Added requirements for trust network actors on pki material exchange …

…transactions

input/fsh/requirements/requirements.fsh

@@ -0,0 +1,39 @@
+
+Instance:   publish-pki-material
+InstanceOf: Requirements
+Usage: #definition
+* title = "Publish PKI material"
+* status = $pubStatus#active
+* publisher = "WHO"
+* description = "Publish trust material to a Trust Anchor"
+* actor[+] = Canonical(TrustNetworkParticipant)
+
+
+
+Instance:   receive-pki-material
+InstanceOf: Requirements
+Usage: #definition
+* title = "Receive PKI material"
+* status = $pubStatus#active
+* publisher = "WHO"
+* description = "Receive trust material from a Trust Network Participant, for distribution within the Trust Network"
+* actor[+] = Canonical(TrustNetworkAnchor)
+
+Instance:   distribute-pki-material
+InstanceOf: Requirements
+Usage: #definition
+* title = "Distribute PKI material"
+* status = $pubStatus#active
+* publisher = "WHO"
+* description = "Make received trust material available through a distrubution point to a Trust Network Participant"
+* actor[+] = Canonical(TrustNetworkAnchor)
+
+Instance:   retrieve-pki-material
+InstanceOf: Requirements
+Usage: #definition
+* title = "Retrieve PKI material"
+* status = $pubStatus#active
+* publisher = "WHO"
+* description = "Retrieve PKI material from a distribution point"
+* actor[+] = Canonical(TrustNetworkParticipant)
+* actor[+] = Canonical(TrustNetworkAnchor)