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Diffstat (limited to 'spec/path-spec/when-we-build.md')
| -rw-r--r-- | spec/path-spec/when-we-build.md | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/spec/path-spec/when-we-build.md b/spec/path-spec/when-we-build.md index 4320c58..ca9b704 100644 --- a/spec/path-spec/when-we-build.md +++ b/spec/path-spec/when-we-build.md @@ -1,7 +1,9 @@ <a id="path-spec.txt-2.1"></a> + ## When we build <a id="path-spec.txt-2.1.0"></a> + ### We don't build circuits until we have enough directory info There's a class of possible attacks where our directory servers @@ -56,6 +58,7 @@ If the consensus lists zero exit-flagged relays, Tor instead uses the fraction of middle relays. <a id="path-spec.txt-2.1.1"></a> + ### Clients build circuits preemptively When running as a client, Tor tries to maintain at least a certain @@ -90,6 +93,7 @@ The Tor client SHOULD NOT store its list of predicted requests to a persistent medium. <a id="path-spec.txt-2.1.2"></a> + ### Clients build circuits on demand Additionally, when a client request exists that no circuit (built or @@ -109,6 +113,7 @@ In some cases we can reuse an already established circuit if it's clean; see Section 2.3 (cannibalizing circuits) for details. <a id="path-spec.txt-2.1.3"></a> + ### Relays build circuits for testing reachability and bandwidth Tor relays test reachability of their ORPort once they have @@ -131,11 +136,13 @@ established a circuit, but they use an ordinary exit circuit for this purpose. <a id="path-spec.txt-2.1.4"></a> + ### Hidden-service circuits See section 4 below. <a id="path-spec.txt-2.1.5"></a> + ### Rate limiting of failed circuits If we fail to build a circuit N times in a X second period (see Section @@ -144,6 +151,7 @@ have elapsed. XXXX <a id="path-spec.txt-2.1.6"></a> + ### When to tear down circuits Clients should tear down circuits (in general) only when those circuits @@ -158,4 +166,3 @@ stream-less circuits only under one of the following conditions: - The circuit is dirty (has had a stream attached), and it has been dirty for at least MaxCircuitDirtiness. ``` - |