Release 10.1A: OpenEdge Getting Started:
Core Business Services

Message digests and MACs

A PKI also uses message digests and message authentication code (MAC) algorithms to support data integrity services. These include the integrity of data transmitted from point to point over PKI-authenticated connections and the integrity of data that has been authenticated using digital signatures to authenticate the original sender of the data. For more information on digital signatures, see the "Trust relationships and supporting mechanisms" section.