Data encryption services for providing security and anonymity for electronically transmitted credit card transactions; Computer security services in the nature of providing authentication, issuance, validation and revocation of digital certificates; Consulting services in the field of software as a service (SAAS); Design, development, and implementation of software for data security services; Electronic document and e-mail authentication services; Providing user authentication services using single sign-on technology for online software applications; User authentication services using single sign-on technology for online software applications; User authentication services using technology for e-commerce transactions