diff mbox series

[3/3] dm-crypt: Document integrity_key_size option.

Message ID 20250129125857.252448-3-gmazyland@gmail.com (mailing list archive)
State Accepted, archived
Delegated to: Mikulas Patocka
Headers show
Series [1/3] dm-verity: Document restart_on_error and panic_on_error options | expand

Commit Message

Milan Broz Jan. 29, 2025, 12:58 p.m. UTC 
This patch adds documentation for new option introduced in commit
4441686b24a1 ("dm-crypt: Allow to specify the integrity key size as option").

Signed-off-by: Milan Broz <gmazyland@gmail.com>
---
 Documentation/admin-guide/device-mapper/dm-crypt.rst | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/admin-guide/device-mapper/dm-crypt.rst b/Documentation/admin-guide/device-mapper/dm-crypt.rst
index 9f8139ff97d6..4467f6d4b632 100644
--- a/Documentation/admin-guide/device-mapper/dm-crypt.rst
+++ b/Documentation/admin-guide/device-mapper/dm-crypt.rst
@@ -146,6 +146,11 @@  integrity:<bytes>:<type>
     integrity for the encrypted device. The additional space is then
     used for storing authentication tag (and persistent IV if needed).
 
+integrity_key_size:<bytes>
+    Optionally set the integrity key size if it differs from the digest size.
+    It allows the use of wrapped key algorithms where the key size is
+    independent of the cryptographic key size.
+
 sector_size:<bytes>
     Use <bytes> as the encryption unit instead of 512 bytes sectors.
     This option can be in range 512 - 4096 bytes and must be power of two.