1f381c272SMimi Zohar# 2f381c272SMimi Zoharconfig INTEGRITY 37ef84e65SDmitry Kasatkin bool "Integrity subsystem" 47ef84e65SDmitry Kasatkin depends on SECURITY 57ef84e65SDmitry Kasatkin default y 67ef84e65SDmitry Kasatkin help 77ef84e65SDmitry Kasatkin This option enables the integrity subsystem, which is comprised 87ef84e65SDmitry Kasatkin of a number of different components including the Integrity 97ef84e65SDmitry Kasatkin Measurement Architecture (IMA), Extended Verification Module 107ef84e65SDmitry Kasatkin (EVM), IMA-appraisal extension, digital signature verification 117ef84e65SDmitry Kasatkin extension and audit measurement log support. 127ef84e65SDmitry Kasatkin 137ef84e65SDmitry Kasatkin Each of these components can be enabled/disabled separately. 147ef84e65SDmitry Kasatkin Refer to the individual components for additional details. 157ef84e65SDmitry Kasatkin 167ef84e65SDmitry Kasatkinif INTEGRITY 17f381c272SMimi Zohar 18f1be242cSDmitry Kasatkinconfig INTEGRITY_SIGNATURE 196341e62bSChristoph Jaeger bool "Digital signature verification using multiple keyrings" 207ef84e65SDmitry Kasatkin depends on KEYS 218607c501SDmitry Kasatkin default n 225e8898e9SDmitry Kasatkin select SIGNATURE 238607c501SDmitry Kasatkin help 248607c501SDmitry Kasatkin This option enables digital signature verification support 258607c501SDmitry Kasatkin using multiple keyrings. It defines separate keyrings for each 268607c501SDmitry Kasatkin of the different use cases - evm, ima, and modules. 278607c501SDmitry Kasatkin Different keyrings improves search performance, but also allow 288607c501SDmitry Kasatkin to "lock" certain keyring to prevent adding new keys. 298607c501SDmitry Kasatkin This is useful for evm and module keyrings, when keys are 308607c501SDmitry Kasatkin usually only added from initramfs. 318607c501SDmitry Kasatkin 321ae8f41cSDmitry Kasatkinconfig INTEGRITY_ASYMMETRIC_KEYS 336341e62bSChristoph Jaeger bool "Enable asymmetric keys support" 341ae8f41cSDmitry Kasatkin depends on INTEGRITY_SIGNATURE 351ae8f41cSDmitry Kasatkin default n 361ae8f41cSDmitry Kasatkin select ASYMMETRIC_KEY_TYPE 371ae8f41cSDmitry Kasatkin select ASYMMETRIC_PUBLIC_KEY_SUBTYPE 381ae8f41cSDmitry Kasatkin select PUBLIC_KEY_ALGO_RSA 39eb5798f2STadeusz Struk select CRYPTO_RSA 401ae8f41cSDmitry Kasatkin select X509_CERTIFICATE_PARSER 411ae8f41cSDmitry Kasatkin help 421ae8f41cSDmitry Kasatkin This option enables digital signature verification using 431ae8f41cSDmitry Kasatkin asymmetric keys. 441ae8f41cSDmitry Kasatkin 45f4dc3778SDmitry Kasatkinconfig INTEGRITY_TRUSTED_KEYRING 46f4dc3778SDmitry Kasatkin bool "Require all keys on the integrity keyrings be signed" 47f4dc3778SDmitry Kasatkin depends on SYSTEM_TRUSTED_KEYRING 48f4dc3778SDmitry Kasatkin depends on INTEGRITY_ASYMMETRIC_KEYS 49f4dc3778SDmitry Kasatkin default y 50f4dc3778SDmitry Kasatkin help 51f4dc3778SDmitry Kasatkin This option requires that all keys added to the .ima and 52f4dc3778SDmitry Kasatkin .evm keyrings be signed by a key on the system trusted 53f4dc3778SDmitry Kasatkin keyring. 54f4dc3778SDmitry Kasatkin 55d726d8d7SMimi Zoharconfig INTEGRITY_AUDIT 56d726d8d7SMimi Zohar bool "Enables integrity auditing support " 577ef84e65SDmitry Kasatkin depends on AUDIT 58d726d8d7SMimi Zohar default y 59d726d8d7SMimi Zohar help 60d726d8d7SMimi Zohar In addition to enabling integrity auditing support, this 61d726d8d7SMimi Zohar option adds a kernel parameter 'integrity_audit', which 62d726d8d7SMimi Zohar controls the level of integrity auditing messages. 63d726d8d7SMimi Zohar 0 - basic integrity auditing messages (default) 64d726d8d7SMimi Zohar 1 - additional integrity auditing messages 65d726d8d7SMimi Zohar 66d726d8d7SMimi Zohar Additional informational integrity auditing messages would 67d726d8d7SMimi Zohar be enabled by specifying 'integrity_audit=1' on the kernel 68d726d8d7SMimi Zohar command line. 69d726d8d7SMimi Zohar 70f381c272SMimi Zoharsource security/integrity/ima/Kconfig 7166dbc325SMimi Zoharsource security/integrity/evm/Kconfig 727ef84e65SDmitry Kasatkin 737ef84e65SDmitry Kasatkinendif # if INTEGRITY 74