| Message ID | 20200130101812.6271-1-James.Bottomley@HansenPartnership.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | TPM 2.0 trusted keys with attached policy | expand |
On Thu, Jan 30, 2020 at 11:18:06AM +0100, James Bottomley wrote: > This is mainly a respin to add more spacing as Jarkko requested. > However, I also added the seal/unseal operations to the > openssl_tpm2_engine (next branch): > > https://git.kernel.org/pub/scm/linux/kernel/git/jejb/openssl_tpm2_engine.git/ > > With the result that the kernel code completely failed the > interoperability checks because the ASN.1 format requires the TPM2B > length prepended to the public and private blobs. I corrected this in > patch 4 and now all the interoperability tests are passing. > > General cover letter: > > 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). It also simplifies the use of policy with keys because > the ASN.1 format is designed to carry a description of how to > construct the policy, with the result that simple policies (like > authorization and PCR locking) can now be constructed and used in the > kernel, bringing the TPM 2.0 policy use into line with how TPM 1.2 > works. > > James > > --- > > James Bottomley (6): > 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: add ability to specify arbitrary policy > security: keys: trusted: implement counter/timer policy > > Documentation/security/keys/trusted-encrypted.rst | 64 ++- > include/keys/trusted-type.h | 7 +- > include/linux/asn1_encoder.h | 32 ++ > include/linux/oid_registry.h | 5 + > include/linux/tpm.h | 8 + > lib/Makefile | 2 +- > lib/asn1_encoder.c | 431 ++++++++++++++++++++ > security/keys/Kconfig | 2 + > security/keys/trusted-keys/Makefile | 2 +- > security/keys/trusted-keys/tpm2-policy.c | 463 ++++++++++++++++++++++ > security/keys/trusted-keys/tpm2-policy.h | 31 ++ > security/keys/trusted-keys/tpm2key.asn1 | 23 ++ > security/keys/trusted-keys/trusted_tpm1.c | 50 ++- > security/keys/trusted-keys/trusted_tpm2.c | 370 +++++++++++++++-- > 14 files changed, 1454 insertions(+), 36 deletions(-) > create mode 100644 include/linux/asn1_encoder.h > create mode 100644 lib/asn1_encoder.c > create mode 100644 security/keys/trusted-keys/tpm2-policy.c > create mode 100644 security/keys/trusted-keys/tpm2-policy.h > create mode 100644 security/keys/trusted-keys/tpm2key.asn1 > > -- > 2.16.4 Somehow managed to drown this to my emails. Looking into next week. /Jarkko >