LUKS full encryption for desktop PCs - a question of sense

[andreas85]

@winnie

Encryption is always superior.

Yes. Except for :

• Speed
• Maintenance
• Fault Tolerance

---

Cryptsetup can't unlock LUKS2 device, for some reason...?!?

I’m trying to create an encrypted partition for my /home which I will later automount. Problem is, cryptsetup is unable to deal with LUKS2, for some reason. Created a key file $ sudo dd if=/dev/urandom of=cr_home_secret.bin bs=1024 count=1 1+0 records in 1+0 records out 1024 bytes (1.0 kB, 1.0 KiB) copied, 7.9413e-05 s, 12.9 MB/s luksFormat existing ext4 partition $ sudo cryptsetup --type luks2 luksFormat /dev/nvme0n1p4 cr_home_secret.bin WARNING: Device /dev/nvme0n1p4 already contains a …

---

Luks makes SSD slow

I have a notebook (Schenker Vision 14) with 1 TB M.2 Samsung 980 PRO | PCIe 4.0 x4 | NVMe. It seems that disk encryption with LUKE makes read/write very slow. I tested with fresh installations to compare it: Manjaro Gnome with LUKE: [image] Manjaro Gnome without LUKE: [image] Is this normal speed lost? Also it seems the fan turns on more often with LUKE, makes sense because CPU has more work, but that much?

---

I messed up my LUKS partition

I believe that I accidentally corrupted my LUKS drive by using TestDisk. It contains very important documents and I’d really appreciate some help to try and recover it. Sun Nov 1 13:20:04 2020 Command line: TestDisk TestDisk 7.1, Data Recovery Utility, July 2019 Christophe GRENIER <grenier@cgsecurity.org> https://www.cgsecurity.org OS: Linux, kernel 5.7.19-2-MANJARO (#1 SMP PREEMPT Fri Aug 28 20:22:12 UTC 2020) x86_64 Compiler: GCC 10.1 ext2fs lib: 1.45.6, ntfs lib: libntfs-3g, reiserfs lib: …

…