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authorDavid Howells2012-05-11 04:56:56 -0500
committerDavid Howells2012-05-11 04:56:56 -0500
commitf0894940aed13b21f363a411c7ec57358827ad87 (patch)
tree43b1fcfc6e9ff2912943b2b2789559b36e7a192d /security/Kconfig
parent45de6767dc51358a188f75dc4ad9dfddb7fb9480 (diff)
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KEYS: Move the key config into security/keys/Kconfig
Move the key config into security/keys/Kconfig as there are going to be a lot of key-related options. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Mimi Zohar <zohar@us.ibm.com>
Diffstat (limited to 'security/Kconfig')
-rw-r--r--security/Kconfig68
1 files changed, 1 insertions, 67 deletions
diff --git a/security/Kconfig b/security/Kconfig
index ccc61f8006b..e9c6ac724fe 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -4,73 +4,7 @@
4 4
5menu "Security options" 5menu "Security options"
6 6
7config KEYS 7source security/keys/Kconfig
8 bool "Enable access key retention support"
9 help
10 This option provides support for retaining authentication tokens and
11 access keys in the kernel.
12
13 It also includes provision of methods by which such keys might be
14 associated with a process so that network filesystems, encryption
15 support and the like can find them.
16
17 Furthermore, a special type of key is available that acts as keyring:
18 a searchable sequence of keys. Each process is equipped with access
19 to five standard keyrings: UID-specific, GID-specific, session,
20 process and thread.
21
22 If you are unsure as to whether this is required, answer N.
23
24config TRUSTED_KEYS
25 tristate "TRUSTED KEYS"
26 depends on KEYS && TCG_TPM
27 select CRYPTO
28 select CRYPTO_HMAC
29 select CRYPTO_SHA1
30 help
31 This option provides support for creating, sealing, and unsealing
32 keys in the kernel. Trusted keys are random number symmetric keys,
33 generated and RSA-sealed by the TPM. The TPM only unseals the keys,
34 if the boot PCRs and other criteria match. Userspace will only ever
35 see encrypted blobs.
36
37 If you are unsure as to whether this is required, answer N.
38
39config ENCRYPTED_KEYS
40 tristate "ENCRYPTED KEYS"
41 depends on KEYS
42 select CRYPTO
43 select CRYPTO_HMAC
44 select CRYPTO_AES
45 select CRYPTO_CBC
46 select CRYPTO_SHA256
47 select CRYPTO_RNG
48 help
49 This option provides support for create/encrypting/decrypting keys
50 in the kernel. Encrypted keys are kernel generated random numbers,
51 which are encrypted/decrypted with a 'master' symmetric key. The
52 'master' key can be either a trusted-key or user-key type.
53 Userspace only ever sees/stores encrypted blobs.
54
55 If you are unsure as to whether this is required, answer N.
56
57config KEYS_DEBUG_PROC_KEYS
58 bool "Enable the /proc/keys file by which keys may be viewed"
59 depends on KEYS
60 help
61 This option turns on support for the /proc/keys file - through which
62 can be listed all the keys on the system that are viewable by the
63 reading process.
64
65 The only keys included in the list are those that grant View
66 permission to the reading process whether or not it possesses them.
67 Note that LSM security checks are still performed, and may further
68 filter out keys that the current process is not authorised to view.
69
70 Only key attributes are listed here; key payloads are not included in
71 the resulting table.
72
73 If you are unsure as to whether this is required, answer N.
74 8
75config SECURITY_DMESG_RESTRICT 9config SECURITY_DMESG_RESTRICT
76 bool "Restrict unprivileged access to the kernel syslog" 10 bool "Restrict unprivileged access to the kernel syslog"