Add AT TP to check that signer id is a digest

requality/TS103096/root/Requirements/SEC_ITSS/SEC_ITSS_SND/SEC_ITSS_SND_CERT/SEC_ITSS_SND_CERT_AT/SEC_ITSS_SND_CERT_AT_03.json

+{
+    "attributes": {
+        "_description": {
+            "isGenerated": false,
+            "key": "_description",
+            "origin": "463b2a4d-4f6f-4d82-a44c-933479415c60",
+            "type": "STRING",
+            "value": "If ITS-S sends an AA certificate check that the SignerInfo field is set to certificate_digest_with_ecdsa256"
+        },
+        "_locations": {
+            "elements_type": "STRING",
+            "isGenerated": false,
+            "key": "_locations",
+            "origin": "463b2a4d-4f6f-4d82-a44c-933479415c60",
+            "type": "LIST",
+            "value": [
+                "/Documents/Draft_ETSI_TS_103 097 v1.1.14.xhtml/b75ba1b0-386f-4343-905d-58169c7296de",
+                "/Documents/ts_103097v010201p.xhtml/21450aa2-5444-4b7f-999a-4a385c833eec"
+            ]
+        },
+        "_name": {
+            "isGenerated": false,
+            "key": "_name",
+            "origin": "c74d80c4-958c-4662-8b0f-1b9117336727",
+            "type": "STRING",
+            "value": "03. Check that signer info of AT certificate is a digest"
+        },
+        "_transferStatus": {
+            "isGenerated": false,
+            "key": "_transferStatus",
+            "origin": "463b2a4d-4f6f-4d82-a44c-933479415c60",
+            "type": "STRING",
+            "value": "COMPLETE"
+        },
+        "_type": {
+            "isGenerated": false,
+            "key": "_type",
+            "origin": "463b2a4d-4f6f-4d82-a44c-933479415c60",
+            "type": "STRING",
+            "value": "Requirement"
+        }
+    },
+    "uuid": "c74d80c4-958c-4662-8b0f-1b9117336727"
+}
\ No newline at end of file

requality/TS103096/root/Requirements/SEC_ITSS/SEC_ITSS_SND/SEC_ITSS_SND_CERT/SEC_ITSS_SND_CERT_AT/SEC_ITSS_SND_CERT_AT_03/TP_SEC_ITSS_SND_CERT_AT_03_01_BV.json

+{
+    "attributes": {
+        "_author": {
+            "isGenerated": false,
+            "key": "_author",
+            "origin": "03c1aca5-e858-4ef4-9ece-f19653e0dfd6",
+            "type": "STRING",
+            "value": "filatov"
+        },
+        "_description": {
+            "isGenerated": false,
+            "key": "_description",
+            "origin": "4a8614a5-b969-452c-8be1-0c36a0c835d5",
+            "type": "STRING",
+            "value": "Check that signer_info type of AT certificates is set to 'certificate_digest_with_sha256'"
+        },
+        "_expectedResults": {
+            "isGenerated": false,
+            "key": "_expectedResults",
+            "origin": "4a8614a5-b969-452c-8be1-0c36a0c835d5",
+            "type": "STRING",
+            "value": "with {\r\n\tthe IUT being in the 'authorized' state\r\n\tthe IUT being requested to include certificate in the next CAM\r\n} ensure that {\r\n\t when {\r\n\t\tthe IUT is requested to send a CAM\r\n\t} then {\r\n\t\tthe IUT sends a SecuredMessage\r\n\t\t\tcontaining header_fields['signer_info'].signer\r\n\t\t\t\tcontaining type\r\n\t\t\t\t\tindicating 'certificate'\r\n\t\t\t\tand containing certificate\r\n\t\t\t\t\tcontaining signer_info.\r\n\t\t\t\t\t\tcontaining type\r\n\t\t\t\t\t\t\tindicating 'certificate_digest_with_sha256'\r\n\t}\r\n}"
+        },
+        "_status": {
+            "isGenerated": false,
+            "key": "_status",
+            "origin": "03c1aca5-e858-4ef4-9ece-f19653e0dfd6",
+            "type": "STRING",
+            "value": "in process"
+        },
+        "_type": {
+            "isGenerated": false,
+            "key": "_type",
+            "origin": "03c1aca5-e858-4ef4-9ece-f19653e0dfd6",
+            "type": "STRING",
+            "value": "TestPurpose"
+        }
+    },
+    "uuid": "4a8614a5-b969-452c-8be1-0c36a0c835d5"
+}
\ No newline at end of file