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48 lines
1.7 KiB
Plaintext
48 lines
1.7 KiB
Plaintext
Filename: 150-exclude-exit-nodes.txt
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Title: Exclude Exit Nodes from a circuit
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Author: Mfr
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Created: 2008-06-15
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Status: Closed
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Implemented-In: 0.2.1.3-alpha
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Overview
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Right now, Tor users can manually exclude a node from all positions
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in their circuits created using the directive ExcludeNodes.
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This proposal makes this exclusion less restrictive, allowing users to
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exclude a node only from the exit part of a circuit.
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Motivation
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This feature would Help the integration into vidalia (tor exit
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branch) or other tools, of features to exclude a country for exit
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without reducing circuits possibilities, and privacy. This feature
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could help people from a country were many sites are blocked to
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exclude this country for browsing, giving them a more stable
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navigation. It could also add the possibility for the user to
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exclude a currently used exit node.
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Implementation
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ExcludeExitNodes is similar to ExcludeNodes except it's only
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the exit node which is excluded for circuit build.
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Tor doesn't warn if node from this list is not an exit node.
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Security implications:
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Open also possibilities for a future user bad exit reporting
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Risks:
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Use of this option can make users partitionable under certain attack
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assumptions. However, ExitNodes already creates this possibility,
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so there isn't much increased risk in ExcludeExitNodes.
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We should still encourage people who exclude an exit node because
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of bad behavior to report it instead of just adding it to their
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ExcludeExit list. It would be unfortunate if we didn't find out
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about broken exits because of this option. This issue can probably
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be addressed sufficiently with documentation.
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