147 Eliminate the need for v2 directories in generating v3 directories [ACCEPTED]
148 Stream end reasons from the client side should be uniform [ACCEPTED]
149 Using data from NETINFO cells [OPEN]
-150 Exclude Exit Nodes from a circuit [DRAFT]
+150 Exclude Exit Nodes from a circuit [ACCEPTED]
151 Improving Tor Path Selection [DRAFT]
133 Incorporate Unreachable ORs into the Tor Network
141 Download server descriptors on demand
144 Increase the diversity of circuits by detecting nodes belonging the
- 150 Exclude Exit Nodes from a circuit
151 Improving Tor Path Selection
OPEN:
121 Hidden Service Authentication
140 Provide diffs between consensuses
147 Eliminate the need for v2 directories in generating v3 directories
148 Stream end reasons from the client side should be uniform
+ 150 Exclude Exit Nodes from a circuit
META:
000 Index of Tor Proposals
001 The Tor Proposal Process
Version: $Revision$
Author: Mfr
Created: 2008-06-15
-Status: Draft
+Status: Accepted
Overview
- Right now, Tor user can manually exclude a node of all the part of
- circuits created using the directive ExcludeNodes.
- This proposal makes this exclusion, less restrictive, allowing to
- exclude a node only on the exit part of a circuit.
+ Right now, Tor users can manually exclude a node from all positions
+ in their circuits created using the directive ExcludeNodes.
+ This proposal makes this exclusion less restrictive, allowing users to
+ exclude a node only from the exit part of a circuit.
Motivation
- Helping the integration into vidalia (tor exit branch)or other tools,
- of features to exclude a country for exit without reducing
- circuits possibilities, an privacy.
- This feature could help people from a country were many sites
- are blocked to exclude this country for browsing, giving them a
- more stable navigation.
- Add the possibility for the user to exclude the current used exit
- node.
-
-
+ This feature would Help the integration into vidalia (tor exit
+ branch) or other tools, of features to exclude a country for exit
+ without reducing circuits possibilities, and privacy. This feature
+ could help people from a country were many sites are blocked to
+ exclude this country for browsing, giving them a more stable
+ navigation. It could also add the possibility for the user to
+ exclude a currently used exit node.
+
Implementation
ExcludeExitNodes is similar to ExcludeNodes except it's only
the exit node which is excluded for circuit build.
-
+
Tor doesn't warn if node from this list is not an exit node.
Security implications:
- Open also possibilities for a future user bad exit reporting.
\ No newline at end of file
+ Open also possibilities for a future user bad exit reporting
+
+Risks:
+
+ Use of this option can make users partitionable under certain attak
+ assumptions. However, ExitNodes already creates this possibility,
+ so there isn't much increased risk in ExcludeExitNods.
+
+ We should still encourage people who exclude an exit node because
+ of bad behavior to report it instead of just adding it to their
+ ExcludeExit list. It would be unfortunate if we didn't find out
+ about broken exits because of this option. This issue can probably
+ be addressed sufficiently with documentation.
+