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
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
//! Common functionality shared by tests
/// Test vectors
#[derive(Debug)]
pub struct TestVector<K: 'static> {
pub key: &'static K,
pub nonce: &'static [u8; 16],
pub aad: &'static [u8],
pub plaintext: &'static [u8],
pub ciphertext: &'static [u8],
}
#[macro_export]
macro_rules! tests {
($aead:ty, $vectors:expr) => {
#[test]
fn encrypt() {
for vector in $vectors {
let key = GenericArray::from_slice(vector.key);
let nonce = GenericArray::from_slice(vector.nonce);
let payload = Payload {
msg: vector.plaintext,
aad: vector.aad,
};
let cipher = <$aead>::new(key);
let ciphertext = cipher.encrypt(nonce, payload).unwrap();
assert_eq!(vector.ciphertext, ciphertext);
}
}
#[test]
fn decrypt() {
for vector in $vectors {
let key = GenericArray::from_slice(vector.key);
let nonce = GenericArray::from_slice(vector.nonce);
let ciphertext = Vec::from(vector.ciphertext);
let payload = Payload {
msg: &ciphertext,
aad: vector.aad,
};
let cipher = <$aead>::new(key);
let plaintext = cipher.decrypt(nonce, payload).unwrap();
assert_eq!(vector.plaintext, plaintext.as_slice());
}
}
#[test]
fn decrypt_modified() {
let vector = &$vectors[0];
let key = GenericArray::from_slice(vector.key);
let nonce = GenericArray::from_slice(vector.nonce);
let mut ciphertext = Vec::from(vector.ciphertext);
// Tweak the first byte
ciphertext[0] ^= 0xaa;
let payload = Payload {
msg: &ciphertext,
aad: vector.aad,
};
let cipher = <$aead>::new(key);
assert!(cipher.decrypt(nonce, payload).is_err());
// TODO(tarcieri): test ciphertext is unmodified in in-place API
}
};
}
|
