diff options
author | David Howells <dhowells@redhat.com> | 2012-05-11 11:56:56 +0200 |
---|---|---|
committer | David Howells <dhowells@redhat.com> | 2012-05-11 11:56:56 +0200 |
commit | f0894940aed13b21f363a411c7ec57358827ad87 (patch) | |
tree | 43b1fcfc6e9ff2912943b2b2789559b36e7a192d | |
parent | KEYS: Use the compat keyctl() syscall wrapper on Sparc64 for Sparc32 compat (diff) | |
download | linux-f0894940aed13b21f363a411c7ec57358827ad87.tar.xz linux-f0894940aed13b21f363a411c7ec57358827ad87.zip |
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>
-rw-r--r-- | security/Kconfig | 68 | ||||
-rw-r--r-- | security/keys/Kconfig | 71 |
2 files changed, 72 insertions, 67 deletions
diff --git a/security/Kconfig b/security/Kconfig index ccc61f8006b2..e9c6ac724fef 100644 --- a/security/Kconfig +++ b/security/Kconfig @@ -4,73 +4,7 @@ menu "Security options" -config KEYS - bool "Enable access key retention support" - help - This option provides support for retaining authentication tokens and - access keys in the kernel. - - It also includes provision of methods by which such keys might be - associated with a process so that network filesystems, encryption - support and the like can find them. - - Furthermore, a special type of key is available that acts as keyring: - a searchable sequence of keys. Each process is equipped with access - to five standard keyrings: UID-specific, GID-specific, session, - process and thread. - - If you are unsure as to whether this is required, answer N. - -config TRUSTED_KEYS - tristate "TRUSTED KEYS" - depends on KEYS && TCG_TPM - select CRYPTO - select CRYPTO_HMAC - select CRYPTO_SHA1 - help - This option provides support for creating, sealing, and unsealing - keys in the kernel. Trusted keys are random number symmetric keys, - generated and RSA-sealed by the TPM. The TPM only unseals the keys, - if the boot PCRs and other criteria match. Userspace will only ever - see encrypted blobs. - - If you are unsure as to whether this is required, answer N. - -config ENCRYPTED_KEYS - tristate "ENCRYPTED KEYS" - depends on KEYS - select CRYPTO - select CRYPTO_HMAC - select CRYPTO_AES - select CRYPTO_CBC - select CRYPTO_SHA256 - select CRYPTO_RNG - help - This option provides support for create/encrypting/decrypting keys - in the kernel. Encrypted keys are kernel generated random numbers, - which are encrypted/decrypted with a 'master' symmetric key. The - 'master' key can be either a trusted-key or user-key type. - Userspace only ever sees/stores encrypted blobs. - - If you are unsure as to whether this is required, answer N. - -config KEYS_DEBUG_PROC_KEYS - bool "Enable the /proc/keys file by which keys may be viewed" - depends on KEYS - help - This option turns on support for the /proc/keys file - through which - can be listed all the keys on the system that are viewable by the - reading process. - - The only keys included in the list are those that grant View - permission to the reading process whether or not it possesses them. - Note that LSM security checks are still performed, and may further - filter out keys that the current process is not authorised to view. - - Only key attributes are listed here; key payloads are not included in - the resulting table. - - If you are unsure as to whether this is required, answer N. +source security/keys/Kconfig config SECURITY_DMESG_RESTRICT bool "Restrict unprivileged access to the kernel syslog" diff --git a/security/keys/Kconfig b/security/keys/Kconfig new file mode 100644 index 000000000000..a90d6d300dbd --- /dev/null +++ b/security/keys/Kconfig @@ -0,0 +1,71 @@ +# +# Key management configuration +# + +config KEYS + bool "Enable access key retention support" + help + This option provides support for retaining authentication tokens and + access keys in the kernel. + + It also includes provision of methods by which such keys might be + associated with a process so that network filesystems, encryption + support and the like can find them. + + Furthermore, a special type of key is available that acts as keyring: + a searchable sequence of keys. Each process is equipped with access + to five standard keyrings: UID-specific, GID-specific, session, + process and thread. + + If you are unsure as to whether this is required, answer N. + +config TRUSTED_KEYS + tristate "TRUSTED KEYS" + depends on KEYS && TCG_TPM + select CRYPTO + select CRYPTO_HMAC + select CRYPTO_SHA1 + help + This option provides support for creating, sealing, and unsealing + keys in the kernel. Trusted keys are random number symmetric keys, + generated and RSA-sealed by the TPM. The TPM only unseals the keys, + if the boot PCRs and other criteria match. Userspace will only ever + see encrypted blobs. + + If you are unsure as to whether this is required, answer N. + +config ENCRYPTED_KEYS + tristate "ENCRYPTED KEYS" + depends on KEYS + select CRYPTO + select CRYPTO_HMAC + select CRYPTO_AES + select CRYPTO_CBC + select CRYPTO_SHA256 + select CRYPTO_RNG + help + This option provides support for create/encrypting/decrypting keys + in the kernel. Encrypted keys are kernel generated random numbers, + which are encrypted/decrypted with a 'master' symmetric key. The + 'master' key can be either a trusted-key or user-key type. + Userspace only ever sees/stores encrypted blobs. + + If you are unsure as to whether this is required, answer N. + +config KEYS_DEBUG_PROC_KEYS + bool "Enable the /proc/keys file by which keys may be viewed" + depends on KEYS + help + This option turns on support for the /proc/keys file - through which + can be listed all the keys on the system that are viewable by the + reading process. + + The only keys included in the list are those that grant View + permission to the reading process whether or not it possesses them. + Note that LSM security checks are still performed, and may further + filter out keys that the current process is not authorised to view. + + Only key attributes are listed here; key payloads are not included in + the resulting table. + + If you are unsure as to whether this is required, answer N. |