Opened 2 months ago

#31972 new defect

tor-spec: We should specify how clients pick between different handshake types

Reported by: ahf Owned by:
Priority: Medium Milestone: Tor: unspecified
Component: Core Tor/Tor Version: Tor: unspecified
Severity: Normal Keywords: tor-spec
Cc: Actual Points:
Parent ID: Points:
Reviewer: Sponsor:

Description

As far as I can tell we do currently not specify how a client should pick between TAP or NTor handshakes in tor-spec.txt.

We do specify under TAP that the handshake should not be used because it is slow and weak, but we do not specify anywhere how a client should pick among the set of handshakes.

This is currently not a big issue because we only have two handshake types and Ntor is much preferred over TAP, but in a future where we might have different more fancy handshakes (PQ?) then it might be good to specify the order of which clients should prefer a given handshake over another.

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