void
routerkeys_free_all(void)
{
ed25519_keypair_free(master_identity_key);
ed25519_keypair_free(master_signing_key);
ed25519_keypair_free(current_auth_key);
tor_cert_free(signing_key_cert);
tor_cert_free(link_cert_cert);
tor_cert_free(auth_key_cert);
master_identity_key = master_signing_key = NULL;
current_auth_key = NULL;
signing_key_cert = link_cert_cert = auth_key_cert = NULL;
}
static void
test_routerkeys_ed_key_create(void *arg)
{
(void)arg;
tor_cert_t *cert = NULL;
ed25519_keypair_t *kp1 = NULL, *kp2 = NULL;
time_t now = time(NULL);
/* This is a simple alias for 'make a new keypair' */
kp1 = ed_key_new(NULL, 0, 0, 0, 0, &cert);
tt_assert(kp1);
/* Create a new certificate signed by kp1. */
kp2 = ed_key_new(kp1, INIT_ED_KEY_NEEDCERT, now, 3600, 4, &cert);
tt_assert(kp2);
tt_assert(cert);
tt_mem_op(&cert->signed_key, OP_EQ, &kp2->pubkey,
sizeof(ed25519_public_key_t));
tt_assert(! cert->signing_key_included);
tt_int_op(cert->valid_until, OP_GE, now);
tt_int_op(cert->valid_until, OP_LE, now+7200);
/* Create a new key-including certificate signed by kp1 */
ed25519_keypair_free(kp2);
tor_cert_free(cert);
cert = NULL; kp2 = NULL;
kp2 = ed_key_new(kp1, (INIT_ED_KEY_NEEDCERT|
INIT_ED_KEY_INCLUDE_SIGNING_KEY_IN_CERT),
now, 3600, 4, &cert);
tt_assert(kp2);
tt_assert(cert);
tt_assert(cert->signing_key_included);
tt_mem_op(&cert->signed_key, OP_EQ, &kp2->pubkey,
sizeof(ed25519_public_key_t));
tt_mem_op(&cert->signing_key, OP_EQ, &kp1->pubkey,
sizeof(ed25519_public_key_t));
done:
ed25519_keypair_free(kp1);
ed25519_keypair_free(kp2);
tor_cert_free(cert);
}
/**
* Running as a server: load, reload, or refresh our ed25519 keys and
* certificates, creating and saving new ones as needed.
*/
int
load_ed_keys(const or_options_t *options, time_t now)
{
ed25519_keypair_t *id = NULL;
ed25519_keypair_t *sign = NULL;
ed25519_keypair_t *auth = NULL;
const ed25519_keypair_t *sign_signing_key_with_id = NULL;
const ed25519_keypair_t *use_signing = NULL;
const tor_cert_t *check_signing_cert = NULL;
tor_cert_t *sign_cert = NULL;
tor_cert_t *auth_cert = NULL;
#define FAIL(msg) do { \
log_warn(LD_OR, (msg)); \
goto err; \
} while (0)
#define SET_KEY(key, newval) do { \
if ((key) != (newval)) \
ed25519_keypair_free(key); \
key = (newval); \
} while (0)
#define SET_CERT(cert, newval) do { \
if ((cert) != (newval)) \
tor_cert_free(cert); \
cert = (newval); \
} while (0)
#define EXPIRES_SOON(cert, interval) \
(!(cert) || (cert)->valid_until < now + (interval))
/* XXXX support encrypted identity keys fully */
/* First try to get the signing key to see how it is. */
{
char *fname =
options_get_datadir_fname2(options, "keys", "ed25519_signing");
sign = ed_key_init_from_file(
fname,
INIT_ED_KEY_NEEDCERT|
INIT_ED_KEY_INCLUDE_SIGNING_KEY_IN_CERT,
LOG_INFO,
NULL, 0, 0, CERT_TYPE_ID_SIGNING, &sign_cert);
tor_free(fname);
check_signing_cert = sign_cert;
use_signing = sign;
}
if (!use_signing && master_signing_key) {
check_signing_cert = signing_key_cert;
use_signing = master_signing_key;
}
const int offline_master =
options->OfflineMasterKey && options->command != CMD_KEYGEN;
const int need_new_signing_key =
NULL == use_signing ||
EXPIRES_SOON(check_signing_cert, 0) ||
(options->command == CMD_KEYGEN && ! options->change_key_passphrase);
