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-rw-r--r--Documentation/security/keys-trusted-encrypted.txt6
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/security/keys-trusted-encrypted.txt b/Documentation/security/keys-trusted-encrypted.txt
index 0afcb5023c75..5f50ccabfc8a 100644
--- a/Documentation/security/keys-trusted-encrypted.txt
+++ b/Documentation/security/keys-trusted-encrypted.txt
@@ -63,7 +63,7 @@ Usage:
keyctl add encrypted name "load hex_blob" ring
keyctl update keyid "update key-type:master-key-name"
-format:= 'default'
+format:= 'default | ecryptfs'
key-type:= 'trusted' | 'user'
@@ -154,4 +154,6 @@ Load an encrypted key "evm" from saved blob:
24717c64 5972dcb82ab2dde83376d82b2e3c09ffc
Other uses for trusted and encrypted keys, such as for disk and file encryption
-are anticipated.
+are anticipated. In particular the new format 'ecryptfs' has been defined in
+in order to use encrypted keys to mount an eCryptfs filesystem. More details
+about the usage can be found in the file 'Documentation/keys-ecryptfs.txt'.