| Message ID | 20200302122759.5204-3-James.Bottomley@HansenPartnership.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | TPM 2.0 trusted keys with attached policy | expand |
On Mon, Mar 02, 2020 at 07:27:55AM -0500, James Bottomley wrote: > The TCG has defined an OID prefix "2.23.133.10.1" for the various TPM > key uses. We've defined three of the available numbers: > > 2.23.133.10.1.3 TPM Loadable key. This is an asymmetric key (Usually > RSA2048 or Elliptic Curve) which can be imported by a > TPM2_Load() operation. > > 2.23.133.10.1.4 TPM Importable Key. This is an asymmetric key (Usually > RSA2048 or Elliptic Curve) which can be imported by a > TPM2_Import() operation. > > Both loadable and importable keys are specific to a given TPM, the > difference is that a loadable key is wrapped with the symmetric > secret, so must have been created by the TPM itself. An importable > key is wrapped with a DH shared secret, and may be created without > access to the TPM provided you know the public part of the parent key. > > 2.23.133.10.1.5 TPM Sealed Data. This is a set of data (up to 128 > bytes) which is sealed by the TPM. It usually > represents a symmetric key and must be unsealed before > use. > > The ASN.1 binary key form starts of with this OID as the first element > of a sequence, giving the binary form a unique recognizable identity > marker regardless of encoding. > > Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Didn't I ack already this? Anyway Acked-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> /Jarkko
diff --git a/include/linux/oid_registry.h b/include/linux/oid_registry.h index 657d6bf2c064..f6e2276e5f30 100644 --- a/include/linux/oid_registry.h +++ b/include/linux/oid_registry.h @@ -107,6 +107,11 @@ enum OID { OID_gostTC26Sign512B, /* 1.2.643.7.1.2.1.2.2 */ OID_gostTC26Sign512C, /* 1.2.643.7.1.2.1.2.3 */ + /* TCG defined OIDS for TPM based keys */ + OID_TPMLoadableKey, /* 2.23.133.10.1.3 */ + OID_TPMImportableKey, /* 2.23.133.10.1.4 */ + OID_TPMSealedData, /* 2.23.133.10.1.5 */ + OID__NR };
The TCG has defined an OID prefix "2.23.133.10.1" for the various TPM key uses. We've defined three of the available numbers: 2.23.133.10.1.3 TPM Loadable key. This is an asymmetric key (Usually RSA2048 or Elliptic Curve) which can be imported by a TPM2_Load() operation. 2.23.133.10.1.4 TPM Importable Key. This is an asymmetric key (Usually RSA2048 or Elliptic Curve) which can be imported by a TPM2_Import() operation. Both loadable and importable keys are specific to a given TPM, the difference is that a loadable key is wrapped with the symmetric secret, so must have been created by the TPM itself. An importable key is wrapped with a DH shared secret, and may be created without access to the TPM provided you know the public part of the parent key. 2.23.133.10.1.5 TPM Sealed Data. This is a set of data (up to 128 bytes) which is sealed by the TPM. It usually represents a symmetric key and must be unsealed before use. The ASN.1 binary key form starts of with this OID as the first element of a sequence, giving the binary form a unique recognizable identity marker regardless of encoding. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> --- v3: correct OID_TPMImportableKey name --- include/linux/oid_registry.h | 5 +++++ 1 file changed, 5 insertions(+)