const int want_new_signing_key =
need_new_signing_key ||
EXPIRES_SOON(check_signing_cert, options->TestingSigningKeySlop);
/* We can only create a master key if we haven't been told that the
* master key will always be offline. Also, if we have a signing key,
* then we shouldn't make a new master ID key. */
const int can_make_master_id_key = !offline_master &&
NULL == use_signing;
if (need_new_signing_key) {
log_notice(LD_OR, "It looks like I need to generate and sign a new "
"medium-term signing key, because %s. To do that, I need to "
"load%s the permanent master identity key.",
(NULL == use_signing) ? "I don't have one" :
EXPIRES_SOON(check_signing_cert, 0) ? "the one I have is expired" :
"you asked me to make one with --keygen",
can_make_master_id_key ? " (or create)" : "");
} else if (want_new_signing_key && !offline_master) {
log_notice(LD_OR, "It looks like I should try to generate and sign a "
"new medium-term signing key, because the one I have is "
"going to expire soon. To do that, I'm going to have to try to "
"load the permanent master identity key.");
} else if (want_new_signing_key) {
log_notice(LD_OR, "It looks like I should try to generate and sign a "
"new medium-term signing key, because the one I have is "
"going to expire soon. But OfflineMasterKey is set, so I "
"won't try to load a permanent master identity key is set. "
"You will need to use 'tor --keygen' make a new signing key "
"and certificate.");
}
{
uint32_t flags =
(INIT_ED_KEY_SPLIT|
INIT_ED_KEY_EXTRA_STRONG|INIT_ED_KEY_NO_REPAIR);
if (can_make_master_id_key)
flags |= INIT_ED_KEY_CREATE;
if (! need_new_signing_key)
flags |= INIT_ED_KEY_MISSING_SECRET_OK;
if (! want_new_signing_key || offline_master)
flags |= INIT_ED_KEY_OMIT_SECRET;
if (offline_master)
flags |= INIT_ED_KEY_OFFLINE_SECRET;
if (options->command == CMD_KEYGEN)
flags |= INIT_ED_KEY_TRY_ENCRYPTED;
/* Check the key directory */
if (check_private_dir(options->DataDirectory, CPD_CREATE, options->User)) {
log_err(LD_OR, "Can't create/check datadirectory %s",
options->DataDirectory);
goto err;
}
char *fname = get_datadir_fname("keys");
if (check_private_dir(fname, CPD_CREATE, options->User) < 0) {
log_err(LD_OR, "Problem creating/checking key directory %s", fname);
tor_free(fname);
goto err;
}
tor_free(fname);
if (options->master_key_fname) {
fname = tor_strdup(options->master_key_fname);
flags |= INIT_ED_KEY_EXPLICIT_FNAME;
} else {
fname = options_get_datadir_fname2(options, "keys", "ed25519_master_id");
}
id = ed_key_init_from_file(
fname,
flags,
LOG_WARN, NULL, 0, 0, 0, NULL);
tor_free(fname);
if (!id) {
if (need_new_signing_key) {
if (offline_master)
FAIL("Can't load master identity key; OfflineMasterKey is set.");
else
FAIL("Missing identity key");
} else {
log_warn(LD_OR, "Master public key was absent; inferring from "
"public key in signing certificate and saving to disk.");
tor_assert(check_signing_cert);
id = tor_malloc_zero(sizeof(*id));
memcpy(&id->pubkey, &check_signing_cert->signing_key,
sizeof(ed25519_public_key_t));
fname = options_get_datadir_fname2(options, "keys",
"ed25519_master_id_public_key");
if (ed25519_pubkey_write_to_file(&id->pubkey, fname, "type0") < 0) {
log_warn(LD_OR, "Error while attempting to write master public key "
