Computer services, namely providing authentication of identity; 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; creation and implementation of procedures and practices for issuance and management of digital certificates; consulting relating to the issuance and management of digital certificates; and technical and customer support for entities using digital certificates