| http://www.w3.org/ns/prov#value | - status comprises determining whether the sender is trusted or untrusted; the secure message also includes a Certificate (Cert) of the sender, the Cert including sender identity information and a public key bound to the sender identity information by a Cert signature generated by an issuer of the Cert; and the step of checking trust status of the sender comprises the steps of: checking the Cert si
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