"to disk");
tor_free(fname);
goto err;
}
tor_free(fname);
}
}
if (tor_mem_is_zero((char*)id->seckey.seckey, sizeof(id->seckey)))
sign_signing_key_with_id = NULL;
else
sign_signing_key_with_id = id;
}
if (master_identity_key &&
!ed25519_pubkey_eq(&id->pubkey, &master_identity_key->pubkey)) {
FAIL("Identity key on disk does not match key we loaded earlier!");
}
if (need_new_signing_key && NULL == sign_signing_key_with_id)
FAIL("Can't load master key make a new signing key.");
if (sign_cert) {
if (! sign_cert->signing_key_included)
FAIL("Loaded a signing cert with no key included!");
if (! ed25519_pubkey_eq(&sign_cert->signing_key, &id->pubkey))
FAIL("The signing cert we have was not signed with the master key "
"we loaded!");
if (tor_cert_checksig(sign_cert, &id->pubkey, 0) < 0)
FAIL("The signing cert we loaded was not signed correctly!");
}
if (want_new_signing_key && sign_signing_key_with_id) {
uint32_t flags = (INIT_ED_KEY_CREATE|
INIT_ED_KEY_REPLACE|
INIT_ED_KEY_EXTRA_STRONG|
INIT_ED_KEY_NEEDCERT|
INIT_ED_KEY_INCLUDE_SIGNING_KEY_IN_CERT);
char *fname =
options_get_datadir_fname2(options, "keys", "ed25519_signing");
ed25519_keypair_free(sign);
tor_cert_free(sign_cert);
sign = ed_key_init_from_file(fname,
flags, LOG_WARN,
sign_signing_key_with_id, now,
options->SigningKeyLifetime,
CERT_TYPE_ID_SIGNING, &sign_cert);
tor_free(fname);
if (!sign)
FAIL("Missing signing key");
use_signing = sign;
tor_assert(sign_cert->signing_key_included);
tor_assert(ed25519_pubkey_eq(&sign_cert->signing_key, &id->pubkey));
tor_assert(ed25519_pubkey_eq(&sign_cert->signed_key, &sign->pubkey));
} else if (want_new_signing_key) {
static ratelim_t missing_master = RATELIM_INIT(3600);
log_fn_ratelim(&missing_master, LOG_WARN, LD_OR,
"Signing key will expire soon, but I can't load the "
"master key to sign a new one!");
}
tor_assert(use_signing);
/* At this point we no longer need our secret identity key. So wipe
* it, if we loaded it in the first place. */
memwipe(id->seckey.seckey, 0, sizeof(id->seckey));
if (options->command == CMD_KEYGEN)
goto end;
if (!rsa_ed_crosscert && server_mode(options)) {
uint8_t *crosscert;
ssize_t crosscert_len = tor_make_rsa_ed25519_crosscert(&id->pubkey,
get_server_identity_key(),
now+10*365*86400,/*XXXX*/
&crosscert);
rsa_ed_crosscert_len = crosscert_len;
rsa_ed_crosscert = crosscert;
}
if (!current_auth_key ||
EXPIRES_SOON(auth_key_cert, options->TestingAuthKeySlop)) {
auth = ed_key_new(use_signing, INIT_ED_KEY_NEEDCERT,
now,
options->TestingAuthKeyLifetime,
CERT_TYPE_SIGNING_AUTH, &auth_cert);
if (!auth)
FAIL("Can't create auth key");
}
/* We've generated or loaded everything. Put them in memory. */
end:
if (! master_identity_key) {
SET_KEY(master_identity_key, id);
} else {
tor_free(id);
}
if (sign) {
SET_KEY(master_signing_key, sign);
SET_CERT(signing_key_cert, sign_cert);
}
if (auth) {
SET_KEY(current_auth_key, auth);
SET_CERT(auth_key_cert, auth_cert);
}
return 0;
err:
ed25519_keypair_free(id);
ed25519_keypair_free(sign);
ed25519_keypair_free(auth);
tor_cert_free(sign_cert);
tor_cert_free(auth_cert);
return -1;
}
/**
* Running as a server: load, reload, or refresh our ed25519 keys and
* certificates, creating and saving new ones as needed.
