TPM_UPDATEPCRHASH(8)

💖 NAME 💖

tpm_updatepcrhash — bestie, this is the glow-up button for your PCR composite hash ✨

🦋 SYNOPSIS 🦋

tpm_updatepcrhash [-hv] OLD-HASH-FILE PCR-VALUE-FILE NEW-HASH-FILE

🌸 DESCRIPTION 🌸

okay so picture this: you've got a PCR composite hash sitting in OLD-HASH-FILE, and it's lowkey due for a refresh. This program takes that file, updates the composite hash inside it, and drops the glow-up version into NEW-HASH-FILE. that's it, that's the whole vibe 💅

The new composite hash gets computed from the data living in PCR-VALUE-FILE, which is just a list of PCR index=value pairs. no cap. and the format of that file? it's the exact same as the PCR value file generated by tpm_getpcrhash — so if you've already met one of those, you've met them all, they're literally twins 🫶

• -h — shows you the command usage info. the little "hey here's how to use me" moment 🙈
• -v — shows you the command version info. the "which era of me are you running" moment 👑

fr fr, three file arguments, in that order, every time. no shortcuts, no guessing, we're not doing chaos energy here.

👑 SEE ALSO 👑

• tpm_quote_tools(8)
• tpm_mkaik(8)
• tpm_getpcrhash(8)
• tpm_getquote(8)

go read those too, they're iconic, they're the whole friend group 🌈

k that's the page!! this one came from the <strong>VERIFY TPM QUOTE(8)</strong> manual, dated <strong>Oct 2010</strong> — yes she's an elder but she still ate, and she still serves 💜✨