Update to fix blobauth parsing problem. General cover letter minus policy bit: This patch updates the trusted key code to export keys in the ASN.1 format used by current TPM key tools (openssl_tpm2_engine and openconnect). The current code will try to load keys containing policy, but being unable to formulate the policy commands necessary to load them, the unseal will always fail unless the policy is executed in user space and a pre-formed policy session passed in. The key format is designed to be compatible with our two openssl engine implementations as well as with the format used by openconnect. I've added seal/unseal to my engine so I can use it for interoperability testing and I'll later use this for sealed symmetric keys via engine: https://git.kernel.org/pub/scm/linux/kernel/git/jejb/openssl_tpm2_engine.git/ James --- James Bottomley (5): lib: add ASN.1 encoder oid_registry: Add TCG defined OIDS for TPM keys security: keys: trusted: fix TPM2 authorizations security: keys: trusted: use ASN.1 TPM2 key format for the blobs security: keys: trusted: Make sealed key properly interoperable .../security/keys/trusted-encrypted.rst | 58 +++ include/keys/trusted-type.h | 2 + include/linux/asn1_encoder.h | 32 ++ include/linux/oid_registry.h | 5 + include/linux/tpm.h | 2 + lib/Kconfig | 3 + lib/Makefile | 1 + lib/asn1_encoder.c | 454 ++++++++++++++++++ security/keys/Kconfig | 1 + security/keys/trusted-keys/Makefile | 2 +- security/keys/trusted-keys/tpm2key.asn1 | 11 + security/keys/trusted-keys/trusted_tpm1.c | 34 +- security/keys/trusted-keys/trusted_tpm2.c | 266 +++++++++- 13 files changed, 840 insertions(+), 31 deletions(-) create mode 100644 include/linux/asn1_encoder.h create mode 100644 lib/asn1_encoder.c create mode 100644 security/keys/trusted-keys/tpm2key.asn1 -- 2.26.2
