[tor-bugs] #22992 [Core Tor/Tor]: master pubkey of the hidden service quantum computer resistance
Tor Bug Tracker & Wiki
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Fri Jul 21 04:33:21 UTC 2017
#22992: master pubkey of the hidden service quantum computer resistance
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Reporter: Dbryrtfbcbhgf | Owner:
Type: defect | Status: new
Priority: Medium | Milestone: Tor: very long term
Component: Core Tor/Tor | Version:
Severity: Normal | Resolution:
Keywords: | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Changes (by yawning):
* priority: High => Medium
* milestone: Tor: 0.3.2.x-final => Tor: very long term
Comment:
> what will be done if quantum computers can compute the private key of
the ed25519 master pubkey "of the hidden services"
Migrate to an entirely different HS architecture.
There is (to my knowledge) no PQ signature algorithm currently that has
public keys that are suitable for use as addresses. Regardless, all the
other crypto would need to use PQ crypto before this even matters in the
slightest.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22992#comment:1>
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