int
main(void)
{
signal(SIGABRT, sigabrt_handler_1);
assert(crypto_kx_client_session_keys(NULL, NULL, NULL, NULL, NULL) == -1);
return 1;
}
static void
tv_kx(void)
{
unsigned char *seed;
unsigned char *client_pk, *client_sk;
unsigned char *client_rx, *client_tx;
unsigned char *server_pk, *server_sk;
unsigned char *server_rx, *server_tx;
char hex[65];
int i;
seed = (unsigned char *) sodium_malloc(crypto_kx_SEEDBYTES);
for (i = 0; i < crypto_kx_SEEDBYTES; i++) {
seed[i] = (unsigned char) i;
}
client_pk = (unsigned char *) sodium_malloc(crypto_kx_PUBLICKEYBYTES);
client_sk = (unsigned char *) sodium_malloc(crypto_kx_SECRETKEYBYTES);
crypto_kx_seed_keypair(client_pk, client_sk, seed);
sodium_bin2hex(hex, sizeof hex, client_pk, crypto_kx_PUBLICKEYBYTES);
printf("client_pk: [%s]\n", hex);
sodium_bin2hex(hex, sizeof hex, client_sk, crypto_kx_SECRETKEYBYTES);
printf("client_sk: [%s]\n", hex);
server_pk = (unsigned char *) sodium_malloc(crypto_kx_PUBLICKEYBYTES);
server_sk = (unsigned char *) sodium_malloc(crypto_kx_SECRETKEYBYTES);
crypto_kx_keypair(server_pk, server_sk);
client_rx = (unsigned char *) sodium_malloc(crypto_kx_SESSIONKEYBYTES);
client_tx = (unsigned char *) sodium_malloc(crypto_kx_SESSIONKEYBYTES);
assert(crypto_kx_client_session_keys(client_rx, client_tx,
client_pk, client_sk,
small_order_p) == -1);
if (crypto_kx_client_session_keys(client_rx, client_tx,
client_pk, client_sk, server_pk) != 0) {
printf("crypto_kx_client_session_keys() failed\n");
}
server_rx = (unsigned char *) sodium_malloc(crypto_kx_SESSIONKEYBYTES);
server_tx = (unsigned char *) sodium_malloc(crypto_kx_SESSIONKEYBYTES);
assert(crypto_kx_server_session_keys(server_rx, server_tx,
server_pk, server_sk,
small_order_p) == -1);
if (crypto_kx_server_session_keys(server_rx, server_tx,
server_pk, server_sk, client_pk) != 0) {
printf("crypto_kx_server_session_keys() failed\n");
}
if (memcmp(server_rx, client_tx, crypto_kx_SESSIONKEYBYTES) != 0 ||
memcmp(server_tx, client_rx, crypto_kx_SESSIONKEYBYTES) != 0) {
printf("client session keys != server session keys\n");
}
sodium_increment(client_pk, crypto_kx_PUBLICKEYBYTES);
if (crypto_kx_server_session_keys(server_rx, server_tx,
server_pk, server_sk, client_pk) != 0) {
printf("crypto_kx_server_session_keys() failed\n");
}
if (memcmp(server_rx, client_tx, crypto_kx_SESSIONKEYBYTES) == 0 &&
memcmp(server_tx, client_rx, crypto_kx_SESSIONKEYBYTES) == 0) {
printf("peer's public key is ignored\n");
}
crypto_kx_keypair(client_pk, client_sk);
if (crypto_kx_server_session_keys(server_rx, server_tx,
server_pk, server_sk, client_pk) != 0) {
printf("crypto_kx_server_session_keys() failed\n");
}
if (memcmp(server_rx, client_tx, crypto_kx_SESSIONKEYBYTES) == 0 ||
memcmp(server_tx, client_rx, crypto_kx_SESSIONKEYBYTES) == 0) {
printf("session keys are constant\n");
}
crypto_kx_seed_keypair(client_pk, client_sk, seed);
sodium_increment(seed, crypto_kx_SEEDBYTES);
crypto_kx_seed_keypair(server_pk, server_sk, seed);
if (crypto_kx_server_session_keys(server_rx, server_tx,
server_pk, server_sk, client_pk) != 0) {
printf("crypto_kx_server_session_keys() failed\n");
}
sodium_bin2hex(hex, sizeof hex, server_rx, crypto_kx_SESSIONKEYBYTES);
printf("server_rx: [%s]\n", hex);
sodium_bin2hex(hex, sizeof hex, server_tx, crypto_kx_SESSIONKEYBYTES);
printf("server_tx: [%s]\n", hex);
if (crypto_kx_client_session_keys(client_rx, client_tx,
client_pk, client_sk, server_pk) != 0) {
printf("crypto_kx_client_session_keys() failed\n");
}
sodium_bin2hex(hex, sizeof hex, client_rx, crypto_kx_SESSIONKEYBYTES);
printf("client_rx: [%s]\n", hex);
sodium_bin2hex(hex, sizeof hex, client_tx, crypto_kx_SESSIONKEYBYTES);
printf("client_tx: [%s]\n", hex);
randombytes_buf(client_rx, crypto_kx_SESSIONKEYBYTES);
randombytes_buf(client_tx, crypto_kx_SESSIONKEYBYTES);
randombytes_buf(server_rx, crypto_kx_SESSIONKEYBYTES);
randombytes_buf(server_tx, crypto_kx_SESSIONKEYBYTES);
if (crypto_kx_client_session_keys(client_rx, NULL,
client_pk, client_sk, server_pk) != 0 ||
crypto_kx_client_session_keys(NULL, client_tx,
client_pk, client_sk, server_pk) != 0 ||
crypto_kx_server_session_keys(server_rx, NULL,
server_pk, server_sk, client_pk) != 0 ||
crypto_kx_server_session_keys(NULL, server_tx,
server_pk, server_sk, client_pk) != 0) {
printf("failure when one of the pointers happens to be NULL");
}
assert(memcmp(client_rx, client_tx, crypto_kx_SESSIONKEYBYTES) == 0);
assert(memcmp(client_tx, server_rx, crypto_kx_SESSIONKEYBYTES) == 0);
assert(memcmp(server_rx, server_tx, crypto_kx_SESSIONKEYBYTES) == 0);
sodium_free(client_rx);
sodium_free(client_tx);
sodium_free(server_rx);
sodium_free(server_tx);
sodium_free(server_sk);
sodium_free(server_pk);
sodium_free(client_sk);
sodium_free(client_pk);
sodium_free(seed);
assert(strcmp(crypto_kx_primitive(), crypto_kx_PRIMITIVE) == 0);
assert(crypto_kx_publickeybytes() == crypto_kx_PUBLICKEYBYTES);
assert(crypto_kx_secretkeybytes() == crypto_kx_SECRETKEYBYTES);
assert(crypto_kx_seedbytes() == crypto_kx_SEEDBYTES);
assert(crypto_kx_sessionkeybytes() == crypto_kx_SESSIONKEYBYTES);
printf("tv_kx: ok\n");
}
