--hash argument ignored when creating a luks2 volume

[Jabb]

Command used to create a luks2 volume:
cryptsetup luksFormat /dev/loop0 --type luks2 --hash sha512
Output of luksDump shows pbkdf2 is still using sha256
The problem has been resolved in version 2.2.0 cryptsetup:
https://gitlab.com/cryptsetup/cryptsetup/issues/484

[root@mtz ink]# cryptsetup luksDump /dev/loop0
LUKS header information
Version: 2
Epoch: 3
Metadata area: 12288 bytes
UUID: 19642715-0c41-4611-9e1f-f5e3c19888b1
Label: (no label)
Subsystem: (no subsystem)
Flags: (no flags)

Data segments:
  0: crypt
        offset: 4194304 [bytes]
        length: (whole device)
        cipher: aes-xts-plain64
        sector: 512 [bytes]

Keyslots:
  0: luks2
        Key: 256 bits
        Priority: normal
        Cipher: aes-xts-plain64
        PBKDF: argon2i
        Time cost: 4
        Memory: 872450
        Threads: 4
        Salt: 73 63 6a 10 5a a8 48 a6 f8 5a fa 2b 63 52 8e d0
                    10 64 a1 0f 3a 58 2b c6 59 5a 07 c7 36 77 b5 3c
        AF stripes: 4000
        Area offset:32768 [bytes]
        Area length:131072 [bytes]
        Digest ID: 0
Tokens:
Digests:
  0: pbkdf2
        Hash: sha256
        Iterations: 94705
        Salt: 77 ef 94 fa bb ae 54 b6 59 1e b8 75 c0 c1 c0 f9
                    31 ae 3b 46 95 22 cb 11 0f ac 0a 14 52 22 d3 98
        Digest: b1 6c 4d 09 d6 b2 92 d9 64 83 37 23 3f e0 5f c0
                    81 73 45 ab 34 7f 7e d3 39 a9 a9 36 4f 0f 54 ec
[root@mtz ink]#

[Manfred Hampl (m-hampl)]

required change seems to be https://gitlab.com/cryptsetup/cryptsetup/commit/cdb4816fbbc814a856006b0e9d40ad435019eedf

[Jabb (jabbo68)]

That's right, but I am asking you to update the Ubuntu 18.04 package because the current version of cryptsetup is too low (2.0.2 and the bug removed in 2.2.0)

[Jabb (jabbo68)]

In addition, I see a link to another bug report:
https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/1843181