*
* Return -1 on failure; 0 on success if the signing key was not replaced;
* and 1 on success if the signing key was replaced.
*/
int
load_ed_keys(const or_options_t *options, time_t now)
{
ed25519_keypair_t *id = NULL;
ed25519_keypair_t *sign = NULL;
ed25519_keypair_t *auth = NULL;
const ed25519_keypair_t *sign_signing_key_with_id = NULL;
const ed25519_keypair_t *use_signing = NULL;
const tor_cert_t *check_signing_cert = NULL;
tor_cert_t *sign_cert = NULL;
tor_cert_t *auth_cert = NULL;
int signing_key_changed = 0;
// It is later than 1972, since otherwise there would be no C compilers.
// (Try to diagnose #22466.)
tor_assert_nonfatal(now >= 2 * 365 * 86400);
#define FAIL(msg) do { \
log_warn(LD_OR, (msg)); \
goto err; \
} while (0)
#define SET_KEY(key, newval) do { \
if ((key) != (newval)) \
ed25519_keypair_free(key); \
key = (newval); \
} while (0)
#define SET_CERT(cert, newval) do { \
if ((cert) != (newval)) \
tor_cert_free(cert); \
cert = (newval); \
} while (0)
#define HAPPENS_SOON(when, interval) \
((when) < now + (interval))
#define EXPIRES_SOON(cert, interval) \
(!(cert) || HAPPENS_SOON((cert)->valid_until, (interval)))
/* XXXX support encrypted identity keys fully */
/* First try to get the signing key to see how it is. */
{
char *fname =
options_get_keydir_fname(options, "ed25519_signing");
sign = ed_key_init_from_file(
fname,
INIT_ED_KEY_NEEDCERT|
INIT_ED_KEY_INCLUDE_SIGNING_KEY_IN_CERT,
LOG_INFO,
NULL, 0, 0, CERT_TYPE_ID_SIGNING, &sign_cert);
tor_free(fname);
check_signing_cert = sign_cert;
use_signing = sign;
}
if (use_signing) {
/* We loaded a signing key with its certificate. */
if (! master_signing_key) {
/* We didn't know one before! */
signing_key_changed = 1;
} else if (! ed25519_pubkey_eq(&use_signing->pubkey,
&master_signing_key->pubkey) ||
! tor_memeq(use_signing->seckey.seckey,
master_signing_key->seckey.seckey,
ED25519_SECKEY_LEN)) {
/* We loaded a different signing key than the one we knew before. */
signing_key_changed = 1;
}
}
if (!use_signing && master_signing_key) {
/* We couldn't load a signing key, but we already had one loaded */
check_signing_cert = signing_key_cert;
use_signing = master_signing_key;
}
const int offline_master =
options->OfflineMasterKey && options->command != CMD_KEYGEN;
const int need_new_signing_key =
NULL == use_signing ||
EXPIRES_SOON(check_signing_cert, 0) ||
(options->command == CMD_KEYGEN && ! options->change_key_passphrase);
const int want_new_signing_key =
need_new_signing_key ||
EXPIRES_SOON(check_signing_cert, options->TestingSigningKeySlop);
/* We can only create a master key if we haven't been told that the
* master key will always be offline. Also, if we have a signing key,
* then we shouldn't make a new master ID key. */
const int can_make_master_id_key = !offline_master &&
NULL == use_signing;
if (need_new_signing_key) {
log_notice(LD_OR, "It looks like I need to generate and sign a new "
"medium-term signing key, because %s. To do that, I "
