common-crypto 0.3.0

Bindings to Apple's Common Crypto library
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
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

use common_crypto::cryptor::*;

#[test]
fn rc4_ecb_encrypt() {
    let config = Config::RC4 { key: b"Key" };

    assert_eq!(
        Cryptor::encrypt(&config, b"Plaintext").unwrap(),
        &[0xbb, 0xf3, 0x16, 0xe8, 0xd9, 0x40, 0xaf, 0x0a, 0xd3]
    );
}

#[test]
fn aes256_round_trip() {
    let config = Config::AES256 {
        mode: Mode::CTR,
        iv: Some(b"use random iv :)"),
        key: b"0123456789abcdef0123456789abcdef",
    };

    let encrypted = Cryptor::encrypt(&config, b"Hello").unwrap();
    assert!(!encrypted.is_empty());
    let decrypted = Cryptor::decrypt(&config, encrypted).unwrap();
    assert_eq!(decrypted, b"Hello");
}

#[test]
fn iv_with_ecb_is_error() {
    let config = Config::AES256 {
        mode: Mode::ECB,
        iv: Some(b"use random iv :)"),
        key: b"0123456789abcdef0123456789abcdef",
    };

    assert_eq!(
        Cryptor::encrypt(&config, b"Hello").unwrap_err(),
        CryptorError::InitializationVectorPresent
    );
}

#[test]
fn iv_is_used() {
    let config = Config::AES256 {
        mode: Mode::CTR,
        iv: Some(b"use random iv :)"),
        key: b"0123456789abcdef0123456789abcdef",
    };

    let encrypted = Cryptor::encrypt(&config, b"Hello").unwrap();
    assert!(!encrypted.is_empty());

    let new_config = Config::AES256 {
        mode: Mode::CTR,
        iv: Some(b"very  random  iv"),
        key: b"0123456789abcdef0123456789abcdef",
    };

    assert_ne!(Cryptor::encrypt(&new_config, b"Hello").unwrap(), encrypted);
}