evgeny
38c9f229bc
- u_async.c: process immediate_queue BEFORE epoll_wait in uasync_poll - stcp_link.c: defensive NULL etcp_conn/etcp_link in stcp_link_close - utun_instance.c: move stcp_server_list_destroy_all to Phase J (before ETCP), add deferred drain in both Phase J and L - stcp.h/c: STCP_HS_ENC_CLIENT 6→38, STCP_HS_ENC_SERVER 7→39, exchange ed25519_pubkey in both handshake directions - etcp_connections.c: copy peer_ed25519 from STCP to ETCP_CONN in etcp_link_enter_ready_tcp; guard link->etcp in tcp_link_close_cb - chat_sync.c: fix lk->conn NULL dereference for TCP links - test_stcp.c: update stcp_server_create/stcp_client_connect callsites - tools/chat_tcp_test: change transport udp→tcp
142 lines
6.1 KiB
C
142 lines
6.1 KiB
C
// test_stream_cipher.c — tests for streaming cipher (AES-128-CTR)
|
||
#include "secure_channel.h"
|
||
#include "../lib/debug_config.h"
|
||
#include <stdio.h>
|
||
#include <string.h>
|
||
#include <stdlib.h>
|
||
|
||
static int test_failed = 0;
|
||
|
||
#define CHECK(expr, msg) do { \
|
||
if (!(expr)) { \
|
||
DEBUG_ERROR(DEBUG_CATEGORY_CRYPTO, "FAIL: %s", msg); \
|
||
test_failed = 1; \
|
||
} else { \
|
||
DEBUG_INFO(DEBUG_CATEGORY_CRYPTO, "PASS: %s", msg); \
|
||
} \
|
||
} while(0)
|
||
|
||
int main(void) {
|
||
debug_config_init();
|
||
debug_set_level(DEBUG_LEVEL_INFO);
|
||
debug_set_categories(DEBUG_CATEGORY_CRYPTO);
|
||
|
||
DEBUG_INFO(DEBUG_CATEGORY_CRYPTO, "=== Stream Cipher Test ===");
|
||
|
||
struct SC_MYKEYS keys_a, keys_b;
|
||
CHECK(sc_generate_keypair(&keys_a) == SC_OK, "generate keypair A");
|
||
CHECK(sc_generate_keypair(&keys_b) == SC_OK, "generate keypair B");
|
||
|
||
sc_context_t ctx_a, ctx_b;
|
||
CHECK(sc_init_ctx(&ctx_a, &keys_a) == SC_OK, "init ctx A");
|
||
CHECK(sc_init_ctx(&ctx_b, &keys_b) == SC_OK, "init ctx B");
|
||
|
||
CHECK(sc_set_peer_public_key(&ctx_a, keys_b.public_key, SC_PEER_PUBKEY_BIN) == SC_OK, "set peer key A<-B");
|
||
CHECK(sc_set_peer_public_key(&ctx_b, keys_a.public_key, SC_PEER_PUBKEY_BIN) == SC_OK, "set peer key B<-A");
|
||
|
||
struct sc_stream_state send_a, recv_a, send_b, recv_b;
|
||
CHECK(sc_stream_init(&ctx_a, &send_a, 0) == SC_OK, "init send_A (id=0)");
|
||
CHECK(sc_stream_init(&ctx_a, &recv_a, 1) == SC_OK, "init recv_A (id=1)");
|
||
CHECK(sc_stream_init(&ctx_b, &recv_b, 0) == SC_OK, "init recv_B (id=0)");
|
||
CHECK(sc_stream_init(&ctx_b, &send_b, 1) == SC_OK, "init send_B (id=1)");
|
||
|
||
uint8_t original[2048], data[2048];
|
||
for (int i = 0; i < (int)sizeof(original); i++) original[i] = (uint8_t)(i * 3 + 17);
|
||
|
||
// Test 1: A->B, single chunk, 1024 bytes
|
||
memcpy(data, original, 1024);
|
||
CHECK(sc_stream_xor(&send_a, data, 1024) == SC_OK, "encrypt 1024B A->B");
|
||
CHECK(sc_stream_xor(&recv_b, data, 1024) == SC_OK, "decrypt 1024B A->B");
|
||
CHECK(memcmp(data, original, 1024) == 0, "round-trip A->B matches");
|
||
|
||
// Test 2: B->A, single chunk
|
||
memcpy(data, original, 1024);
|
||
CHECK(sc_stream_xor(&send_b, data, 1024) == SC_OK, "encrypt 1024B B->A");
|
||
CHECK(sc_stream_xor(&recv_a, data, 1024) == SC_OK, "decrypt 1024B B->A");
|
||
CHECK(memcmp(data, original, 1024) == 0, "round-trip B->A matches");
|
||
|
||
// Test 3: incremental feeding — encrypt in 4 chunks, decrypt in 2
|
||
memcpy(data, original, 1024);
|
||
CHECK(sc_stream_xor(&send_a, data, 7) == SC_OK, "inc_A enc 7B");
|
||
CHECK(sc_stream_xor(&send_a, data + 7, 33) == SC_OK, "inc_A enc 33B");
|
||
CHECK(sc_stream_xor(&send_a, data + 40, 1) == SC_OK, "inc_A enc 1B");
|
||
