TPM_GETQUOTE(8)

📦 version 1.0.4, in debian bookworm, debian trixie, nixos 26.05, nixpkgs unstable, ubuntu jammy, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

💖 GET TPM QUOTE(8) — bestie edition 💖

okay so this is the tpm_getquote page from section 8 of the manual, and no cap, it's a little one but it's doing a lot. grab a snack, we're learning TPM quotes 🫶

✨ NAME ✨

tpm_getquote — it hands you back the signature that a TPM quote produced. that's the whole job. iconic behavior honestly 💅

🌸 SYNOPSIS 🌸

tpm_getquote [-r HOST] [-p PCR-VALUES-FILE] [-hv] UUID-FILE NONCE-FILE
QUOTE-FILE PCRS

yes it's a long line bestie, just breathe. four files/args at the end, four little flags up front. we'll walk through every single one 👑

🦋 DESCRIPTION 🦋

so the program returns the signature produced by a TPM quote, and it drops that signature into the file QUOTE-FILE. that's the main character of this whole operation 💖

PCRS is a sequence of integers — a whole little list of them — and those specify the Platform Configuration Registers that were used to produce the signature.

the key used for the operation? that's the one registered under the UUID in UUID-FILE 🔑

and the nonce being used? that comes from the file NONCE-FILE ✨

so to recap the squad: UUID-FILE brings the key, NONCE-FILE brings the nonce, PCRS says which registers, and QUOTE-FILE is where the signature lands. teamwork makes the dream work fr fr 🌈

💅 OPTIONS 💅

  • -r HOST — perform the operation on a remote HOST. yes queen, do it from a distance 🧚
  • -p PCR-VALUE-FILE — store the current list of PCR values in PCR-VALUE-FILE. like a little save file for your PCRs 🎀
  • -h — display command usage info. the "help me bestie" flag 🙈
  • -v — display command version info. the "which version are we on" flag ⭐

👑 SEE ALSO 👑

go read those too, the lore runs deep, iykyk 📚

lowkey a tiny page but every single flag matters. don't skip them, bestie 💀

and that's a wrap on the GET TPM QUOTE(8) glow-up! this one's from Oct 2010 — yes, a whole vintage — and it lives in the GET TPM QUOTE(8) corner of the manual. slay, bye 💖✨

📦 where this page comes from