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Re: [tor-bugs] #22006 [Core Tor/Tor]: prop224: Validate ed25519 pubkeys to remove torsion component
#22006: prop224: Validate ed25519 pubkeys to remove torsion component
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Reporter: asn | Owner:
Type: defect | Status: new
Priority: Medium | Milestone: Tor: 0.3.1.x-final
Component: Core Tor/Tor | Version:
Severity: Normal | Resolution:
Keywords: tor-hs prop224 ed25519 | Actual Points:
Parent ID: #21888 | Points:
Reviewer: | Sponsor: SponsorR-can
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Description changed by asn:
Old description:
> We should validate ed25519 pubkeys used in prop224 (like the blinded key)
> to make sure there is no torsion components. In the case of the blinded
> key, this ensures that there are no equivalent keys due to the torsion
> component.
>
> Please see:
> https://lists.torproject.org/pipermail/tor-dev/2017-April/012164.html
> https://lists.torproject.org/pipermail/tor-dev/2017-April/012213.html
New description:
We should validate ed25519 pubkeys used in prop224 (like the blinded key)
to make sure there is no torsion components. In the case of the onion
address ed25519, this ensures that there are no equivalent onion addresses
due to the torsion component.
Please see:
https://lists.torproject.org/pipermail/tor-dev/2017-April/012164.html
https://lists.torproject.org/pipermail/tor-dev/2017-April/012213.html
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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22006#comment:1>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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