[tor-bugs] #33648 [Core Tor/Tor]: vanguards: What is the recommended value?

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#33648: vanguards: What is the recommended value?
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 Reporter:  cypherpunks   |          Owner:  mikeperry
     Type:  task          |         Status:  assigned
 Priority:  Medium        |      Milestone:  Tor: unspecified
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:  vanguards     |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
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Comment (by Thernet):

 Replying to [comment:5 mikeperry]:
 > Q1 - Smaller values for max circuit age may make you stand out a little.


 "Circuit Fingerprinting Attacks: Passive Deanonymization of Tor Hidden
 Service"
 ISBN 978-1-939133-11-3

 {{{
 First, all circuits should have **similar lifetime**.
 Client IP and hidden service IP lasts either a **very short or very long
 time**,
 and this is **very identifying**.
 }}}

 Vanguards' circ_max_age_hours makes you unique. Are you sure this
 configurable parameter is safe to use for everyone?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33648#comment:8>
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