(29) “medium” means any person sending, receiving, advancing or saving any data message or any service rendering on this data message on behalf of any other person for a particular data message; (30) “licence” means a licence granted under section 22 of this Act; (31) “authentication service provider” means certificate issuing authority or any person rendering service related to digital signature. (32) “certifying authority” means a person or authority who has been granted a licence under section 18 to be read with section 22 of this Act to issue a Digital Signature Certificate: (33) “certification practice and description of procedure” means certification practice and description of procedure defined by the regulation where practices and procedures are written for issuing Digital Signature Certificate; (34) “member” means a member of cyber appeal tribunal constituted under section 82 of this Act; (35) “signatory” means a person providing signature generated through signature generating machine or procedure; (36) “signature verification machine” means software or hardware used for verifying signature; (37) “signature generating machine” means software or hardware used generating data for creating signature; (38) “cyber tribunal” or “tribunal” means a cyber tribunal constituted under section 82 of this Act; (39) “cyber appeal tribunal” means a cyber appeal tribunal constituted under section 82 of this Act. 3. Domination of the Act.-- Where any law provides whatever anything it contained, the rules of this Act shall be in force; 4. Inter-state application of the Act.--(1) If any person commits offence or contravention under this Act outside of Bangladesh which is punishable under this Act if he commits it in Bangladesh, then this Act shall apply as such he commits offence or contravention in Bangladesh; (2) If any person commits offence or contravention in Bangladesh under this Act from outside Bangladesh using a computer, computer system or computer network located in Bangladesh, then this Act shall apply as such the entire process of the offence or contravention took place in Bangladesh; (3) If any person from within Bangladesh commits offence or contravention outside of Bangladesh under this Act, then this Act shall apply against him as such the entire process of the offence or contravention took place in Bangladesh; Chapter II DIGITAL SIGNATURE & ELECTRONIC RECORDS 5. Authentication of electronic records by digital signature.--(1) Subject to the provision of sub-section (2) of this section, any subscriber may authenticate an electronic record by affixing his digital signature. (2) The authentication of electronic record shall be effected by the use of technology neutral system or standard authentic signature generating machine or strategy. 6. Legal recognition of electronic records.--Where any law provides that information or any other matter shall be in writing or in the typewritten or printed form, then, notwithstanding anything contained in such law, such information or matter is rendered or made available in an electronic form: Provided that such information or matter is accessible so as to be usable for a subsequent reference. 3