wlan_rsn/key/
mod.rs

1// Copyright 2018 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5pub mod exchange;
6pub mod gtk;
7pub mod igtk;
8pub mod pmk;
9pub mod ptk;
10
11pub use pmk::Pmk;
12
13use mundane::bytes;
14
15pub trait Tk {
16    fn tk(&self) -> &[u8];
17
18    fn eq_tk(&self, other: &impl Tk) -> bool {
19        // Constant-time equivalence is used to prevent timing attacks.
20        bytes::constant_time_eq(self.tk(), other.tk())
21    }
22}
23
24#[cfg(test)]
25mod tests {
26    use super::*;
27    use hex::FromHex;
28
29    #[derive(Clone)]
30    struct DummyTk {
31        tk_field: Vec<u8>,
32    }
33    impl Tk for DummyTk {
34        fn tk(&self) -> &[u8] {
35            &self.tk_field[..]
36        }
37    }
38
39    #[test]
40    fn test_eq_tk() {
41        let dummy_tk_a =
42            DummyTk { tk_field: Vec::from_hex("aaaaaaaa").expect("could not make Vec") };
43        let dummy_tk_equivalent_a =
44            DummyTk { tk_field: Vec::from_hex("aaaaaaaa").expect("could not make Vec") };
45        let dummy_tk_b =
46            DummyTk { tk_field: Vec::from_hex("bbbbbbbb").expect("could not make Vec") };
47
48        assert!(dummy_tk_a.eq_tk(&dummy_tk_equivalent_a));
49        assert!(!dummy_tk_a.eq_tk(&dummy_tk_b));
50    }
51}
wlan_rsn/key/mod.rs

wlan_rsn/key/
mod.rs