CHECK(sc_stream_xor(&send_a, data + 41, 1024 - 41) == SC_OK, "inc_A enc 983B");
|
||
CHECK(sc_stream_xor(&recv_b, data, 513) == SC_OK, "inc_B dec 513B");
|
||
CHECK(sc_stream_xor(&recv_b, data + 513, 1024 - 513) == SC_OK, "inc_B dec 511B");
|
||
CHECK(memcmp(data, original, 1024) == 0, "inc round-trip matches");
|
||
|
||
// Test 4: all sizes 1..255 — catches alignment/keystream issues
|
||
for (size_t sz = 1; sz <= 255; sz++) {
|
||
uint8_t buf[256], cpy[256];
|
||
for (size_t i = 0; i < sz; i++) buf[i] = (uint8_t)(sz ^ i);
|
||
memcpy(cpy, buf, sz);
|
||
CHECK(sc_stream_xor(&send_a, buf, sz) == SC_OK, "various-size enc");
|
||
CHECK(sc_stream_xor(&recv_b, buf, sz) == SC_OK, "various-size dec");
|
||
CHECK(memcmp(buf, cpy, sz) == 0, "various-size match");
|
||
}
|
||
|
||
// Test 5: 2048 bytes (= 128 AES blocks, whole number)
|
||
memcpy(data, original, 2048);
|
||
CHECK(sc_stream_xor(&send_a, data, 2048) == SC_OK, "enc 2048B");
|
||
CHECK(sc_stream_xor(&recv_b, data, 2048) == SC_OK, "dec 2048B");
|
||
CHECK(memcmp(data, original, 2048) == 0, "round-trip 2048 matches");
|
||
|
||
// Test 6: A and B streams must produce DIFFERENT keystreams
|
||
{
|
||
uint8_t test_data[16];
|
||
memset(test_data, 0xAA, 16);
|
||
uint8_t a_out[16], b_out[16];
|
||
memcpy(a_out, test_data, 16);
|
||
memcpy(b_out, test_data, 16);
|
||
CHECK(sc_stream_xor(&send_a, a_out, 16) == SC_OK, "xor on send_A");
|
||
CHECK(sc_stream_xor(&send_b, b_out, 16) == SC_OK, "xor on send_B");
|
||
CHECK(memcmp(a_out, b_out, 16) != 0, "stream_id=0 != stream_id=1 keystream");
|
||
// Decrypt back
|
||
CHECK(sc_stream_xor(&recv_b, a_out, 16) == SC_OK, "recv_B decrypt send_A data");
|
||
CHECK(sc_stream_xor(&recv_a, b_out, 16) == SC_OK, "recv_A decrypt send_B data");
|
||
CHECK(memcmp(a_out, test_data, 16) == 0, "recv_B restores original");
|
||
CHECK(memcmp(b_out, test_data, 16) == 0, "recv_A restores original");
|
||
}
|
||
|
||
// Test 7: encrypt 1 byte — extreme alignment edge
|
||
for (int j = 0; j < 50; j++) {
|
||
uint8_t one_byte = (uint8_t)j;
|
||
CHECK(sc_stream_xor(&send_a, &one_byte, 1) == SC_OK, "enc 1B");
|
||
CHECK(sc_stream_xor(&recv_b, &one_byte, 1) == SC_OK, "dec 1B");
|
||
CHECK(one_byte == (uint8_t)j, "1-byte round-trip");
|
||
}
|
||
|
||
// Test 8: error handling
|
||
CHECK(sc_stream_xor(&send_a, NULL, 0) == SC_OK, "xor len=0 OK");
|
||
CHECK(sc_stream_xor(&send_a, data, 0) == SC_OK, "xor data_len=0 OK");
|
||
CHECK(sc_stream_init(&ctx_a, NULL, 0) == SC_ERR_INVALID_ARG, "init NULL state");
|
||
CHECK(sc_stream_init(NULL, &send_a, 0) == SC_ERR_INVALID_ARG, "init NULL ctx");
|
||
|
||
struct sc_stream_state uninit;
|
||
memset(&uninit, 0, sizeof(uninit));
|
||
CHECK(sc_stream_xor(&uninit, data, 1) == SC_ERR_NOT_INITIALIZED, "xor uninitialized");
|
||
|
||
// У ctx без session_ready
|
||
sc_context_t no_session_ctx;
|
||
struct SC_MYKEYS dummy_keys;
|
||
memset(&dummy_keys, 0, sizeof(dummy_keys));
|
||
sc_init_ctx(&no_session_ctx, &dummy_keys);
|
||
struct sc_stream_state bad_stream;
|
||
CHECK(sc_stream_init(&no_session_ctx, &bad_stream, 0) == SC_ERR_NOT_INITIALIZED, "init without session");
|
||
|
||
// Cleanup
|
||
sc_stream_cleanup(&send_a);
|
||
sc_stream_cleanup(&recv_a);
|
||
sc_stream_cleanup(&send_b);
|
||
sc_stream_cleanup(&recv_b);
|
||
sc_stream_cleanup(NULL);
|
||
sc_stream_cleanup(&uninit);
|
||
|
||
if (test_failed) {
|
||
DEBUG_ERROR(DEBUG_CATEGORY_CRYPTO, "=== Stream Cipher Test: FAILED ===");
|
||
return 1;
|
||
}
|
||
DEBUG_INFO(DEBUG_CATEGORY_CRYPTO, "=== Stream Cipher Test: PASSED ===");
|
||
return 0;
|
||
}
|