"need to load%s the permanent master identity key. "
"If the master identity key was not moved or encrypted "
"with a passphrase, this will be done automatically and "
"no further action is required. Otherwise, provide the "
"necessary data using 'tor --keygen' to do it manually.",
(NULL == use_signing) ? "I don't have one" :
EXPIRES_SOON(check_signing_cert, 0) ? "the one I have is expired" :
"you asked me to make one with --keygen",
can_make_master_id_key ? " (or create)" : "");
} else if (want_new_signing_key && !offline_master) {
log_notice(LD_OR, "It looks like I should try to generate and sign a "
"new medium-term signing key, because the one I have is "
"going to expire soon. To do that, I'm going to have to "
"try to load the permanent master identity key. "
"If the master identity key was not moved or encrypted "
"with a passphrase, this will be done automatically and "
"no further action is required. Otherwise, provide the "
"necessary data using 'tor --keygen' to do it manually.");
} else if (want_new_signing_key) {
log_notice(LD_OR, "It looks like I should try to generate and sign a "
"new medium-term signing key, because the one I have is "
"going to expire soon. But OfflineMasterKey is set, so I "
"won't try to load a permanent master identity key. You "
"will need to use 'tor --keygen' to make a new signing "
"key and certificate.");
}
{
uint32_t flags =
(INIT_ED_KEY_SPLIT|
INIT_ED_KEY_EXTRA_STRONG|INIT_ED_KEY_NO_REPAIR);
if (can_make_master_id_key)
flags |= INIT_ED_KEY_CREATE;
if (! need_new_signing_key)
flags |= INIT_ED_KEY_MISSING_SECRET_OK;
if (! want_new_signing_key || offline_master)
flags |= INIT_ED_KEY_OMIT_SECRET;
if (offline_master)
flags |= INIT_ED_KEY_OFFLINE_SECRET;
if (options->command == CMD_KEYGEN)
flags |= INIT_ED_KEY_TRY_ENCRYPTED;
/* Check/Create the key directory */
if (create_keys_directory(options) < 0)
return -1;
char *fname;
if (options->master_key_fname) {
fname = tor_strdup(options->master_key_fname);
flags |= INIT_ED_KEY_EXPLICIT_FNAME;
} else {
fname = options_get_keydir_fname(options, "ed25519_master_id");
}
id = ed_key_init_from_file(
fname,
flags,
LOG_WARN, NULL, 0, 0, 0, NULL);
tor_free(fname);
if (!id) {
if (need_new_signing_key) {
if (offline_master)
FAIL("Can't load master identity key; OfflineMasterKey is set.");
else
FAIL("Missing identity key");
} else {
log_warn(LD_OR, "Master public key was absent; inferring from "
"public key in signing certificate and saving to disk.");
tor_assert(check_signing_cert);
id = tor_malloc_zero(sizeof(*id));
memcpy(&id->pubkey, &check_signing_cert->signing_key,
sizeof(ed25519_public_key_t));
fname = options_get_keydir_fname(options,
"ed25519_master_id_public_key");
if (ed25519_pubkey_write_to_file(&id->pubkey, fname, "type0") < 0) {
log_warn(LD_OR, "Error while attempting to write master public key "
"to disk");
tor_free(fname);
goto err;
}
tor_free(fname);
}
}
if (tor_mem_is_zero((char*)id->seckey.seckey, sizeof(id->seckey)))
sign_signing_key_with_id = NULL;
