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Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
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Marc S. Weidner
2025-11-18 15:58:03 +00:00
parent 71fb53d40c
commit 257fa1ba55
1 changed files with 31 additions and 30 deletions
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61
docs/MAN_CISS_ISO_BOOT_CHAIN.md
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@@ -224,38 +224,39 @@ dmsetup table --showkeys CHILD # expect integrity hmac sha512 4096
```mermaid ```mermaid
flowchart TD flowchart TD
subgraph ISO Build Time
direction TD
A["Embed and pin GPG FPR (into ISO & RootFS as needed)"] e00@--> B["Generate ISO-edge sha512sum.txt and .sig"];
B e01@--> C["Build filesystem.squashfs and wrap it into ciss_rootfs.crypt"];
e00@{ animation: fast }
e01@{ animation: fast }
end
subgraph ISO Boot Time subgraph ISO Build Time
direction TD direction TD
C e02@--> D["0024 LUKS2, dm-integrity HMAC-SHA512"]; A["Embed and pin GPG FPR (into ISO & RootFS as needed)"] e00@--> B["Generate ISO-edge sha512sum.txt and .sig"];
D e03@-->|SUCCESSFUL| E["ciss_rootfs.crypt opened"]; B e01@--> C["Build filesystem.squashfs and wrap it into ciss_rootfs.crypt"];
E e04@--> F["Mounting RootFS"]; e00@{ animation: fast }
F e05@--> G["0030 verification of authenticity and integrity via embedded and pinned GPG of ISO edge"]; e01@{ animation: fast }
G e06@-->|SUCCESSFUL| H["ISO edge verified"]; end
H e07@--> I["0042 post-decrypt-attestation of RootFS"];
I e08@-->|SUCCESSFUL| J["RootFS attestation successful"];
e02@{ animation: fast }
e03@{ animation: fast }
e04@{ animation: fast }
e05@{ animation: fast }
e06@{ animation: fast }
e07@{ animation: fast }
e08@{ animation: fast }
end
subgraph ISO Run Time subgraph ISO Boot Time
direction TD direction TD
J e09@--> K{{"CISS.debian.live.builder ISO running"}}; C e02@--> D["0024 LUKS2, dm-integrity HMAC-SHA512"];
X{{"Boot process halted"}}; D e03@-->|SUCCESSFUL| E["ciss_rootfs.crypt opened"];
e09@{ animation: fast } E e04@--> F["Mounting RootFS"];
end F e05@--> G["0030 verification of authenticity and integrity via embedded and pinned GPG of ISO edge"];
G e06@-->|SUCCESSFUL| H["ISO edge verified"];
H e07@--> I["0042 post-decrypt-attestation of RootFS"];
I e08@-->|SUCCESSFUL| J["RootFS attestation successful"];
e02@{ animation: fast }
e03@{ animation: fast }
e04@{ animation: fast }
e05@{ animation: fast }
e06@{ animation: fast }
e07@{ animation: fast }
e08@{ animation: fast }
end
subgraph ISO Run Time
direction TD
J e09@--> K{{"CISS.debian.live.builder ISO running"}};
X{{"Boot process halted"}};
e09@{ animation: fast }
end
D -- FAIL --> X; D -- FAIL --> X;
G -- FAIL --> X; G -- FAIL --> X;