doc: ReSTify keys-ecryptfs.txt

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

Cc: David Howells <dhowells@redhat.com>
Cc: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Kees Cook 2017-05-13 04:51:51 -07:00 committed by Jonathan Corbet
parent b68101a1e8
commit 09f5412cc5
3 changed files with 13 additions and 9 deletions

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@ -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

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@ -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

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@ -6,3 +6,4 @@ Kernel Keys
:maxdepth: 1
core
ecryptfs