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Diffstat (limited to 'spec/padding-spec/connection-level-padding.md')
| -rw-r--r-- | spec/padding-spec/connection-level-padding.md | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/spec/padding-spec/connection-level-padding.md b/spec/padding-spec/connection-level-padding.md index 3bb7f12..b0450d7 100644 --- a/spec/padding-spec/connection-level-padding.md +++ b/spec/padding-spec/connection-level-padding.md @@ -1,7 +1,9 @@ <a id="padding-spec.txt-2"></a> + # Connection-level padding <a id="padding-spec.txt-2.1"></a> + ## Background Tor clients and relays make use of CELL_PADDING to reduce the resolution of @@ -87,6 +89,7 @@ measurement is unidirectional, and so traffic must be sent by both parties in order to prevent record splitting. <a id="padding-spec.txt-2.2"></a> + ## Implementation Tor clients currently maintain one TLS connection to their Guard node to @@ -129,6 +132,7 @@ queue that they practically can, and if this queue is already nonempty, padding should not be scheduled until after the queue does become empty.) <a id="padding-spec.txt-2.3"></a> + ## Padding Cell Timeout Distribution Statistics To limit the amount of padding sent, instead of sampling each endpoint @@ -160,6 +164,7 @@ values for each random variable: ``` <a id="padding-spec.txt-2.4"></a> + ## Maximum overhead bounds With the default parameters and the above distribution, we expect a @@ -178,6 +183,7 @@ roughly the current amount of Tor directory traffic[11]. Of course, our idle, so we expect the actual overhead to be much lower than this. <a id="padding-spec.txt-2.5"></a> + ## Reducing or Disabling Padding via Negotiation To allow mobile clients to either disable or reduce their padding overhead, @@ -222,6 +228,7 @@ Clients and bridges MUST reject padding negotiation messages from relays, and close the channel if they receive one. <a id="padding-spec.txt-2.6"></a> + ## Consensus Parameters Governing Behavior Connection-level padding is controlled by the following consensus parameters: @@ -280,4 +287,3 @@ Connection-level padding is controlled by the following consensus parameters: open. - Default: 3600 ``` - |