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NixOS + TPMs

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24 Jan 2022
@zhaofeng:zhaofeng.liZhaofeng LiFound it: https://wiki.archlinux.org/title/Unified_Extensible_Firmware_Interface/Secure_Boot#Dual_booting_with_other_operating_systems22:42:16
@colemickens:matrix.org@colemickens:matrix.orgHrmph, now I feel like I wasted my time with the shim, but this would require figuring out signing :s22:42:19
@zhaofeng:zhaofeng.liZhaofeng LiIt's actually pretty simple after you generate all the keys and enroll them in your BIOS22:43:13
@zhaofeng:zhaofeng.liZhaofeng LiEverything else can be done from the OS22:43:30
@colemickens:matrix.org@colemickens:matrix.orgI just assume people are signing outside the store or doing some sandboxing trick to get to the private key or something. I've always avoided that, but maybe it's not a huge deal.22:44:10
@zhaofeng:zhaofeng.liZhaofeng Li
In reply to @zhaofeng:zhaofeng.li
You can get actual Secure Boot signing working with https://github.com/frogamic/nix-machines/tree/main/modules/systemd-secure-boot
The module here automatically creates a unified kernel image (kernel + initrd) for each generation and signs them
22:45:10
@zhaofeng:zhaofeng.liZhaofeng LiAnd the end-user experience is seamless22:45:23
@colemickens:matrix.org@colemickens:matrix.orgOh, right, it just takes a path to the key.22:45:40
@colemickens:matrix.org@colemickens:matrix.orgHuh, why was I over thinking this.22:45:46
@colemickens:matrix.org@colemickens:matrix.orgNeato.22:45:49
@colemickens:matrix.org@colemickens:matrix.org Thanks a bunch Zhaofeng Li , I'll have to spend another weekend day trying to do this the right way then! 22:47:21
31 Jan 2022
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2 Feb 2022
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3 Feb 2022
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4 Feb 2022
@mic92:nixos.dev@mic92:nixos.devis this any good? https://github.com/whooo/tpm2-ssh-agent 14:08:18
15 Feb 2022
@stigo:matrix.org@stigo:matrix.org
In reply to @mic92:nixos.dev
is this any good? https://github.com/whooo/tpm2-ssh-agent
I've been using gpg with tpm for ssh for a while now, quite happy with it. Unable to change passphrases for tpm backed keys tho.
16:02:28

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