[RFC PATCH 0/2] Check codeSigning extended key usage extension

Lee, Chun-Yi
2020-10-20T06:50:35Z

NIAP PP_OS certification requests that the OS shall validate the
CodeSigning extended key usage extension field for integrity
verifiction of exectable code:

https://www.niap-ccevs.org/MMO/PP/-442-/
FIA_X509_EXT.1.1

This patchset adds the logic for parsing the codeSigning EKU extension
field in X.509. And checking the CodeSigning EKU when verifying signature
of kernel module or kexec PE binary in PKCS#7.

Lee, Chun-Yi (2):
X.509: Add CodeSigning extended key usage parsing
PKCS#7: Check codeSigning EKU for kernel module and kexec pe
verification

certs/system_keyring.c | 2 +-
crypto/asymmetric_keys/Kconfig | 10 +++++++++
crypto/asymmetric_keys/pkcs7_trust.c | 37 ++++++++++++++++++++++++++++---
crypto/asymmetric_keys/x509_cert_parser.c | 24 ++++++++++++++++++++
include/crypto/pkcs7.h | 3 ++-
include/crypto/public_key.h | 1 +
include/linux/oid_registry.h | 5 +++++
7 files changed, 77 insertions(+), 5 deletions(-)

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2.16.4