[PATCH v2 0/3] KEYS: validate certificate trust with selected owner or builtin key

[Dmitry Kasatkin <d.kasatkin@samsung.com>]

Instead of allowing public keys, with certificates signed by any key on
the system trusted keyring, to be added to a trusted keyring, this patch
set further restricts the certificates to those signed by a particular key
or builtin keys on the system keyring.

This patch defines a new kernel parameter 'keys_ownerid={id: | builtin}'
to use specific key or any builtin key.

Changes to v1:
* key id matching code from asymmetric_type.c is reused in the patch

Thanks,
Dmitry


Dmitry Kasatkin (3):
  KEYS: make key id matching as a dedicated function
  KEYS: validate certificate trust only with selected owner key
  KEYS: validate certificate trust only with builtin keys

 Documentation/kernel-parameters.txt      |  5 ++++
 crypto/asymmetric_keys/asymmetric_keys.h |  2 ++
 crypto/asymmetric_keys/asymmetric_type.c | 50 ++++++++++++++++++++------------
 crypto/asymmetric_keys/x509_public_key.c | 26 +++++++++++++++--
 include/linux/key.h                      |  1 +
 kernel/system_keyring.c                  |  1 +
 6 files changed, 64 insertions(+), 21 deletions(-)

-- 
1.9.1