else
sign_signing_key_with_id = id;
}
if (master_identity_key &&
!ed25519_pubkey_eq(&id->pubkey, &master_identity_key->pubkey)) {
FAIL("Identity key on disk does not match key we loaded earlier!");
}
if (need_new_signing_key && NULL == sign_signing_key_with_id)
FAIL("Can't load master key make a new signing key.");
if (sign_cert) {
if (! sign_cert->signing_key_included)
FAIL("Loaded a signing cert with no key included!");
if (! ed25519_pubkey_eq(&sign_cert->signing_key, &id->pubkey))
FAIL("The signing cert we have was not signed with the master key "
"we loaded!");
if (tor_cert_checksig(sign_cert, &id->pubkey, 0) < 0) {
log_warn(LD_OR, "The signing cert we loaded was not signed "
"correctly: %s!",
tor_cert_describe_signature_status(sign_cert));
goto err;
}
}
if (want_new_signing_key && sign_signing_key_with_id) {
uint32_t flags = (INIT_ED_KEY_CREATE|
INIT_ED_KEY_REPLACE|
INIT_ED_KEY_EXTRA_STRONG|
INIT_ED_KEY_NEEDCERT|
INIT_ED_KEY_INCLUDE_SIGNING_KEY_IN_CERT);
char *fname =
options_get_keydir_fname(options, "ed25519_signing");
ed25519_keypair_free(sign);
tor_cert_free(sign_cert);
sign = ed_key_init_from_file(fname,
flags, LOG_WARN,
sign_signing_key_with_id, now,
options->SigningKeyLifetime,
CERT_TYPE_ID_SIGNING, &sign_cert);
tor_free(fname);
if (!sign)
FAIL("Missing signing key");
use_signing = sign;
signing_key_changed = 1;
tor_assert(sign_cert->signing_key_included);
tor_assert(ed25519_pubkey_eq(&sign_cert->signing_key, &id->pubkey));
tor_assert(ed25519_pubkey_eq(&sign_cert->signed_key, &sign->pubkey));
} else if (want_new_signing_key) {
static ratelim_t missing_master = RATELIM_INIT(3600);
log_fn_ratelim(&missing_master, LOG_WARN, LD_OR,
"Signing key will expire soon, but I can't load the "
"master key to sign a new one!");
}
tor_assert(use_signing);
/* At this point we no longer need our secret identity key. So wipe
* it, if we loaded it in the first place. */
memwipe(id->seckey.seckey, 0, sizeof(id->seckey));
if (options->command == CMD_KEYGEN)
goto end;
if (server_mode(options) &&
(!rsa_ed_crosscert ||
HAPPENS_SOON(rsa_ed_crosscert_expiration, 30*86400))) {
uint8_t *crosscert;
time_t expiration = now+6*30*86400; /* 6 months in the future. */
ssize_t crosscert_len = tor_make_rsa_ed25519_crosscert(&id->pubkey,
get_server_identity_key(),
expiration,
&crosscert);
tor_free(rsa_ed_crosscert);
rsa_ed_crosscert_len = crosscert_len;
rsa_ed_crosscert = crosscert;
rsa_ed_crosscert_expiration = expiration;
}
if (!current_auth_key ||
signing_key_changed ||
EXPIRES_SOON(auth_key_cert, options->TestingAuthKeySlop)) {
auth = ed_key_new(use_signing, INIT_ED_KEY_NEEDCERT,
now,
options->TestingAuthKeyLifetime,
CERT_TYPE_SIGNING_AUTH, &auth_cert);
if (!auth)
FAIL("Can't create auth key");
}
/* We've generated or loaded everything. Put them in memory. */
end:
if (! master_identity_key) {
SET_KEY(master_identity_key, id);
} else {
tor_free(id);
}
if (sign) {
SET_KEY(master_signing_key, sign);
SET_CERT(signing_key_cert, sign_cert);
