bool tr_rand_buffer(void* buffer, size_t length)
{
bool ret;
tr_lock* rng_lock = get_rng_lock();
TR_ASSERT(buffer != NULL);
tr_lockLock(rng_lock);
ret = check_result(API(RNG_GenerateBlock)(get_rng(), buffer, length));
tr_lockUnlock(rng_lock);
return ret;
}
bool
tr_dh_make_key (tr_dh_ctx_t raw_handle,
size_t private_key_length UNUSED,
uint8_t * public_key,
size_t * public_key_length)
{
struct tr_dh_ctx * handle = raw_handle;
word32 my_private_key_length, my_public_key_length;
tr_lock * rng_lock = get_rng_lock ();
assert (handle != NULL);
assert (public_key != NULL);
if (handle->private_key == NULL)
handle->private_key = tr_malloc (handle->key_length);
tr_lockLock (rng_lock);
if (!check_result (DhGenerateKeyPair (&handle->dh, get_rng (),
handle->private_key, &my_private_key_length,
public_key, &my_public_key_length)))
{
tr_lockUnlock (rng_lock);
return false;
}
tr_lockUnlock (rng_lock);
tr_dh_align_key (public_key, my_public_key_length, handle->key_length);
handle->private_key_length = my_private_key_length;
if (public_key_length != NULL)
*public_key_length = handle->key_length;
return true;
}