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. v2: Changed the help wording in the Kconfig. 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 | 9 ++++++++ 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, 76 insertions(+), 5 deletions(-) -- 2.16.4