Crypter);
/// AES 128 key
#[derive(Zeroize, ZeroizeOnDrop)]
pub struct Aes128Key([u8; 16]);
impl KeySizeUser for Aes128Key {
@ -78,6 +80,7 @@ pub mod aes {
pub struct Aes256Ctr(Crypter);
/// AES 256 key
#[derive(Zeroize, ZeroizeOnDrop)]
pub struct Aes256Key([u8; 32]);
impl KeySizeUser for Aes256Key {