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116 lines
4.3 KiB
C
116 lines
4.3 KiB
C
/* Copyright (c) 2017-2018, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file test_hs_ntor.c
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* \brief Test hidden service ntor functionality.
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*/
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#include "test/test.h"
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#include "test/test_helpers.h"
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#include "test/log_test_helpers.h"
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#include "lib/crypt_ops/crypto_curve25519.h"
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#include "lib/crypt_ops/crypto_ed25519.h"
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#include "core/crypto/hs_ntor.h"
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/* Test the HS ntor handshake. Simulate the sending of an encrypted INTRODUCE1
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* cell, and verify the proper derivation of decryption keys on the other end.
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* Then simulate the sending of an authenticated RENDEZVOUS1 cell and verify
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* the proper verification on the other end. */
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static void
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test_hs_ntor(void *arg)
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{
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int retval;
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uint8_t subcredential[DIGEST256_LEN];
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ed25519_keypair_t service_intro_auth_keypair;
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curve25519_keypair_t service_intro_enc_keypair;
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curve25519_keypair_t service_ephemeral_rend_keypair;
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curve25519_keypair_t client_ephemeral_enc_keypair;
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hs_ntor_intro_cell_keys_t client_hs_ntor_intro_cell_keys;
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hs_ntor_intro_cell_keys_t service_hs_ntor_intro_cell_keys;
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hs_ntor_rend_cell_keys_t service_hs_ntor_rend_cell_keys;
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hs_ntor_rend_cell_keys_t client_hs_ntor_rend_cell_keys;
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(void) arg;
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/* Generate fake data for this unittest */
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{
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/* Generate fake subcredential */
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memset(subcredential, 'Z', DIGEST256_LEN);
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/* service */
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curve25519_keypair_generate(&service_intro_enc_keypair, 0);
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ed25519_keypair_generate(&service_intro_auth_keypair, 0);
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curve25519_keypair_generate(&service_ephemeral_rend_keypair, 0);
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/* client */
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curve25519_keypair_generate(&client_ephemeral_enc_keypair, 0);
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}
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/* Client: Simulate the sending of an encrypted INTRODUCE1 cell */
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retval =
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hs_ntor_client_get_introduce1_keys(&service_intro_auth_keypair.pubkey,
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&service_intro_enc_keypair.pubkey,
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&client_ephemeral_enc_keypair,
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subcredential,
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&client_hs_ntor_intro_cell_keys);
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tt_int_op(retval, OP_EQ, 0);
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/* Service: Simulate the decryption of the received INTRODUCE1 */
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retval =
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hs_ntor_service_get_introduce1_keys(&service_intro_auth_keypair.pubkey,
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&service_intro_enc_keypair,
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&client_ephemeral_enc_keypair.pubkey,
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subcredential,
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&service_hs_ntor_intro_cell_keys);
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tt_int_op(retval, OP_EQ, 0);
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/* Test that the INTRODUCE1 encryption/mac keys match! */
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tt_mem_op(client_hs_ntor_intro_cell_keys.enc_key, OP_EQ,
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service_hs_ntor_intro_cell_keys.enc_key,
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CIPHER256_KEY_LEN);
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tt_mem_op(client_hs_ntor_intro_cell_keys.mac_key, OP_EQ,
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service_hs_ntor_intro_cell_keys.mac_key,
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DIGEST256_LEN);
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/* Service: Simulate creation of RENDEZVOUS1 key material. */
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retval =
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hs_ntor_service_get_rendezvous1_keys(&service_intro_auth_keypair.pubkey,
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&service_intro_enc_keypair,
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&service_ephemeral_rend_keypair,
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&client_ephemeral_enc_keypair.pubkey,
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&service_hs_ntor_rend_cell_keys);
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tt_int_op(retval, OP_EQ, 0);
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/* Client: Simulate the verification of a received RENDEZVOUS1 cell */
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retval =
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hs_ntor_client_get_rendezvous1_keys(&service_intro_auth_keypair.pubkey,
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&client_ephemeral_enc_keypair,
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&service_intro_enc_keypair.pubkey,
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&service_ephemeral_rend_keypair.pubkey,
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&client_hs_ntor_rend_cell_keys);
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tt_int_op(retval, OP_EQ, 0);
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/* Test that the RENDEZVOUS1 key material match! */
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tt_mem_op(client_hs_ntor_rend_cell_keys.rend_cell_auth_mac, OP_EQ,
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service_hs_ntor_rend_cell_keys.rend_cell_auth_mac,
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DIGEST256_LEN);
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tt_mem_op(client_hs_ntor_rend_cell_keys.ntor_key_seed, OP_EQ,
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service_hs_ntor_rend_cell_keys.ntor_key_seed,
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DIGEST256_LEN);
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done:
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;
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}
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struct testcase_t hs_ntor_tests[] = {
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{ "hs_ntor", test_hs_ntor, TT_FORK,
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NULL, NULL },
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END_OF_TESTCASES
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};
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