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[tor-relays] Re: Post-Quantum Cryptography in Tor's TLS Layer: Help needed!
- To: Alexander Hansen Færøy via tor-relays <tor-relays@xxxxxxxxxxxxxxxxxxxx>
- Subject: [tor-relays] Re: Post-Quantum Cryptography in Tor's TLS Layer: Help needed!
- From: Felix via tor-relays <tor-relays@xxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 19 Jun 2026 16:04:23 +0200
- Cc: Felix <zwiebel@xxxxxxxxxxxxxxxx>
- In-reply-to: <334ce3e3-1146-49c0-985c-00e480b7b8ac@torproject.org>
- List-id: "support and questions about running Tor relays (exit, non-exit, bridge)" <tor-relays.lists.torproject.org>
- References: <02da1ac4-c6ea-4163-9ab8-361ecf26a1c2@torproject.org> <20260301111234.00006133@quantentunnel.de> <81f80313-758d-4617-bd96-8b68c8ebf634@torproject.org> <334ce3e3-1146-49c0-985c-00e480b7b8ac@torproject.org>
- Reply-to: "support and questions about running Tor relays (exit, non-exit, bridge)" <tor-relays@xxxxxxxxxxxxxxxxxxxx>
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Hi Alex
> Key Exchange Groups:
> - `X25519`: 4827.
> - `X25519MLKEM768`: 4326.
> - `secp256r1`: 554.
> Directory Authorities:
> - 10 out of 10 were reachable.
> - `TLS13_AES_256_GCM_SHA384` was used by all 10.
> - `X25519` was used by 5, and `X25519MLKEM768` was used by 5.
> 4326 / 9707 * 100 = 44.57% of the relays support PQC handshakes right
> now.
> If your relay does not yet support the `X25519MLKEM768` group, it
> would be really lovely if you could look into upgrading your TLS
> library (OpenSSL >= 3.5.0 and LibreSSL >= 4.3.0) used by your relay.
The relays are
since
May 08 22:38:42.281 [notice] Tor 0.4.9.8 running on FreeBSD
with ... OpenSSL LibreSSL 4.3.1, ...
since
Jun 02 19:17:27.354 [notice] Tor 0.4.9.9 running on FreeBSD
with ... OpenSSL LibreSSL 4.3.1, ...
but are still listed without PQC.
What should log notice state for a correct PQC key exchange? Or am I
missing something?
Cheers!
Attachment:
pgp4Sd0Y9X_Sz.pgp
Description: Digitale Signatur von OpenPGP
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