42 Providing non-downloadable computer programs for authentication; Providing non-downloadable computer programs for authentication, data filing, digital signing, data encryption and removing computer viruses; Computer programming for authentication, data filing, electronic signature, data encryption and computer virus removal; Maintenance of computer programs; Issuance, distribution and management of digital certificates; Examination and certification of conformity to standards for foods treated in accordance with Islamic laws, and consultancy services relating thereto; Certification and assessment in the field of food; Certification and assessment of companies, institutions, government or quasi-government institutions, public bodies and other organizations based on their compliance with internationally accepted standards relating to health and safety, information security, quality, the environment, human resources, business and integrated management systems, certification of goods of manufacturers that produce consumer goods and/or commercial goods, service providers, public bodies, institutions and government institutions, and consultancy services relating thereto; Examination, approval or certification of conformity to standards for quality assurance of goods in accordance with Jewish laws, and inspection thereof; Examination, certification and issuance of certificates relating to carbon offset activities of enterprises; Examination and certification of conformity to ecosystem conservation standards; Examination, assessment, registration and issuance of certification relating to eco-friendliness of business operation; Examination, approval or certification of conformity to standards for environmental certification of goods; Computer programming; Testing, inspection or research of pharmaceuticals, cosmetics or foodstuffs; Research relating to building construction or city planning; Testing or research on prevention of pollution; Testing or research on electricity; Testing or research on civil engineering