Define SPDM Key-Map CDDL data structure for KeyPair Discovery (#32)

Signed-off-by: Fabrizio Damato <fabrizio.damato@amd.com>

Author: fdamato

specifications/device-identity-provisioning/cddl/spdm-key.cddl

@@ -0,0 +1,17 @@
+spdm-key = spdm-key-map / tagged-spdm-key-map
+
+tagged-spdm-key-map = #6.572(spdm-key-map) ; speculative because IANA registry is still pending
+
+$key-attributes-type = tagged-oid-type
+
+; TODO: OCP will assign few attributes types but the field is not restricted to those
+
+spdm-key-dict = {
+  &(id: 0) => uint
+  &(attrib: 1) => [+ key-attributes-type]
+}
+
+spdm-key-map = {
+  &(key: 0) =>  [+ spdm-key-map]
+}
+

specifications/device-identity-provisioning/diag/spdm-key-map.diag

@@ -0,0 +1,16 @@
+/ tagged-spdm-key-map / 572( {
+   / key / 0 : [
+    {
+      / id / 0 : 0,
+      / attrib / 1: [
+        / tagged-oid-type / 111(h'6086480186F84D010F046301')
+        ]
+    },
+    {
+      / id / 0 : 1,
+      / attrib / 1: [
+        / tagged-oid-type / 111(h'6086480186F84D010F046301')
+        ]
+    }
+   ]
+} )