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| author | Isis Lovecruft <isis@torproject.org> | 2017-12-13 23:56:25 +0000 |
|---|---|---|
| committer | Isis Lovecruft <isis@torproject.org> | 2017-12-14 00:03:08 +0000 |
| commit | d3f18989ce583a348d3e525e8abee314f18fe91e (patch) | |
| tree | 08499725e74eef14707a82da18ba37b5a4cfed79 /proposals/249-large-create-cells.txt | |
| parent | 686aaf110551c6d586f069e3ae6f8be6820bce8d (diff) | |
| download | torspec-d3f18989ce583a348d3e525e8abee314f18fe91e.tar.gz torspec-d3f18989ce583a348d3e525e8abee314f18fe91e.zip | |
prop#249: Add example of how to avoid exhausting RELAY_EARLY cells.
Diffstat (limited to 'proposals/249-large-create-cells.txt')
| -rw-r--r-- | proposals/249-large-create-cells.txt | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/proposals/249-large-create-cells.txt b/proposals/249-large-create-cells.txt index 54516be..887001a 100644 --- a/proposals/249-large-create-cells.txt +++ b/proposals/249-large-create-cells.txt @@ -88,7 +88,12 @@ Status: Open 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. + The others MAY arrive in RELAY_EARLY cells. For many handshakes, for + the possible lengths of many types of circuits, sending all EXTEND2 cells + inside RELAY_EARLY cells will not be possible. For example, for a + fragmented EXTEND2 cell with parts A B C D E, A is the only fragment that + MUST be sent within a RELAY_EARLY. For parts B C D E, these are merely + sent as EXTEND2{CREATE2V} 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. |