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Providing technical and customer support in connection with remote authentication on documents; development, design, implementation, testing, analysis and consulting services in the field of security systems; access, authorization, authentication encryption and identification services systems for computers, computer hardware and computer networks; development, integration and operation of computer systems to support issuance and management of digital certificates; creation and implementation of procedures and processes for issuance and management of digital certificates; securing by the use of digital certificates; electronic signature verification and authorization services using technology to authenticate user identity; on-line authentication of user's digital signatures in electronic commerce; digital signature verification services; identity theft and fraud prevention services relating to electronic commerce; identification, authorization, authentication and verification of data using technology to authenticate user identity; securing of electronic and computer data exchanges by issuing and authenticating digital certificates; certification of legal documents through computer solutions for electronic signatures, evidence management, timestamping, secure file exchange and management of digital identities