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Patrick Schleizer 2022-07-05 10:57:28 -04:00
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@ -393,12 +393,20 @@ executing `systemctl enable hide-hardware-info.service` as root.
Wiping RAM at shutdown to defeat cold boot attacks. Wiping RAM at shutdown to defeat cold boot attacks.
Implemented as `dracut` module `cold-boot-attack-defense`.
Requires `dracut`. In other words, RAM wipe is incompatible with systems Requires `dracut`. In other words, RAM wipe is incompatible with systems
using `initramfs-tools`. To switch to, install dracut: using `initramfs-tools`. To switch to, install dracut:
sudo apt update sudo apt update
sudo apt install --no-install-recommends dracut sudo apt install --no-install-recommends dracut
`dracut` is intentionally not declared as a dependency of `security-misc` to
avoid making all of `security-misc` dependent on `dracut` only for the sake of
the wipe RAM at shutdown feature. Linux distribution such as Kicksecure are
advised to (and Kicksecure is planning to) install `dracut` instead of
`initramfs-tools` by default.
User documentation: User documentation:
https://www.kicksecure.com/wiki/Cold_Boot_Attack_Defense https://www.kicksecure.com/wiki/Cold_Boot_Attack_Defense