nihilist/tor
1
0
Fork 0
mirror of https://gitlab.torproject.org/tpo/core/tor.git synced 2024-11-14 07:03:44 +01:00
Code Issues Packages Projects Releases Wiki Activity

CREATE_FAST is for when you don't know the onion key

Browse Source 
it isn't (anymore) for when you think you can get away with saving some
crypto operations.
This commit is contained in:
Roger Dingledine 2017-07-03 17:16:26 -04:00
parent 69fba1f2cd
commit 943d284752
1 changed files with 2 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/or/circuitbuild.c
View File

@ -981,15 +981,11 @@ circuit_send_first_onion_skin(origin_circuit_t *circ)
node = node_get_by_id(circ->base_.n_chan->identity_digest); node = node_get_by_id(circ->base_.n_chan->identity_digest);
fast = should_use_create_fast_for_circuit(circ); fast = should_use_create_fast_for_circuit(circ);
if (!fast) { if (!fast) {
/* We are an OR and we know the right onion key: we should /* We know the right onion key: we should send a create cell. */
* send a create cell.
*/
circuit_pick_create_handshake(&cc.cell_type, &cc.handshake_type, circuit_pick_create_handshake(&cc.cell_type, &cc.handshake_type,
circ->cpath->extend_info); circ->cpath->extend_info);
} else { } else {
/* We are not an OR, and we're building the first hop of a circuit to a /* We don't know an onion key, so we need to fall back to CREATE_FAST. */
* new OR: we can be speedy and use CREATE_FAST to save an RSA operation
* and a DH operation. */
cc.cell_type = CELL_CREATE_FAST; cc.cell_type = CELL_CREATE_FAST;
cc.handshake_type = ONION_HANDSHAKE_TYPE_FAST; cc.handshake_type = ONION_HANDSHAKE_TYPE_FAST;
} }