docs: dm-integrity: remove reference to ARC4

ARC4 is no longer considered secure, so it shouldn't be used, even as
just an example.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Eric Biggers 2019-12-06 19:59:21 -08:00 committed by Mike Snitzer
parent 694cfe7f31
commit 7fc979f820

View file

@ -144,7 +144,7 @@ journal_crypt:algorithm(:key) (the key is optional)
Encrypt the journal using given algorithm to make sure that the
attacker can't read the journal. You can use a block cipher here
(such as "cbc(aes)") or a stream cipher (for example "chacha20",
"salsa20", "ctr(aes)" or "ecb(arc4)").
"salsa20" or "ctr(aes)").
The journal contains history of last writes to the block device,
an attacker reading the journal could see the last sector nubmers