Re: Ext4 data structures integrity
From: Kasatkin, Dmitry <hidden>
Date: 2011-09-29 13:33:55
From: Kasatkin, Dmitry <hidden>
Date: 2011-09-29 13:33:55
quoted
There is work currently being done to add checksums for detecting filesystem corruption (see list archive). However, if the attacker can binary edit the underlying disk device then they can also edit the checksums (crc32c) at the same time. The only secure way to handle this would be a crypto checksum with a secret key.
Can you please give me some links to it???? Thanks, Dmitry