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@xxxxxxxxx>
---
Documentation/admin-guide/device-mapper/dm-crypt.rst | 5 +++++
1 file changed, 5 insertions(+)
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.
--
2.47.2
