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Add tests to the KDF

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This commit is contained in:
Rodolphe Bréard 2024-03-09 16:27:23 +01:00
parent cac466f5ed
commit 165b197a3a
1 changed files with 60 additions and 10 deletions
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70
src/kdf.rs
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@ -59,18 +59,18 @@ pub(crate) fn derive_key(
mod tests {
use crate::ikm::InputKeyMaterial;
use crate::KeyContext;
use std::num::NonZeroU64;
const TEST_RAW_IKM: &[u8] = &[
0x0a, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x7b, 0x85, 0x27, 0xef, 0xf2, 0xbd, 0x58,
0x9f, 0x6e, 0xb1, 0x7b, 0x71, 0xc3, 0x1e, 0xf6, 0xfd, 0x7f, 0x90, 0xdb, 0xc6, 0x43, 0xea,
0xe9, 0x9c, 0xa3, 0xb5, 0xee, 0xcc, 0xb6, 0xb6, 0x28, 0x6a, 0xbd, 0xe4, 0xd0, 0x65, 0x00,
0x00, 0x00, 0x00, 0x3d, 0x82, 0x6f, 0x8b, 0x00, 0x00, 0x00, 0x00, 0x00,
];
#[test]
fn derive_key() {
let ikm_raw = [
0x0a, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x7b, 0x85, 0x27, 0xef, 0xf2, 0xbd,
0x58, 0x9f, 0x6e, 0xb1, 0x7b, 0x71, 0xc3, 0x1e, 0xf6, 0xfd, 0x7f, 0x90, 0xdb, 0xc6,
0x43, 0xea, 0xe9, 0x9c, 0xa3, 0xb5, 0xee, 0xcc, 0xb6, 0xb6, 0x28, 0x6a, 0xbd, 0xe4,
0xd0, 0x65, 0x00, 0x00, 0x00, 0x00, 0x3d, 0x82, 0x6f, 0x8b, 0x00, 0x00, 0x00, 0x00,
0x00,
];
let ikm = InputKeyMaterial::from_bytes(&ikm_raw).unwrap();
fn derive_key_no_tp() {
let ikm = InputKeyMaterial::from_bytes(TEST_RAW_IKM).unwrap();
let ctx = KeyContext::from(["some", "context"]);
assert_eq!(
super::derive_key(&ikm, &ctx, None),
@ -81,4 +81,54 @@ mod tests {
]
);
}
#[test]
fn derive_key_tp_0() {
let ikm = InputKeyMaterial::from_bytes(TEST_RAW_IKM).unwrap();
let ctx = KeyContext::from(["some", "context"]);
assert_eq!(
super::derive_key(&ikm, &ctx, Some(0)),
vec![
0xdc, 0x6c, 0x4b, 0xed, 0xef, 0x31, 0x2a, 0x83, 0x40, 0xc0, 0xee, 0xf4, 0xd7, 0xe5,
0xec, 0x2e, 0xcf, 0xda, 0x64, 0x0a, 0xb8, 0xb6, 0x89, 0xe4, 0x3c, 0x6e, 0xc2, 0x53,
0x0e, 0xaa, 0x38, 0x12
]
);
}
#[test]
fn derive_key_tp_42() {
let ikm = InputKeyMaterial::from_bytes(TEST_RAW_IKM).unwrap();
let ctx = KeyContext::from(["some", "context"]);
assert_eq!(
super::derive_key(&ikm, &ctx, Some(42)),
vec![
0xc7, 0xfb, 0x96, 0x6a, 0x15, 0xde, 0x5f, 0xfc, 0x66, 0xa6, 0xac, 0xda, 0x6b, 0x8e,
0xa3, 0x66, 0xd8, 0x70, 0x5b, 0x2f, 0xf9, 0x7f, 0xfb, 0x47, 0xb1, 0xa9, 0x93, 0xfc,
0xf5, 0x0b, 0x6d, 0x3c
]
);
}
#[test]
fn get_time_period() {
let test_vec = &[
// (periodicity, timestamp, reference value)
(1, 0, 0),
(1, 1, 1),
(1, 2, 2),
(1, 35015, 35015),
(16_777_216, 0, 0),
(16_777_216, 16_777_215, 0),
(16_777_216, 16_777_216, 1),
(16_777_216, 1_709_994_382, 101),
];
let mut ctx = KeyContext::from([]);
for (p, ts, ref_val) in test_vec {
let p = NonZeroU64::new(*p).unwrap();
ctx.set_periodicity(p);
let tp = ctx.get_time_period(*ts);
assert_eq!(tp, Some(*ref_val));
}
}
}