}
if (auth) {
SET_KEY(current_auth_key, auth);
SET_CERT(auth_key_cert, auth_cert);
}
return signing_key_changed;
err:
ed25519_keypair_free(id);
ed25519_keypair_free(sign);
ed25519_keypair_free(auth);
tor_cert_free(sign_cert);
tor_cert_free(auth_cert);
return -1;
}
static void
test_routerkeys_ed_key_init_split(void *arg)
{
(void) arg;
tor_cert_t *cert = NULL;
ed25519_keypair_t *kp1 = NULL, *kp2 = NULL;
time_t now = time(NULL);
char *fname1 = tor_strdup(get_fname("test_ed_key_3"));
char *fname2 = tor_strdup(get_fname("test_ed_key_4"));
struct stat st;
const uint32_t flags = INIT_ED_KEY_SPLIT|INIT_ED_KEY_MISSING_SECRET_OK;
unlink(fname1);
unlink(fname2);
/* Can't load key that isn't there. */
kp1 = ed_key_init_from_file(fname1, flags, LOG_INFO, NULL, now, 0, 7, &cert);
tt_assert(kp1 == NULL);
tt_assert(cert == NULL);
/* Create a split key */
kp1 = ed_key_init_from_file(fname1, flags|INIT_ED_KEY_CREATE,
LOG_INFO, NULL, now, 0, 7, &cert);
tt_assert(kp1 != NULL);
tt_assert(cert == NULL);
tt_int_op(stat(get_fname("test_ed_key_3_cert"), &st), OP_LT, 0);
tt_int_op(stat(get_fname("test_ed_key_3_secret_key"), &st), OP_EQ, 0);
tt_int_op(stat(get_fname("test_ed_key_3_public_key"), &st), OP_EQ, 0);
/* Load it. */
kp2 = ed_key_init_from_file(fname1, flags|INIT_ED_KEY_CREATE,
LOG_INFO, NULL, now, 0, 7, &cert);
tt_assert(kp2 != NULL);
tt_assert(cert == NULL);
tt_mem_op(kp1, OP_EQ, kp2, sizeof(*kp2));
ed25519_keypair_free(kp2); kp2 = NULL;
/* Okay, try killing the secret key and loading it. */
unlink(get_fname("test_ed_key_3_secret_key"));
kp2 = ed_key_init_from_file(fname1, flags,
LOG_INFO, NULL, now, 0, 7, &cert);
tt_assert(kp2 != NULL);
tt_assert(cert == NULL);
tt_mem_op(&kp1->pubkey, OP_EQ, &kp2->pubkey, sizeof(kp2->pubkey));
tt_assert(tor_mem_is_zero((char*)kp2->seckey.seckey,
sizeof(kp2->seckey.seckey)));
ed25519_keypair_free(kp2); kp2 = NULL;
/* Even when we're told to "create", don't create if there's a public key */
kp2 = ed_key_init_from_file(fname1, flags|INIT_ED_KEY_CREATE,
LOG_INFO, NULL, now, 0, 7, &cert);
tt_assert(kp2 != NULL);
tt_assert(cert == NULL);
tt_mem_op(&kp1->pubkey, OP_EQ, &kp2->pubkey, sizeof(kp2->pubkey));
tt_assert(tor_mem_is_zero((char*)kp2->seckey.seckey,
sizeof(kp2->seckey.seckey)));
ed25519_keypair_free(kp2); kp2 = NULL;
/* Make sure we fail on a tag mismatch, though */
kp2 = ed_key_init_from_file(fname1, flags,
LOG_INFO, NULL, now, 0, 99, &cert);
tt_assert(kp2 == NULL);
done:
ed25519_keypair_free(kp1);
ed25519_keypair_free(kp2);
tor_cert_free(cert);
tor_free(fname1);
tor_free(fname2);
}
static void
test_routerkeys_ed_key_init_basic(void *arg)
{
(void) arg;
tor_cert_t *cert = NULL, *cert2 = NULL;
ed25519_keypair_t *kp1 = NULL, *kp2 = NULL, *kp3 = NULL;
time_t now = time(NULL);
char *fname1 = tor_strdup(get_fname("test_ed_key_1"));
char *fname2 = tor_strdup(get_fname("test_ed_key_2"));
struct stat st;
unlink(fname1);
unlink(fname2);
/* Fail to load a key that isn't there. */
