Security Considerations

SEC01 If NASH certificate available it SHOULD be used for encryption and signing

SEC02 Vendors WILL BE responsible for their directory entries including certificate and identity quality assurance.

SEC03 Trust of vendor provider directory entries MUST be agreed between vendors implementing secure message exchange capability.

SEC04 Vendor allocated certificates MAY be used in Endpoint encrypting certificate extension content

SEC05 Vendor certificate allocation written policy statement SHOULD be made available for users of these certificates.

SEC06 Vendor certificates allocated to an Endpoint MUST contain a URL matching one of the Endpoint.identifier (Secure Messaging Target Identifier) values in the associated Endpoint instance

SEC07 Vendor allocated Endpoint.identifier (Secure Messaging Target Identifier) values (URL) must be assigned in domain under the vendor's control.

SEC08 Endpoint published vendor encrypting certificates MUST be issued by a CA where trust chain can be checked

SEC09 Vendor certificate secure message signed payload MUST provide a certificate where CA trust chain can be checked

SEC10 Secure message metadata senderOrganisation (URI) MUST be present in the signing certificate Subject Alternative Names property