Re: [babel] [Babel-users] key rotation take #2
Juliusz Chroboczek <jch@irif.fr> Fri, 14 December 2018 16:51 UTC
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Date: Fri, 14 Dec 2018 17:51:31 +0100
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From: Juliusz Chroboczek <jch@irif.fr>
To: Dave Taht <dave@taht.net>
Cc: babel@ietf.org, babel-users@lists.alioth.debian.org
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Archived-At: <https://mailarchive.ietf.org/arch/msg/babel/MXawIDmstY70zLXQM4cs7SCDY_k>
Subject: Re: [babel] [Babel-users] key rotation take #2
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> This is the present babel conf file format: > key id key1 type sha1 value deadbeefdeadbeefdeadbeefdeadbeefdeadbeef > key id key2 type sha1 value dea2f0d01a57b0071057a11da7adeadbeeffffff > interface enp7s0 unicast false hmac key1 > interface wg1 hmac key2 Right. It currently cannot be updated dynamically, but the plan is that it will at some point before HMAC get merged into mainline. > so we invent a new keyword "serial". > a key rollover is initiated by adding a new key with the same name and a > larger serial number than the old one. I don't understand what problem you're trying to solve. You're happily HMACing your packets: key id key1 type sha1 value ... interface wlan0 hmac key1 At some point, you decide to start using a new key: key id key2 type sha1 value ... interface wlan0 hmac key1 hmac key2 You deploy the new key on all routers, then you delete the old key: interface wlan0 hmac key2 Why do you need a serial number? -- Juliusz
- [babel] key rotation take #2 Dave Taht
- Re: [babel] [Babel-users] key rotation take #2 Toke Høiland-Jørgensen
- Re: [babel] [Babel-users] key rotation take #2 Dave Taht
- Re: [babel] [Babel-users] key rotation take #2 Toke Høiland-Jørgensen
- Re: [babel] [Babel-users] key rotation take #2 Dave Taht
- Re: [babel] [Babel-users] key rotation take #2 Toke Høiland-Jørgensen
- Re: [babel] [Babel-users] key rotation take #2 Juliusz Chroboczek