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
39 select X509_CERTIFICATE_PARSER
41 This option enables digital signature verification using
44 config INTEGRITY_TRUSTED_KEYRING
45 bool "Require all keys on the integrity keyrings be signed"
46 depends on SYSTEM_TRUSTED_KEYRING
47 depends on INTEGRITY_ASYMMETRIC_KEYS
50 This option requires that all keys added to the .ima and
51 .evm keyrings be signed by a key on the system trusted
54 config INTEGRITY_PLATFORM_KEYRING
55 bool "Provide keyring for platform/firmware trusted keys"
56 depends on INTEGRITY_ASYMMETRIC_KEYS
57 depends on SYSTEM_BLACKLIST_KEYRING
59 Provide a separate, distinct keyring for platform trusted keys, which
60 the kernel automatically populates during initialization from values
61 provided by the platform for verifying the kexec'ed kerned image
62 and, possibly, the initramfs signature.
65 depends on INTEGRITY_PLATFORM_KEYRING
70 depends on INTEGRITY_PLATFORM_KEYRING
74 config INTEGRITY_AUDIT
75 bool "Enables integrity auditing support "
79 In addition to enabling integrity auditing support, this
80 option adds a kernel parameter 'integrity_audit', which
81 controls the level of integrity auditing messages.
82 0 - basic integrity auditing messages (default)
83 1 - additional integrity auditing messages
85 Additional informational integrity auditing messages would
86 be enabled by specifying 'integrity_audit=1' on the kernel
89 source "security/integrity/ima/Kconfig"
90 source "security/integrity/evm/Kconfig"