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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2021-01-27 11:06:14 -0800
committerJarkko Sakkinen <jarkko@kernel.org>2021-04-14 16:30:30 +0300
commit1c6476e9741e30be57e0b370d4405214f055607c (patch)
tree709b67483d2b12b71a643c8a4573e7a98f31afb0 /include/linux/oid_registry.h
parentb07067627cd5f1f6dc60c224b47c728f7f4b7b45 (diff)
oid_registry: Add TCG defined OIDS for TPM keys
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> Reviewed-by: David Howells <dhowells@redhat.com> Acked-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Diffstat (limited to 'include/linux/oid_registry.h')
-rw-r--r--include/linux/oid_registry.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/oid_registry.h b/include/linux/oid_registry.h
index 4462ed2c18cd..d06988d1565e 100644
--- a/include/linux/oid_registry.h
+++ b/include/linux/oid_registry.h
@@ -113,6 +113,11 @@ enum OID {
OID_SM2_with_SM3, /* 1.2.156.10197.1.501 */
OID_sm3WithRSAEncryption, /* 1.2.156.10197.1.504 */
+ /* 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
};