diff --git a/certs/generate_certs.sh b/certs/generate_certs.sh
index e80fafd..5793ac9 100755
--- a/certs/generate_certs.sh
+++ b/certs/generate_certs.sh
@@ -23,6 +23,10 @@ openssl asn1parse -in inter.cert -out inter.cert.der
 openssl asn1parse -in inter.key -out inter.key.der
 cat inter.cert.der inter.key.der > inter.der
 
+# Generate the responder SubjectPublicKeyInfo
+openssl x509 -inform DER -in ca.cert.der -pubkey -noout -out ca.pub
+openssl asn1parse -in ca.pub -out ca.pub.der
+
 # Generate Leaf CSRs
 openssl req -nodes -newkey ec:param.pem \
        -keyout end_requester.key -out end_requester.req -sha384 -batch \
diff --git a/certs/slot0/ca.der b/certs/slot0/ca.der
new file mode 100644
index 0000000..b890e46
Binary files /dev/null and b/certs/slot0/ca.der differ
diff --git a/certs/slot0/ca.pub b/certs/slot0/ca.pub
new file mode 100644
index 0000000..eb56c05
--- /dev/null
+++ b/certs/slot0/ca.pub
@@ -0,0 +1,5 @@
+-----BEGIN PUBLIC KEY-----
+MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEblIXPCYTxE7ZH8vTYINO5JO5+8vPTHZF
+098QaMaf/8Vahikbod4mC9e9pqlDR9a5Ylc9xVb02QfXQuMWJix4L8hckVsbw+dN
+R9wd07kaeQXruZAVs7c+zyMXeroWcMNN
+-----END PUBLIC KEY-----
diff --git a/manifest/manifest.in.cbor b/manifest/manifest.in.cbor
index 668e15c..da2d0a4 100644
--- a/manifest/manifest.in.cbor
+++ b/manifest/manifest.in.cbor
@@ -20,7 +20,7 @@
             }
           },
           / authorised-by / 2: [
-            / tagged-pkix-base64-key-type / 554("base64_key_X")
+            / tagged-pkix-base64-key-type / 554("3076301006072a8648ce3d020106052b81040022036200046e52173c2613c44ed91fcbd360834ee493b9fbcbcf4c7645d3df1068c69fffc55a86291ba1de260bd7bda6a94347d6b962573dc556f4d907d742e316262c782fc85c915b1bc3e74d47dc1dd3b91a7905ebb99015b3b73ecf23177aba1670c34d")
           ]
         },
         / measurement-map / {
@@ -31,7 +31,7 @@
             }
           },
           / authorised-by / 2: [
-            / tagged-pkix-base64-key-type / 554("base64_key_X")
+            / tagged-pkix-base64-key-type / 554("3076301006072a8648ce3d020106052b81040022036200046e52173c2613c44ed91fcbd360834ee493b9fbcbcf4c7645d3df1068c69fffc55a86291ba1de260bd7bda6a94347d6b962573dc556f4d907d742e316262c782fc85c915b1bc3e74d47dc1dd3b91a7905ebb99015b3b73ecf23177aba1670c34d")
           ]
         },
         / measurement-map / {
@@ -42,7 +42,7 @@
             }
           },
           / authorised-by / 2: [
-            / tagged-pkix-base64-key-type / 554("base64_key_X")
+            / tagged-pkix-base64-key-type / 554("3076301006072a8648ce3d020106052b81040022036200046e52173c2613c44ed91fcbd360834ee493b9fbcbcf4c7645d3df1068c69fffc55a86291ba1de260bd7bda6a94347d6b962573dc556f4d907d742e316262c782fc85c915b1bc3e74d47dc1dd3b91a7905ebb99015b3b73ecf23177aba1670c34d")
           ]
         }
         ]