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Linux Kernel Support Revived For Hibernation Encryption & Authentication

Submitted by Roy Schestowitz on Saturday 5th of January 2019 01:44:49 AM Filed under
Linux

The kernel work has been revived for supporting encryption and authentication of hibernation snapshot images for better security.

Last summer an Intel developer posted patches supporting in-kernel hibernation encryption so that the memory pages dumped to disk during the hibernate process could be secured and verified on resume. We hadn't seen anything from that patch series in the months since until SUSE's Lee Chun-Yi has sent out a revised version of this work for encryption/authentication of hibernation images.

The goal of this work remains to ensure that any snapshot images were not modified while on disk. The authentication can be done using a TPM's trusted key or a user-defined key.

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Also: FBDEV Is Still Alive In 2019, Picking Up A Few Minor Improvements In Linux 4.21

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