The original patches extended the secure boot signature chain of trust to IMA-appraisal, by allowing only certificates signed by a 'trusted' key on the system_trusted_keyring to be added to the IMA keyring.
Instead of allowing public keys, with certificates signed by any key on the system trusted keyring, to be added to a trusted keyring, the last patch in this patch set further restricts the certificates to those signed by a particular key on the system keyring. (This is a total rewrite of the previous version.) All comments have been addressed aside from the issue of requiring procfs for loading a key on the ima keyring. Mimi Mimi Zohar (4): KEYS: special dot prefixed keyring name bug fix KEYS: verify a certificate is signed by a 'trusted' key ima: define '.ima' as a builtin 'trusted' keyring KEYS: define an owner trusted keyring Documentation/kernel-parameters.txt | 5 ++ crypto/asymmetric_keys/x509_public_key.c | 86 +++++++++++++++++++++++++++++++- include/keys/owner_keyring.h | 27 ++++++++++ include/keys/system_keyring.h | 10 +++- init/Kconfig | 10 ++++ kernel/Makefile | 1 + kernel/owner_keyring.c | 85 +++++++++++++++++++++++++++++++ security/integrity/digsig.c | 26 ++++++++++ security/integrity/ima/Kconfig | 8 +++ security/integrity/ima/ima_main.c | 12 ++++- security/integrity/integrity.h | 5 ++ security/keys/keyctl.c | 6 ++- 12 files changed, 275 insertions(+), 6 deletions(-) create mode 100644 include/keys/owner_keyring.h create mode 100644 kernel/owner_keyring.c -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
