/**
* how many elements we were supplied with from the client
*/
- uint16_t element_count;
+ uint32_t element_count;
/**
* how many elements actually are used after applying the mask
*/
- uint16_t used_element_count;
+ uint32_t used_element_count;
/**
* how many bytes the mask is long.
* just for convenience so we don't have to re-re-re calculate it each time
*/
- uint16_t mask_length;
+ uint32_t mask_length;
/**
* all the vector elements we received
/**
* Service's own public key represented as string
*/
-static uint16_t my_pubkey_external_length = 0;
+static uint32_t my_pubkey_external_length = 0;
/**
* Service's own n
* @return an MPI value containing the calculated sum, never NULL
*/
static gcry_mpi_t
-compute_square_sum (gcry_mpi_t * vector, uint16_t length)
+compute_square_sum (gcry_mpi_t * vector, uint32_t length)
{
gcry_mpi_t elem;
gcry_mpi_t sum;
* @return the initialized vector, never NULL
*/
static gcry_mpi_t *
-initialize_mpi_vector (uint16_t length)
+initialize_mpi_vector (uint32_t length)
{
uint32_t i;
gcry_mpi_t * output = GNUNET_malloc (sizeof (gcry_mpi_t) * length);
* @return an array of MPI values with random values
*/
static gcry_mpi_t *
-generate_random_vector (uint16_t length)
+generate_random_vector (uint32_t length)
{
gcry_mpi_t * random_vector;
int32_t value;
static struct ServiceSession *
find_matching_session (struct ServiceSession * tail,
const struct GNUNET_HashCode * key,
- uint16_t element_count,
+ uint32_t element_count,
enum SessionState * state,
const struct GNUNET_PeerIdentity * peerid)
{
struct ServiceSession * response)
{
struct GNUNET_SCALARPRODUCT_service_response * msg;
- uint16_t msg_length = 0;
+ uint32_t msg_length = 0;
unsigned char * current = NULL;
unsigned char * element_exported = NULL;
size_t element_length = 0;
msg->header.type = htons (GNUNET_MESSAGE_TYPE_SCALARPRODUCT_BOB_TO_ALICE);
msg->header.size = htons (msg_length);
- msg->element_count = htons (request->element_count);
- msg->used_element_count = htons (request->used_element_count);
+ msg->element_count = htonl (request->element_count);
+ msg->used_element_count = htonl (request->used_element_count);
memcpy (&msg->key, &request->key, sizeof (struct GNUNET_HashCode));
current = (unsigned char *) &msg[1];
int ret = GNUNET_SYSERR;
unsigned int * p;
unsigned int * q;
- uint16_t count;
+ uint32_t count;
gcry_mpi_t * rand = NULL;
gcry_mpi_t * r = NULL;
gcry_mpi_t * r_prime = NULL;
struct GNUNET_SCALARPRODUCT_service_request * msg;
unsigned int i;
unsigned int j;
- uint16_t msg_length;
+ uint32_t msg_length;
size_t element_length = 0; // initialized by gcry_mpi_print, but the compiler doesn't know that
gcry_mpi_t a;
uint32_t value;
msg = GNUNET_malloc (msg_length);
msg->header.type = htons (GNUNET_MESSAGE_TYPE_SCALARPRODUCT_ALICE_TO_BOB);
memcpy (&msg->key, &session->key, sizeof (struct GNUNET_HashCode));
- msg->mask_length = htons (session->mask_length);
- msg->pk_length = htons (my_pubkey_external_length);
- msg->used_element_count = htons (session->used_element_count);
- msg->element_count = htons (session->element_count);
+ msg->mask_length = htonl (session->mask_length);
+ msg->pk_length = htonl (my_pubkey_external_length);
+ msg->used_element_count = htonl (session->used_element_count);
+ msg->element_count = htonl (session->element_count);
msg->header.size = htons (msg_length);
// fill in the payload
{
const struct GNUNET_SCALARPRODUCT_client_request * msg = (const struct GNUNET_SCALARPRODUCT_client_request *) message;
struct ServiceSession * session;
- uint16_t element_count;
- uint16_t mask_length;
- uint16_t msg_type;
+ uint32_t element_count;
+ uint32_t mask_length;
+ uint32_t msg_type;
int32_t * vector;
uint32_t i;
}
msg_type = ntohs (msg->header.type);
- element_count = ntohs (msg->element_count);
- mask_length = ntohs (msg->mask_length);
+ element_count = ntohl (msg->element_count);
+ mask_length = ntohl (msg->mask_length);
//sanity check: is the message as long as the message_count fields suggests?