kp1 = ed_key_init_from_file(fname1, 0, LOG_INFO, NULL, now, 0, 7, &cert);
tt_assert(kp1 == NULL);
tt_assert(cert == NULL);
/* Create the key if requested to do so. */
kp1 = ed_key_init_from_file(fname1, INIT_ED_KEY_CREATE, LOG_INFO,
NULL, now, 0, 7, &cert);
tt_assert(kp1 != NULL);
tt_assert(cert == NULL);
tt_int_op(stat(get_fname("test_ed_key_1_cert"), &st), OP_LT, 0);
tt_int_op(stat(get_fname("test_ed_key_1_secret_key"), &st), OP_EQ, 0);
/* Fail to load if we say we need a cert */
kp2 = ed_key_init_from_file(fname1, INIT_ED_KEY_NEEDCERT, LOG_INFO,
NULL, now, 0, 7, &cert);
tt_assert(kp2 == NULL);
/* Fail to load if we say the wrong key type */
kp2 = ed_key_init_from_file(fname1, 0, LOG_INFO,
NULL, now, 0, 6, &cert);
tt_assert(kp2 == NULL);
/* Load successfully if we're not picky, whether we say "create" or not. */
kp2 = ed_key_init_from_file(fname1, INIT_ED_KEY_CREATE, LOG_INFO,
NULL, now, 0, 7, &cert);
tt_assert(kp2 != NULL);
tt_assert(cert == NULL);
tt_mem_op(kp1, OP_EQ, kp2, sizeof(*kp1));
ed25519_keypair_free(kp2); kp2 = NULL;
kp2 = ed_key_init_from_file(fname1, 0, LOG_INFO,
NULL, now, 0, 7, &cert);
tt_assert(kp2 != NULL);
tt_assert(cert == NULL);
tt_mem_op(kp1, OP_EQ, kp2, sizeof(*kp1));
ed25519_keypair_free(kp2); kp2 = NULL;
/* Now create a key with a cert. */
kp2 = ed_key_init_from_file(fname2, (INIT_ED_KEY_CREATE|
INIT_ED_KEY_NEEDCERT),
LOG_INFO, kp1, now, 7200, 7, &cert);
tt_assert(kp2 != NULL);
tt_assert(cert != NULL);
tt_mem_op(kp1, OP_NE, kp2, sizeof(*kp1));
tt_int_op(stat(get_fname("test_ed_key_2_cert"), &st), OP_EQ, 0);
tt_int_op(stat(get_fname("test_ed_key_2_secret_key"), &st), OP_EQ, 0);
tt_assert(cert->cert_valid == 1);
tt_mem_op(&cert->signed_key, OP_EQ, &kp2->pubkey, 32);
/* Now verify we can load the cert... */
kp3 = ed_key_init_from_file(fname2, (INIT_ED_KEY_CREATE|
INIT_ED_KEY_NEEDCERT),
LOG_INFO, kp1, now, 7200, 7, &cert2);
tt_mem_op(kp2, OP_EQ, kp3, sizeof(*kp2));
tt_mem_op(cert2->encoded, OP_EQ, cert->encoded, cert->encoded_len);
ed25519_keypair_free(kp3); kp3 = NULL;
tor_cert_free(cert2); cert2 = NULL;
/* ... even without create... */
kp3 = ed_key_init_from_file(fname2, INIT_ED_KEY_NEEDCERT,
LOG_INFO, kp1, now, 7200, 7, &cert2);
tt_mem_op(kp2, OP_EQ, kp3, sizeof(*kp2));
tt_mem_op(cert2->encoded, OP_EQ, cert->encoded, cert->encoded_len);
ed25519_keypair_free(kp3); kp3 = NULL;
tor_cert_free(cert2); cert2 = NULL;
/* ... but that we don't crash or anything if we say we don't want it. */
kp3 = ed_key_init_from_file(fname2, INIT_ED_KEY_NEEDCERT,
LOG_INFO, kp1, now, 7200, 7, NULL);
tt_mem_op(kp2, OP_EQ, kp3, sizeof(*kp2));
ed25519_keypair_free(kp3); kp3 = NULL;
/* Fail if we're told the wrong signing key */
kp3 = ed_key_init_from_file(fname2, INIT_ED_KEY_NEEDCERT,
LOG_INFO, kp2, now, 7200, 7, &cert2);
tt_assert(kp3 == NULL);
tt_assert(cert2 == NULL);
done:
ed25519_keypair_free(kp1);
ed25519_keypair_free(kp2);
ed25519_keypair_free(kp3);
tor_cert_free(cert);
tor_cert_free(cert2);
tor_free(fname1);
tor_free(fname2);
}
