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| author | Nick Mathewson <nickm@torproject.org> | 2015-11-16 10:46:49 -0500 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2015-11-16 10:47:04 -0500 |
| commit | e316823455a4b23f61d6ccf586dad5204f167235 (patch) | |
| tree | aa62f4246329444b6acfc69c778af94c4707409e /proposals/249-large-create-cells.txt | |
| parent | 11bfee42b4e860524ba6c8941089ae5dfed5932a (diff) | |
| download | torspec-e316823455a4b23f61d6ccf586dad5204f167235.tar.gz torspec-e316823455a4b23f61d6ccf586dad5204f167235.zip | |
Add a relay_early section to prop249
Diffstat (limited to 'proposals/249-large-create-cells.txt')
| -rw-r--r-- | proposals/249-large-create-cells.txt | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/proposals/249-large-create-cells.txt b/proposals/249-large-create-cells.txt index 793ea92..69020cf 100644 --- a/proposals/249-large-create-cells.txt +++ b/proposals/249-large-create-cells.txt @@ -77,7 +77,17 @@ Status: Draft If any intervening cells are received, the receiver SHOULD destroy the circuit. -4. Example +4. Interacting with RELAY_EARLY cells + + The first EXTEND2 cell in a batch must arrive in a RELAY_EARLY cell. + The others MAY arrive in RELAY_EARLY cells. + + Note that this change leaks the size of the handshake being used to + intermediate relays. We should analyze this and see whether it matters. + Clients MAY send RELAY_DROP cells during circuit construction in order to + hide the true size of their handshakes. + +5. Example So for example, if we are a client, and we need to send a 2000-byte handshake to extend a circuit from relay X to relay Y, we might send @@ -119,7 +129,7 @@ Status: Draft Upon receiving this last cell, the relay X would send a create2v cell to Y, containing the entire handshake. -5. Migration +6. Migration We can and should implement the EXTEND2 fragmentation feature before we implement anything that uses it. If we can get it widely deployed @@ -132,7 +142,7 @@ Status: Draft Relays MAY send CREATE2V and CREATED2V cells to relays that don't support them, since unrecognized cell types are ignored. -6. Resource management issues +7. Resource management issues This feature requires relays and clients to buffer EXTEND2 cell bodies for incoming cells until the entire CREATE2V/CREATED2V body |