3 bool "Integrity subsystem"
7 This option enables the integrity subsystem, which is comprised
8 of a number of different components including the Integrity
9 Measurement Architecture (IMA), Extended Verification Module
10 (EVM), IMA-appraisal extension, digital signature verification
11 extension and audit measurement log support.
13 Each of these components can be enabled/disabled separately.
14 Refer to the individual components for additional details.
18 config INTEGRITY_SIGNATURE
19 bool "Digital signature verification using multiple keyrings"
24 This option enables digital signature verification support
25 using multiple keyrings. It defines separate keyrings for each
26 of the different use cases - evm, ima, and modules.
27 Different keyrings improves search performance, but also allow
28 to "lock" certain keyring to prevent adding new keys.
29 This is useful for evm and module keyrings, when keys are
30 usually only added from initramfs.
32 config INTEGRITY_ASYMMETRIC_KEYS
33 bool "Enable asymmetric keys support"
34 depends on INTEGRITY_SIGNATURE
36 select ASYMMETRIC_KEY_TYPE
37 select ASYMMETRIC_PUBLIC_KEY_SUBTYPE
38 select PUBLIC_KEY_ALGO_RSA
40 select X509_CERTIFICATE_PARSER
42 This option enables digital signature verification using
45 config INTEGRITY_TRUSTED_KEYRING
46 bool "Require all keys on the integrity keyrings be signed"
47 depends on SYSTEM_TRUSTED_KEYRING
48 depends on INTEGRITY_ASYMMETRIC_KEYS
51 This option requires that all keys added to the .ima and
52 .evm keyrings be signed by a key on the system trusted
55 config INTEGRITY_AUDIT
56 bool "Enables integrity auditing support "
60 In addition to enabling integrity auditing support, this
61 option adds a kernel parameter 'integrity_audit', which
62 controls the level of integrity auditing messages.
63 0 - basic integrity auditing messages (default)
64 1 - additional integrity auditing messages
66 Additional informational integrity auditing messages would
67 be enabled by specifying 'integrity_audit=1' on the kernel
70 source security/integrity/ima/Kconfig
71 source security/integrity/evm/Kconfig