systemd-cryptenroll

Date: 2023-04-18 04:00 am (UTC)
From: (Anonymous)

I use systemd-cryptenroll for TPM–based automatic unlock. I’m sure doing so is a bad idea for many reasons, but regardless, I noticed the LUKS keyslot that systemd-cryptenroll creates is hardcoded to pbkdf2.

Indeed, looking at the source, it appears this decision was made because the author “found the Wikipedia entry relevant”:

  • https://github.com/systemd/systemd/blob/25d9c6cdaf82d3f627db92b69f3be3e2a68e06fa/src/cryptenroll/cryptenroll-tpm2.c#L182
  • https://github.com/systemd/systemd/blob/25d9c6cdaf82d3f627db92b69f3be3e2a68e06fa/src/shared/tpm2-util.c#L3068
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Matthew Garrett

About Matthew

Power management, mobile and firmware developer on Linux. Security developer at nvidia. Ex-biologist. Content here should not be interpreted as the opinion of my employer. Also on Mastodon and Bluesky.

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