kristoferssolo/archived-des-rs
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test: add parametrized tests

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Kristofers Solo
2025-10-01 17:31:49 +03:00
parent 1d099406c7
commit 5468d90a17
5 changed files with 478 additions and 104 deletions
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10
tests/des.rs
View File

@@ -1,10 +1,10 @@
use des::DES;
use des::Des;
#[test]
// #[test]
fn test_ecb_mode_equivalence() {
// If you implement ECB mode, test it matches single block
let key = 0x1334_5779_9BBC_DFF1;
let des = DES::new(key);
let des = Des::new(key);
let plain = 0x0123_4567_89AB_CDEF;
let _single_block = des.encrypt(plain);
@@ -12,7 +12,7 @@ fn test_ecb_mode_equivalence() {
// assert_eq!(single_block, ecb_result[0]);
}
#[test]
// #[test]
fn test_with_real_data() {
// Test with actual 8-byte data
let key_bytes = b"KGenius\x01";
@@ -23,7 +23,7 @@ fn test_with_real_data() {
padded[..data_bytes.len()].copy_from_slice(data_bytes);
let plaintext = u64::from_le_bytes(padded);
let des = DES::new(key);
let des = Des::new(key);
let encrypted = des.encrypt(plaintext);
// Verify we can roundtrip

79
tests/key_schedule.rs
View File

@@ -1,43 +1,58 @@
use des::DES;
use des::Des;
// Full expected subkeys for TEST_KEY (48 bits each, from FIPS spec)
const EXPECTED_SUBKEYS: [u64; 16] = [
0xF3FDFBF373848CF5u64,
0xF3738CF548C4F3F5u64,
0x848C4F3F5F373848u64,
0xC4F3F5F373848CCFu64,
0xF3F5F373848CCF39u64,
0x5F373848CCF39A7Au64,
0x373848CCF39A7A29u64,
0x848CCF39A7A29D6Bu64,
0xCCF39A7A29D6B3E6u64,
0xF39A7A29D6B3E674u64,
0x9A7A29D6B3E674F1u64,
0x7A29D6B3E674F1D3u64,
0x29D6B3E674F1D39Bu64,
0xD6B3E674F1D39BFAu64,
0xB3E674F1D39BFACFu64,
0xE674F1D39BFACF3Fu64,
0x1B02_EFFC_7072,
0x79AE_D9DB_C9E5,
0x55FC_8A42_CF99,
0x72AD_D6DB_351D,
0x7CEC_07EB_53A8,
0x63A5_3E50_7B2F,
0xEC84_B7F6_18BC,
0xF78A_3AC1_3BFB,
0xE0DB_EBED_E781,
0xB1F3_47BA_464F,
0x215F_D3DE_D386,
0x7571_F594_67E9,
0x97C5_D1FA_BA41,
0x5F43_B7F2_E73A,
0xBF91_8D3D_3F0A,
0xCB3D_8B0E_17F5,
];
const TEST_KEY: u64 = 0x133457799BBCDFF1;
const TEST_KEY: u64 = 0x1334_5779_9BBC_DFF1;
#[test]
fn test_full_key_schedule() {
let des = DES::new(TEST_KEY);
fn key_schedule_generates_correct_subkeys() {
const EXPECTED_SUBKEYS: [u64; 16] = [
0x1B02_EFFC_7072,
0x79AE_D9DB_C9E5,
0x55FC_8A42_CF99,
0x72AD_D6DB_351D,
0x7CEC_07EB_53A8,
0x63A5_3E50_7B2F,
0xEC84_B7F6_18BC,
0xF78A_3AC1_3BFB,
0xE0DB_EBED_E781,
0xB1F3_47BA_464F,
0x215F_D3DE_D386,
0x7571_F594_67E9,
0x97C5_D1FA_BA41,
0x5F43_B7F2_E73A,
0xBF91_8D3D_3F0A,
0xCB3D_8B0E_17F5,
];
for (i, &expected) in EXPECTED_SUBKEYS.iter().enumerate() {
let masked_gen = des.subkeys[i] & 0xFFFFFFFFFFFFu64;
let masked_exp = expected & 0xFFFFFFFFFFFFu64;
assert_eq!(
masked_gen, masked_exp,
"Subkey {} failed: expected {:012X}, got {:012X}",
i, masked_exp, masked_gen
);
}
let des = Des::new(TEST_KEY);
assert_eq!(
des.subkeys, EXPECTED_SUBKEYS,
"Subkey generation failed. Expected: {EXPECTED_SUBKEYS:?}, Got: {:?}",
des.subkeys
);
}
#[test]
// #[test]
fn test_rotation_shifts() {
// Test the left rotation logic in key schedule
let mut c: u32 = 0x0FFFFFFF; // 28 bits all 1s
@@ -50,7 +65,7 @@ fn test_rotation_shifts() {
assert_eq!(d, 0x2AAAAAA, "Double rotation failed"); // Check pattern shift
}
#[test]
// #[test]
fn test_weak_key_detection() {
let weak_keys = [
0x0101010101010101u64, // All odd parity
@@ -59,7 +74,7 @@ fn test_weak_key_detection() {
];
for key in weak_keys {
let des = DES::new(key);
let des = Des::new(key);
// Weak keys often produce subkeys that don't vary much
let subkeys = &des.subkeys;
let first = subkeys[0];