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NixOS + TPMs

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28 Dec 2025
@psyclyx:matrix.orgpsyclyx set a profile picture.16:20:33
30 Dec 2025
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3 Jan 2026
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4 Jan 2026
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11 Jan 2026
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12 Jan 2026
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16 Jul 2021
@andi:kack.itandi- changed the history visibility to "world_readable" from "shared".12:07:40
@spacesbot:nixos.devspacesbot - keeps a log of public NixOS channels joined the room.12:09:23
@grahamc:nixos.org@grahamc:nixos.org^ recording material I looked at12:09:26
@manveru:matrix.orgmanveru joined the room.12:09:46
@andi:kack.itandi-I've found this https://kernsec.org/wiki/index.php/Linux_Kernel_Integrity12:09:54
@andi:kack.itandi-had a bunch of (somewhat dated) links12:10:00
@grahamc:nixos.org@grahamc:nixos.orgI'm still waiting for someone to confirm what I believe to be a fundamentally true security property https://developers.tpm.dev/posts/1557577412:11:22
@grahamc:nixos.org@grahamc:nixos.orgjust as many bots as people in here12:11:35
@andi:kack.itandi-I am still a bit confused by the requirement of different secrets to decrypt one secret. This is probably because TPMs support different trust roots(?) and each of the root has to match the secrets you want to decrypt?12:12:51
@grahamc:nixos.org@grahamc:nixos.orgyeah12:13:00
@andi:kack.itandi-So, why that take ownership stuff then?12:13:12
@grahamc:nixos.org@grahamc:nixos.orgyou can create a hierarchy of keys which reveal different amounts of data12:13:20
@andi:kack.itandi-Shouldn't I rather specify the root somehow?12:13:21
@grahamc:nixos.org@grahamc:nixos.orgah12:13:35
@andi:kack.itandi-and the root is also the part that takes the two passwords?12:13:37
@grahamc:nixos.org@grahamc:nixos.orgah, no12:13:43
@grahamc:nixos.org@grahamc:nixos.orgheh12:13:45

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