Add support for X.520 uniqueIdentifier
diff --git a/include/polarssl/oid.h b/include/polarssl/oid.h
index 6b04893..31a7d2b 100644
--- a/include/polarssl/oid.h
+++ b/include/polarssl/oid.h
@@ -122,6 +122,7 @@
#define OID_AT_GIVEN_NAME OID_AT "\x2A" /**< id-at-givenName AttributeType:= {id-at 42} */
#define OID_AT_INITIALS OID_AT "\x2B" /**< id-at-initials AttributeType:= {id-at 43} */
#define OID_AT_GENERATION_QUALIFIER OID_AT "\x2C" /**< id-at-generationQualifier AttributeType:= {id-at 44} */
+#define OID_AT_UNIQUE_IDENTIFIER OID_AT "\x2D" /**< id-at-uniqueIdentifier AttributType:= {id-at 45} */
#define OID_AT_DN_QUALIFIER OID_AT "\x2E" /**< id-at-dnQualifier AttributeType:= {id-at 46} */
#define OID_AT_PSEUDONYM OID_AT "\x41" /**< id-at-pseudonym AttributeType:= {id-at 65} */