[PATCH 15/17] doc: ReSTify keys-ecryptfs.txt

From: Kees Cook
Date: Sat May 13 2017 - 07:53:06 EST


Adjusts for ReST markup and moves under keys security devel index.

Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Tyler Hicks <tyhicks@xxxxxxxxxxxxx>
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
Documentation/security/00-INDEX | 2 --
.../security/{keys-ecryptfs.txt => keys/ecryptfs.rst} | 19 ++++++++++++-------
Documentation/security/keys/index.rst | 1 +
3 files changed, 13 insertions(+), 9 deletions(-)
rename Documentation/security/{keys-ecryptfs.txt => keys/ecryptfs.rst} (91%)

diff --git a/Documentation/security/00-INDEX b/Documentation/security/00-INDEX
index a840095bb11c..08a6e7a195ef 100644
--- a/Documentation/security/00-INDEX
+++ b/Documentation/security/00-INDEX
@@ -1,7 +1,5 @@
00-INDEX
- this file.
-keys-ecryptfs.txt
- - description of the encryption keys for the ecryptfs filesystem.
keys-request-key.txt
- description of the kernel key request service.
keys-trusted-encrypted.txt
diff --git a/Documentation/security/keys-ecryptfs.txt b/Documentation/security/keys/ecryptfs.rst
similarity index 91%
rename from Documentation/security/keys-ecryptfs.txt
rename to Documentation/security/keys/ecryptfs.rst
index c3bbeba63562..4920f3a8ea75 100644
--- a/Documentation/security/keys-ecryptfs.txt
+++ b/Documentation/security/keys/ecryptfs.rst
@@ -1,4 +1,6 @@
- Encrypted keys for the eCryptfs filesystem
+==========================================
+Encrypted keys for the eCryptfs filesystem
+==========================================

ECryptfs is a stacked filesystem which transparently encrypts and decrypts each
file using a randomly generated File Encryption Key (FEK).
@@ -35,20 +37,23 @@ controlled environment. Another advantage is that the key is not exposed to
threats of malicious software, because it is available in clear form only at
kernel level.

-Usage:
+Usage::
+
keyctl add encrypted name "new ecryptfs key-type:master-key-name keylen" ring
keyctl add encrypted name "load hex_blob" ring
keyctl update keyid "update key-type:master-key-name"

-name:= '<16 hexadecimal characters>'
-key-type:= 'trusted' | 'user'
-keylen:= 64
+Where::
+
+ name:= '<16 hexadecimal characters>'
+ key-type:= 'trusted' | 'user'
+ keylen:= 64


Example of encrypted key usage with the eCryptfs filesystem:

Create an encrypted key "1000100010001000" of length 64 bytes with format
-'ecryptfs' and save it using a previously loaded user key "test":
+'ecryptfs' and save it using a previously loaded user key "test"::

$ keyctl add encrypted 1000100010001000 "new ecryptfs user:test 64" @u
19184530
@@ -62,7 +67,7 @@ Create an encrypted key "1000100010001000" of length 64 bytes with format
$ keyctl pipe 19184530 > ecryptfs.blob

Mount an eCryptfs filesystem using the created encrypted key "1000100010001000"
-into the '/secret' directory:
+into the '/secret' directory::

$ mount -i -t ecryptfs -oecryptfs_sig=1000100010001000,\
ecryptfs_cipher=aes,ecryptfs_key_bytes=32 /secret /secret
diff --git a/Documentation/security/keys/index.rst b/Documentation/security/keys/index.rst
index ddfe7e4726e6..d34f663354bb 100644
--- a/Documentation/security/keys/index.rst
+++ b/Documentation/security/keys/index.rst
@@ -6,3 +6,4 @@ Kernel Keys
:maxdepth: 1

core
+ ecryptfs
--
2.7.4