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/* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2021, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#include "orconfig.h"
#define ONION_NTOR_V3_PRIVATE
#include "core/or/or.h"
#include "test/test.h"
#include "lib/crypt_ops/crypto_curve25519.h"
#include "lib/crypt_ops/crypto_ed25519.h"
#include "core/crypto/onion_ntor_v3.h"
#define unhex(arry, s) \
{ tt_int_op(sizeof(arry), OP_EQ, \
base16_decode((char*)arry, sizeof(arry), s, strlen(s))); \
}
static void
test_ntor3_testvecs(void *arg)
{
(void)arg;
char *mem_op_hex_tmp = NULL; // temp val to make test_memeq_hex work.
ntor3_server_handshake_state_t *relay_state = NULL;
uint8_t *onion_skin = NULL;
size_t onion_skin_len;
ntor3_handshake_state_t *client_state = NULL;
uint8_t *cm = NULL, *sm = NULL;
size_t cm_len, sm_len;
di_digest256_map_t *private_keys = NULL;
uint8_t *server_handshake = NULL;
size_t server_handshake_len;
// Test vectors from python implementation, confirmed with rust
// implementation.
curve25519_keypair_t relay_keypair_b;
curve25519_keypair_t client_keypair_x;
curve25519_keypair_t relay_keypair_y;
ed25519_public_key_t relay_id;
unhex(relay_keypair_b.seckey.secret_key,
"4051daa5921cfa2a1c27b08451324919538e79e788a81b38cbed097a5dff454a");
unhex(relay_keypair_b.pubkey.public_key,
"f8307a2bc1870b00b828bb74dbb8fd88e632a6375ab3bcd1ae706aaa8b6cdd1d");
unhex(relay_id.pubkey,
"9fad2af287ef942632833d21f946c6260c33fae6172b60006e86e4a6911753a2");
unhex(client_keypair_x.seckey.secret_key,
"b825a3719147bcbe5fb1d0b0fcb9c09e51948048e2e3283d2ab7b45b5ef38b49");
unhex(client_keypair_x.pubkey.public_key,
"252fe9ae91264c91d4ecb8501f79d0387e34ad8ca0f7c995184f7d11d5da4f46");
unhex(relay_keypair_y.seckey.secret_key,
"4865a5b7689dafd978f529291c7171bc159be076b92186405d13220b80e2a053");
unhex(relay_keypair_y.pubkey.public_key,
"4bf4814326fdab45ad5184f5518bd7fae25dc59374062698201a50a22954246d");
uint8_t client_message[11];
uint8_t verification[5];
unhex(client_message, "68656c6c6f20776f726c64");
unhex(verification, "78797a7a79");
// ========= Client handshake 1.
onion_skin_ntor3_create_nokeygen(
&client_keypair_x,
&relay_id,
&relay_keypair_b.pubkey,
verification,
sizeof(verification),
client_message,
sizeof(client_message),
&client_state,
&onion_skin,
&onion_skin_len);
const char expect_client_handshake[] = "9fad2af287ef942632833d21f946c6260c"
"33fae6172b60006e86e4a6911753a2f8307a2bc1870b00b828bb74dbb8fd88e632a6375"
"ab3bcd1ae706aaa8b6cdd1d252fe9ae91264c91d4ecb8501f79d0387e34ad8ca0f7c995"
"184f7d11d5da4f463bebd9151fd3b47c180abc9e044d53565f04d82bbb3bebed3d06cea"
"65db8be9c72b68cd461942088502f67";
tt_int_op(onion_skin_len, OP_EQ, strlen(expect_client_handshake)/2);
test_memeq_hex(onion_skin, expect_client_handshake);
// ========= Relay handshake.
dimap_add_entry(&private_keys,
relay_keypair_b.pubkey.public_key,
&relay_keypair_b);
int r = onion_skin_ntor3_server_handshake_part1(
private_keys,
&client_keypair_x,
&relay_id,
onion_skin,
onion_skin_len,
verification,
sizeof(verification),
&cm,
&cm_len,
&relay_state);
tt_int_op(r, OP_EQ, 0);
tt_int_op(cm_len, OP_EQ, sizeof(client_message));
tt_mem_op(cm, OP_EQ, client_message, cm_len);
uint8_t server_message[10];
unhex(server_message, "486f6c61204d756e646f");
uint8_t server_keys[256];
onion_skin_ntor3_server_handshake_part2_nokeygen(
&relay_keypair_y,
relay_state,
verification,
sizeof(verification),
server_message,
sizeof(server_message),
&server_handshake,
&server_handshake_len,
server_keys,
sizeof(server_keys));
const char expect_server_handshake[] = "4bf4814326fdab45ad5184f5518bd7fae25"
"dc59374062698201a50a22954246d2fc5f8773ca824542bc6cf6f57c7c29bbf4e5476461"
"ab130c5b18ab0a91276651202c3e1e87c0d32054c";
tt_int_op(server_handshake_len, OP_EQ, strlen(expect_server_handshake)/2);
test_memeq_hex(server_handshake, expect_server_handshake);
uint8_t expect_keys[256];
unhex(expect_keys, "9c19b631fd94ed86a817e01f6c80b0743a43f5faebd39cfaa8b00f"
"a8bcc65c3bfeaa403d91acbd68a821bf6ee8504602b094a254392a07737d5662768"
"c7a9fb1b2814bb34780eaee6e867c773e28c212ead563e98a1cd5d5b4576f5ee61c"
"59bde025ff2851bb19b721421694f263818e3531e43a9e4e3e2c661e2ad547d8984"
"caa28ebecd3e4525452299be26b9185a20a90ce1eac20a91f2832d731b54502b097"
"49b5a2a2949292f8cfcbeffb790c7790ed935a9d251e7e336148ea83b063a5618fc"
"ff674a44581585fd22077ca0e52c59a24347a38d1a1ceebddbf238541f226b8f88d"
"0fb9c07a1bcd2ea764bbbb5dacdaf5312a14c0b9e4f06309b0333b4a");
tt_mem_op(server_keys, OP_EQ, expect_keys, 256);
// ===== Client handshake 2
uint8_t client_keys[256];
r = onion_ntor3_client_handshake(
client_state,
server_handshake,
server_handshake_len,
verification,
sizeof(verification),
client_keys,
sizeof(client_keys),
&sm,
&sm_len);
tt_int_op(r, OP_EQ, 0);
tt_int_op(sm_len, OP_EQ, sizeof(server_message));
tt_mem_op(sm, OP_EQ, server_message, sizeof(server_message));
tt_mem_op(client_keys, OP_EQ, server_keys, 256);
done:
tor_free(onion_skin);
tor_free(server_handshake);
tor_free(mem_op_hex_tmp);
ntor3_handshake_state_free(client_state);
ntor3_server_handshake_state_free(relay_state);
tor_free(cm);
tor_free(sm);
dimap_free(private_keys, NULL);
}
struct testcase_t ntor_v3_tests[] = {
{ "testvecs", test_ntor3_testvecs, 0, NULL, NULL, },
END_OF_TESTCASES,
};
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