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authorDavid Howells <dhowells@redhat.com>2012-09-24 17:11:48 +0100
committerRusty Russell <rusty@rustcorp.com.au>2012-10-08 13:50:22 +1030
commitc26fd69fa00916a31a47f5f096fd7be924106df8 (patch)
tree842075a43c3587ab0a93212b7f96563f616d6c33 /crypto/asymmetric_keys/x509.asn1
parente1045992949160b56309b730b8bdc428f2f8b69e (diff)
downloadvexpress-lsk-c26fd69fa00916a31a47f5f096fd7be924106df8.tar.gz
X.509: Add a crypto key parser for binary (DER) X.509 certificates
Add a crypto key parser for binary (DER) encoded X.509 certificates. The certificate is parsed and, if possible, the signature is verified. An X.509 key can be added like this: # keyctl padd crypto bar @s </tmp/x509.cert 15768135 and displayed like this: # cat /proc/keys 00f09a47 I--Q--- 1 perm 39390000 0 0 asymmetri bar: X509.RSA e9fd6d08 [] Note that this only works with binary certificates. PEM encoded certificates are ignored by the parser. Note also that the X.509 key ID is not congruent with the PGP key ID, but for the moment, they will match. If a NULL or "" name is given to add_key(), then the parser will generate a key description from the CertificateSerialNumber and Name fields of the TBSCertificate: 00aefc4e I--Q--- 1 perm 39390000 0 0 asymmetri bfbc0cd76d050ea4:/C=GB/L=Cambridge/O=Red Hat/CN=kernel key: X509.RSA 0c688c7b [] Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'crypto/asymmetric_keys/x509.asn1')
-rw-r--r--crypto/asymmetric_keys/x509.asn160
1 files changed, 60 insertions, 0 deletions
diff --git a/crypto/asymmetric_keys/x509.asn1 b/crypto/asymmetric_keys/x509.asn1
new file mode 100644
index 00000000000..bf32b3dff08
--- /dev/null
+++ b/crypto/asymmetric_keys/x509.asn1
@@ -0,0 +1,60 @@
+Certificate ::= SEQUENCE {
+ tbsCertificate TBSCertificate ({ x509_note_tbs_certificate }),
+ signatureAlgorithm AlgorithmIdentifier,
+ signature BIT STRING ({ x509_note_signature })
+ }
+
+TBSCertificate ::= SEQUENCE {
+ version [ 0 ] Version DEFAULT,
+ serialNumber CertificateSerialNumber,
+ signature AlgorithmIdentifier ({ x509_note_pkey_algo }),
+ issuer Name ({ x509_note_issuer }),
+ validity Validity,
+ subject Name ({ x509_note_subject }),
+ subjectPublicKeyInfo SubjectPublicKeyInfo,
+ issuerUniqueID [ 1 ] IMPLICIT UniqueIdentifier OPTIONAL,
+ subjectUniqueID [ 2 ] IMPLICIT UniqueIdentifier OPTIONAL,
+ extensions [ 3 ] Extensions OPTIONAL
+ }
+
+Version ::= INTEGER
+CertificateSerialNumber ::= INTEGER
+
+AlgorithmIdentifier ::= SEQUENCE {
+ algorithm OBJECT IDENTIFIER ({ x509_note_OID }),
+ parameters ANY OPTIONAL
+}
+
+Name ::= SEQUENCE OF RelativeDistinguishedName
+
+RelativeDistinguishedName ::= SET OF AttributeValueAssertion
+
+AttributeValueAssertion ::= SEQUENCE {
+ attributeType OBJECT IDENTIFIER ({ x509_note_OID }),
+ attributeValue ANY ({ x509_extract_name_segment })
+ }
+
+Validity ::= SEQUENCE {
+ notBefore Time ({ x509_note_not_before }),
+ notAfter Time ({ x509_note_not_after })
+ }
+
+Time ::= CHOICE {
+ utcTime UTCTime,
+ generalTime GeneralizedTime
+ }
+
+SubjectPublicKeyInfo ::= SEQUENCE {
+ algorithm AlgorithmIdentifier,
+ subjectPublicKey BIT STRING ({ x509_extract_key_data })
+ }
+
+UniqueIdentifier ::= BIT STRING
+
+Extensions ::= SEQUENCE OF Extension
+
+Extension ::= SEQUENCE {
+ extnid OBJECT IDENTIFIER ({ x509_note_OID }),
+ critical BOOLEAN DEFAULT,
+ extnValue OCTET STRING ({ x509_process_extension })
+ }