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List: linux-keyrings
Subject: [PATCH 16/17] asymmetric_keys: add TPM2 ASN1 definition
From: James Prestwood <prestwoj () gmail ! com>
Date: 2020-05-18 17:27:03
Message-ID: 20200518172704.29608-17-prestwoj () gmail ! com
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Copied the TPM2 ASN1 definition from trusted-keys
Signed-off-by: James Prestwood <prestwoj@gmail.com>
---
crypto/asymmetric_keys/tpm2key.asn1 | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
create mode 100644 crypto/asymmetric_keys/tpm2key.asn1
diff --git a/crypto/asymmetric_keys/tpm2key.asn1 b/crypto/asymmetric_keys/tpm2key.asn1
new file mode 100644
index 000000000000..f930fd812db3
--- /dev/null
+++ b/crypto/asymmetric_keys/tpm2key.asn1
@@ -0,0 +1,23 @@
+---
+--- Note: This isn't quite the definition in the standard
+--- However, the Linux asn.1 parser doesn't understand
+--- [2] EXPLICIT SEQUENCE OF OPTIONAL
+--- So there's an extra intermediate TPMPolicySequence
+--- definition to work around this
+
+TPMKey ::= SEQUENCE {
+ type OBJECT IDENTIFIER ({tpmkey_type}),
+ emptyAuth [0] EXPLICIT BOOLEAN OPTIONAL,
+ policy [1] EXPLICIT TPMPolicySequence OPTIONAL,
+ secret [2] EXPLICIT OCTET STRING OPTIONAL,
+ parent INTEGER ({tpmkey_parent}),
+ pubkey OCTET STRING ({tpmkey_pub}),
+ privkey OCTET STRING ({tpmkey_priv})
+ }
+
+TPMPolicySequence ::= SEQUENCE OF TPMPolicy
+
+TPMPolicy ::= SEQUENCE {
+ commandCode [0] EXPLICIT INTEGER ({tpmkey_code}),
+ commandPolicy [1] EXPLICIT OCTET STRING ({tpmkey_policy})
+ }
--
2.21.1
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