42 Technical and customer support in the nature of repairs of software for entities using digital certificates; and computer services, namely providing authentication of identity of individuals, entities and roles using a global computer network or other computer networks; computer services, namely, issuance and management of digital certificates for authentication or encryption of a digital communication or authentication of a digital signature in an electronic transaction or communication over a global computer network or other computer network; development, integration, and operation of computer systems to support issuance and management of digital certificates used in authentication or encryption of digital communications; computer services, namely, creating, implementing and providing procedures and practices for issuance and management of digital certificates; computer consulting relating to the issuance and management of digital certificates used in authentication or encryption of digital communications; and providing customer assistance, namely, information on the issuance and operation of digital certificates used in authentication or encryption of digital communications