if (( ntohs (msg->header.size) != (sizeof (struct GNUNET_SCALARPRODUCT_client_request) + element_count * sizeof (int32_t) + mask_length))
compute_scalar_product (struct ServiceSession * session,
gcry_mpi_t * r, gcry_mpi_t * r_prime, gcry_mpi_t s, gcry_mpi_t s_prime)
{
- uint16_t count;
+ uint32_t count;
gcry_mpi_t t;
gcry_mpi_t u;
gcry_mpi_t utick;
struct GNUNET_SCALARPRODUCT_client_response * msg;
unsigned char * product_exported = NULL;
size_t product_length = 0;
- uint16_t msg_length = 0;
+ uint32_t msg_length = 0;
int8_t range = -1;
gcry_error_t rc;
int sign;
{
struct ServiceSession * session;
const struct GNUNET_SCALARPRODUCT_service_request * msg = (const struct GNUNET_SCALARPRODUCT_service_request *) message;
- uint16_t mask_length;
- uint16_t pk_length;
- uint16_t used_elements;
- uint16_t element_count;
- uint16_t msg_length;
+ uint32_t mask_length;
+ uint32_t pk_length;
+ uint32_t used_elements;
+ uint32_t element_count;
+ uint32_t msg_length;
unsigned char * current;
struct ServiceSession * responder_session;
int32_t i = -1;
GNUNET_break_op(0);
return GNUNET_SYSERR;
}
- mask_length = ntohs (msg->mask_length);
- pk_length = ntohs (msg->pk_length);
- used_elements = ntohs (msg->used_element_count);
- element_count = ntohs (msg->element_count);
+ mask_length = ntohl (msg->mask_length);
+ pk_length = ntohl (msg->pk_length);
+ used_elements = ntohl (msg->used_element_count);
+ element_count = ntohl (msg->element_count);
msg_length = sizeof (struct GNUNET_SCALARPRODUCT_service_request)
+ mask_length + pk_length + used_elements * PAILLIER_ELEMENT_LENGTH;
memcpy (&session->peer, &session->peer, sizeof (struct GNUNET_PeerIdentity));
session->state = SERVICE_REQUEST_RECEIVED;
- session->element_count = ntohs (msg->element_count);
+ session->element_count = ntohl (msg->element_count);
session->used_element_count = used_elements;
session->tunnel = tunnel;
struct ServiceSession * session;
const struct GNUNET_SCALARPRODUCT_service_response * msg = (const struct GNUNET_SCALARPRODUCT_service_response *) message;
unsigned char * current;
- uint16_t count;
+ uint32_t count;
gcry_mpi_t s = NULL;
gcry_mpi_t s_prime = NULL;
size_t read;
size_t i;
- uint16_t used_element_count;
+ uint32_t used_element_count;
size_t msg_size;
gcry_mpi_t * r = NULL;
gcry_mpi_t * r_prime = NULL;
GNUNET_break_op (0);
goto invalid_msg;
}
- used_element_count = ntohs (msg->used_element_count);
+ used_element_count = ntohl (msg->used_element_count);
msg_size = sizeof (struct GNUNET_SCALARPRODUCT_service_response)
+ 2 * used_element_count * PAILLIER_ELEMENT_LENGTH
+ 2 * PAILLIER_ELEMENT_LENGTH;