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client_id -> public_key

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irungentoo 2015-07-27 15:23:32 -04:00
parent 5def57afcf
commit fa5df6aa17
No known key found for this signature in database
GPG Key ID: 10349DC9BED89E98
2 changed files with 18 additions and 17 deletions
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22
toxcore/DHT.c
View File

@ -97,15 +97,15 @@ int id_closest(const uint8_t *id, const uint8_t *id1, const uint8_t *id2)
* If shared key is already in shared_keys, copy it to shared_key.
* else generate it into shared_key and copy it to shared_keys
*/
void get_shared_key(Shared_Keys *shared_keys, uint8_t *shared_key, const uint8_t *secret_key, const uint8_t *client_id)
void get_shared_key(Shared_Keys *shared_keys, uint8_t *shared_key, const uint8_t *secret_key, const uint8_t *public_key)
{
uint32_t i, num = ~0, curr = 0;
for (i = 0; i < MAX_KEYS_PER_SLOT; ++i) {
int index = client_id[30] * MAX_KEYS_PER_SLOT + i;
int index = public_key[30] * MAX_KEYS_PER_SLOT + i;
if (shared_keys->keys[index].stored) {
if (memcmp(client_id, shared_keys->keys[index].client_id, CLIENT_ID_SIZE) == 0) {
if (memcmp(public_key, shared_keys->keys[index].public_key, CLIENT_ID_SIZE) == 0) {
memcpy(shared_key, shared_keys->keys[index].shared_key, crypto_box_BEFORENMBYTES);
++shared_keys->keys[index].times_requested;
shared_keys->keys[index].time_last_requested = unix_time();
@ -129,31 +129,31 @@ void get_shared_key(Shared_Keys *shared_keys, uint8_t *shared_key, const uint8_t
}
}
encrypt_precompute(client_id, secret_key, shared_key);
encrypt_precompute(public_key, secret_key, shared_key);
if (num != (uint32_t)~0) {
shared_keys->keys[curr].stored = 1;
shared_keys->keys[curr].times_requested = 1;
memcpy(shared_keys->keys[curr].client_id, client_id, CLIENT_ID_SIZE);
memcpy(shared_keys->keys[curr].public_key, public_key, CLIENT_ID_SIZE);
memcpy(shared_keys->keys[curr].shared_key, shared_key, crypto_box_BEFORENMBYTES);
shared_keys->keys[curr].time_last_requested = unix_time();
}
}
/* Copy shared_key to encrypt/decrypt DHT packet from client_id into shared_key
/* Copy shared_key to encrypt/decrypt DHT packet from public_key into shared_key
* for packets that we receive.
*/
void DHT_get_shared_key_recv(DHT *dht, uint8_t *shared_key, const uint8_t *client_id)
void DHT_get_shared_key_recv(DHT *dht, uint8_t *shared_key, const uint8_t *public_key)
{
get_shared_key(&dht->shared_keys_recv, shared_key, dht->self_secret_key, client_id);
get_shared_key(&dht->shared_keys_recv, shared_key, dht->self_secret_key, public_key);
}
/* Copy shared_key to encrypt/decrypt DHT packet from client_id into shared_key
/* Copy shared_key to encrypt/decrypt DHT packet from public_key into shared_key
* for packets that we send.
*/
void DHT_get_shared_key_sent(DHT *dht, uint8_t *shared_key, const uint8_t *client_id)
void DHT_get_shared_key_sent(DHT *dht, uint8_t *shared_key, const uint8_t *public_key)
{
get_shared_key(&dht->shared_keys_sent, shared_key, dht->self_secret_key, client_id);
get_shared_key(&dht->shared_keys_sent, shared_key, dht->self_secret_key, public_key);
}
void to_net_family(IP *ip)

13
toxcore/DHT.h
View File

@ -182,7 +182,7 @@ int unpack_nodes(Node_format *nodes, uint16_t max_num_nodes, uint16_t *processed
#define KEYS_TIMEOUT 600
typedef struct {
struct {
uint8_t client_id[CLIENT_ID_SIZE];
uint8_t public_key[CLIENT_ID_SIZE];
uint8_t shared_key[crypto_box_BEFORENMBYTES];
uint32_t times_requested;
uint8_t stored; /* 0 if not, 1 if is */
@ -241,17 +241,18 @@ typedef struct {
* If shared key is already in shared_keys, copy it to shared_key.
* else generate it into shared_key and copy it to shared_keys
*/
void get_shared_key(Shared_Keys *shared_keys, uint8_t *shared_key, const uint8_t *secret_key, const uint8_t *client_id);
void get_shared_key(Shared_Keys *shared_keys, uint8_t *shared_key, const uint8_t *secret_key,
const uint8_t *public_key);
/* Copy shared_key to encrypt/decrypt DHT packet from client_id into shared_key
/* Copy shared_key to encrypt/decrypt DHT packet from public_key into shared_key
* for packets that we receive.
*/
void DHT_get_shared_key_recv(DHT *dht, uint8_t *shared_key, const uint8_t *client_id);
void DHT_get_shared_key_recv(DHT *dht, uint8_t *shared_key, const uint8_t *public_key);
/* Copy shared_key to encrypt/decrypt DHT packet from client_id into shared_key
/* Copy shared_key to encrypt/decrypt DHT packet from public_key into shared_key
* for packets that we send.
*/
void DHT_get_shared_key_sent(DHT *dht, uint8_t *shared_key, const uint8_t *client_id);
void DHT_get_shared_key_sent(DHT *dht, uint8_t *shared_key, const uint8_t *public_key);
void DHT_getnodes(DHT *dht, const IP_Port *from_ipp, const uint8_t *from_id, const uint8_t *which_id);