[DNSOP] Re: Light weight encrypted DNS proposal
Peter Thomassen <peter@desec.io> Thu, 15 August 2024 10:14 UTC
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Date: Thu, 15 Aug 2024 12:14:15 +0200
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To: Vint Joseph <vintjoseph871@gmail.com>, dnsop@ietf.org
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From: Peter Thomassen <peter@desec.io>
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Subject: [DNSOP] Re: Light weight encrypted DNS proposal
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Hi Vint, On 8/15/24 00:06, Vint Joseph wrote: > The core idea/synopsis > We plan to implement a system using elliptic curve cryptography. A preshared key, referred to as the public key G^S, is distributed from the dns server to the client. How? Best, Peter > The server retains the private key S and the corresponding public key G^S, while the client receives the public key G^S. When the client needs a DNS response, it generates a key pair consisting of a private key C and a public key G^C. The client then sends a DNS request encrypted with the shared key G^CS and includes its public key G^C in the DNS extension. Upon receiving the public key G^C, the DNS server computes the shared key G^CS using its private key S and the client's public key G^C. These are ephemeral keys, ensuring that each DNS packet has its own session keys. The DNS server responds to the DNS query and sends the DNS response encrypted using G^CS. If the DNS server plans to change the keys, then a public key G^S1 is sent to the client , in the response packet. But these are optimizations which can be > done later. > Thank you and I'm looking forward to your feedback! > > Best regards, > Vineeth > > _______________________________________________ > DNSOP mailing list -- dnsop@ietf.org > To unsubscribe send an email to dnsop-leave@ietf.org -- https://desec.io/
- [DNSOP] Light weight encrypted DNS proposal Vint Joseph
- [DNSOP] Re: Light weight encrypted DNS proposal Vladimír Čunát
- [DNSOP] Re: Light weight encrypted DNS proposal Peter Thomassen
- [DNSOP] Re: Light weight encrypted DNS proposal Martine Sophie Lenders
- [DNSOP] Re: Light weight encrypted DNS proposal Joe Abley
- [DNSOP] Re: Light weight encrypted DNS proposal Mukund Sivaraman
- [DNSOP] Re: Light weight encrypted DNS proposal libor.peltan